335results about How to "Raw materials are cheap and easy to get" patented technology

The invention provides a method for preparing an SiO2/TiO2 hollow microsphere by a sol-gel method. The method is mainly characterized in that cation polystyrene microsphere (PS) is used as a formwork; ethyl silicate and butyl titanate are respectively used as raw material and diluted ammonia is taken as regulator of pH value; a multi-layer organic-inorganic hybrid composite microsphere is obtained by the sol-gel reaction under the temperature of 70-80 DEG C. Formwork particle of the obtained deposition is removed by a calcining process to obtain the SiO2/ TiO2 hollow microsphere. By changing the consistency of reactant, content of surfactant and calcining temperature, the SiO2/ TiO2 hollow microsphere with different spherical shell thickness, density and grain size can be obtained. The hollow microsphere prepared by the method has high photo-catalytic activity, overcomes the shortage that existing preparation method of hollow microsphere can only prepare single shell layer microsphere; the multi-layer hollow microsphere can be prepared, the technique is simple, the cost is low and the preparation method of the invention is suitable for industrialized production.

The invention discloses a method for preparing gypsum-based self-leveling material for use in building material industry. The main material of the gypsum-based self-leveling material is desulfurized gypsum which is a desulfurization product from power plants. The method comprises: firstly, calcining the desulfurized gypsum in a calcining kiln; and secondly, mixing calcined gypsum powder accountingfor 50 to 78 percent of the total weight of the material, a water reducer accounting for 0.1 to 1 percent of the total weight of the material, a retarder accounting for 0.01 to 0.5 percent of the total weight of the material, a water-retaining agent accounting for 0.02 to 5 percent of the total weight of the material, a reinforcing agent accounting for 0 to 10 percent of the total weight of the material, re-dispersible emulsion powder accounting for 0.2 to 1.5 percent of the total weight of the material, a defoamer accounting for 0.05 to 0.2 percent of the total weight of the material, riversand accounting for 25 to 45 percent of total weight of the material and a filler accounting for 0 to 20 percent of the total weight of the material to obtain a the high-performance gypsum-based product. The invention provides a new method for producing high-quality gypsum-based self-leveling material characterized by high strength, high flowability, small contraction deformation and low cost by using the desulfurized gypsum, which provides a new way of comprehensively using desulfurized gypsum that is a solid waste and fills the blank that the preparation of gypsum-based self-leveling materials from desulfurized gypsum lacks in China.

The present invention relates to a preparation method and catalysis applications of efficient and simple zeolite imidazole framework ZIF-8 crystals with different morphologies, and belongs to the technical field of porous material synthesis. The preparation method comprises: respectively dissolving a zinc salt and 2-methylimidazole in a certain amount of methanol, stirring to completely dissolve, carrying out mixing stirring on the two solutions for 10 min to obtain a white emulsion, and carrying out centrifuged washing and drying to obtain the ZIF-8 crystal. According to the method of the present invention, the different zinc salts are used to obtain the ZIF-8 crystals with good crystallinity while the ZIF-8 prepared from different zinc slats have significant difference in the particle sizes, the specific surface areas and the pore size distribution. The present invention further discloses applications of the ZIF-8 as a Knoevenagel reaction catalyst, wherein the ZIF-8 has advantages of high catalytic efficiency, mild reaction conditions, high yield, environmental protection, no toxicity, good application prospect, and the like.

The invention provides a preparation method and application of nanosheet self-assembled microflower-shaped VS2. The preparation method comprises the steps that firstly, the pH of a vanadium source solution and the pH of a sulfur source solution are regulated to be 11-14 under the magnetic stirring state through a sodium hydroxide solution; secondly, the solutions are poured into a reaction inner lining, the inner lining is contained in an outer kettle and fixed, and then the outer kettle is placed in a homogeneous reaction instrument; finally, a product obtained after a reaction is cooled, washed, collected and dried, and then the nanosheet self-assembled microflower-shaped VS2 can be obtained. The technology of the method is simple and easy to control, and the prepared nanosheet self-assembled microflower-shaped VS2 is uniform in chemical constitution and high in purity, has a specific self-assembled structure and shows the excellent electrochemical property when the nanosheet self-assembled microflower-shaped VS2 serves as a lithium-sodium ion battery electrode material. In addition, the method has the advantages that the defect that a traditional calcination method is high in temperature is overcome, large equipment and harsh reaction conditions are not needed, the raw materials are cheap and easy to obtain, the cost is low, the yield is high, aftertreatment is not needed, and the method is friendly to the environment and can be suitable for large-scale production.

The invention relates to the preparation method of Li4Ti5O12 as the negative electrode material of Li-ion battery. The preparation method comprises the following steps: dissolving nanoscale TiO2 and Li salts in a solvent at a molar ratio of 5:4 to 5:4.5, mixing completely, drying to remove the solvent to obtain a pre-mixture, heating the pre-mixture to melt the salt, soaking for 2 to 5 h, and calcining at 600 to 1,000 DEG C for 6 to 16 h to obtain Li4Ti5O12 with spinel structure and particle diameter of 0.3 to 2 mum. The preparation method has the advantages of easily-obtained raw materials, low cost, simple preparation process, low energy consumption, easy industrial production, no generation of the three wastes, no environmental pollution, and wide application prospect. By adopting a eutectic mixture as the molten medium, the preparation method can prepare high-performance and high-dispersion nanoscale Li4Ti5O12 with high specific surface area at lower temperature.

The invention discloses a preparation method of hydrogenation catalyst with X/Ni/A1 hydrotalcite as precursor. The invention comprises adopting coprecipitation method to prepare X/Ni/A1 hydrotalcite with laminated structure, roasting at high temperature to produce X/Ni/A1 containing composite metal oxide, reducing by high temperature hydrogenation to obtain X/Ni/A1 containing hydrogenation catalyst with high dispersion and large specific surface area, in the presence of X/Ni/A1 containing composite metal oxide and under proper reaction conditions, making generation of gamma-valerolactone by levulinic acid hydrogenation with good effect. The catalyst of the invention has easily obtained and low cost raw materials, simple and feasible production techniques, large specific surface area and easily separated product.

The invention discloses a preparation method and an application method of a visible-light response type bismuth oxychloride photocatalyst, and belongs to the technical field of photocatalyst water treatment in the environmental chemical industry. The preparation method is characterized by comprising the following steps of: adding sodium bismuthate into absolute ethyl alcohol, and dispersing for 1 to 1.5h by magnetic stirring; preparing 100ml of 1.2mol.L<-1> hydrochloric acid, weighing potassium iodide of which the molar weight is equal to that of chloride ions in a prepared hydrochloric acid solution, and dissolving the potassium iodide into the hydrochloric acid solution to form a hydrochloric acid-potassium iodide mixed solution; dropwise adding the prepared hydrochloric acid-potassium iodide mixed solution into a sodium bismuthate-absolute ethyl alcohol dispersing system at the speed of adding 1mL of the mixed solution within 8 to 10 minutes by the magnetic stirring; stirring for 1.5 to 2h at the reaction temperature of 20 to 20.5 DEG C to prepare a suspended solution; filtering the suspended solution to obtain a filter cake; washing the filter cake for three times by using distilled water and the absolute ethyl alcohol; and drying the filter cake at the temperature of 40 to 50 DEG C to obtain the visible-light response type bismuth oxychloride photocatalyst. The visible-light response type bismuth oxychloride photocatalyst is used for adsorption and photocatalytic degradation of Rhodamine B or methylene blue dye wastewater, has good adsorption and photocatalytic degradation functions under visible light, is stable in catalytic activity and high in recycle rate, and has a practical application prospect.

The invention discloses a synthetic method of Ni3S2 microrod array. The synthetic method comprises following steps: 1, nickel foam to be treated is subjected to full ultrasonic cleaning and drying; 2, a vanadium source and a sulfur are dissolved in an appropriate amount of a solvent at a molar ratio of 1: (1-11), and full stirring is carried out so as to obtain a solution A, wherein the concentration of the vanadium source in the solution A is controlled to be 10 to 40mM; 3, the solution A is delivered into a hydrothermal reactor with a polytetrafluoroethylene lining, the nickel foam obtained via pretreatment in step 1 is immersed in the solution A, the hydrothermal reactor is sealed, and solvothermal reaction is carried out at 70 to 200 DEG C for 6 to 30h; and 4, after reaction, the hydrothermal reactor is cooled at room temperature, and an obtained product is washed fully and dried so as to obtain the Ni3S2 microrod array. Operation of the synthetic method is simple; reaction conditions are mild; reaction period is short; the purity of prepared Ni3S2 is high; the morphology is uniform; and excellent electrocatalytic hydrogen evolution performance is achieved.

The invention discloses a method for preparing gypsum powder for a ceramic mould in the ceramic industry, wherein the desulfurized product of power plants, i.e., desulfurized gypsum, is mainly used as a main raw material for the gypsum powder for the ceramic mould. The method comprises the steps of: calcining the desulfurized gypsum in a calcining kiln, and then doping 1-10 permillage of water reducer, 0-5 permillage of retarder, 0.2-50 permillage of water-retaining agent, 0-5 permillage of reinforcing agent and 0-20 percent of other filling materials into calcined gypsum powder for modification to obtain a gypsum powder product with excellent property. The invention develops a novel approach to the production of the excellent gypsum powder for the ceramic mould, which has the advantages of high strength, high hygroscopicity, low shrinkage deformation performance and low cost; and the invention not only develops the novel approach to the comprehensive utilization of the solid waste of desulfurized gypsum, but also solves the problem of poorer quality of the gypsum powder for the ceramic mould at present in China.

The invention relates to a method for preparing an anode material of a lithium ion battery of spinel lithium titanate. The invention provides a method for preparing a Li4Ti5O12 material through a low-temperature ionic diffusion reaction, aiming at the drawbacks of a high-temperature solid-phase Li4Ti5O12 synthesis process of high temperature, long time and high energy consumption and the drawbacks of a sol-gel synthesis process of complex process and higher cost. The method adopts a technical proposal that: titanium dioxide or metatitanic acid is uniformly dispersed in 1 to 20mol/L aqueous solution of LiOH, wherein the Lithium to Titanium ratio is (10-100):1; under a condition of uniform stirring, the mixed solution is heated to 60 to 150 DEG C to react for 6 to 72 hours; the obtained products are washed till the pH is equal to 7 to 8, filtered and dried to form a precursor of Lithium-titanium oxide precursor; and the prepared precursor is roasted at 500 to 800 DEG C for 3 to 12 hours to form the final product of Li4Ti5O12.

The invention relates to a non-autoclave-curing dry-mix active powder concrete and a preparation method thereof. The active powder concrete is prepared by proportionally mixing a dry material and water. The dry material is prepared by homogenizing the following components in parts by mass: 1 part of cementing material, 0.8-1.3 parts of powder additive, 0.01-0.2 part of aggregate and 0.01-0.25 part of steel fiber. The proportion of the dry material to the water is 1:(0.1-0.3). Under normal-temperature curing conditions, the compression strength of the active powder concrete material can reach 130 MPa above, the folding strength can reach 19 MPa above, and the elastic modulus can reach 48 GPa above. Field casting, controllable quality and environmental protection of the powder concrete are successfully implemented on the basis of the concept on dry-mix material preparation; and the prepared non-autoclave-curing active powder concrete can be used in the fields of high-speed railway cable trough cover plates, sidewalk plates, bridge floor, municipal well covers, repair and reinforcement, and the like.

The invention provides a preparation method of a high-efficiency furfural decarbonylation catalyst for preparing furan, which comprises the steps as follows: active Al2O3 with the grain diameter of 1 to 6 mm is used as a carrier, Pd is used as a main active component with the content of 0.25 to 0.5 percent, and Ni and K with the content of 0.25 to 0.5 percent are used as catalytic addition agents. Traditional steeping methods are adopted for preparing the catalyst, and the prepared catalyst can be applied into gas furfural decarbonylation reaction. The results show that the catalyst prepared by the preparation method has better activity, achieves the furfural transformation rate of over 98 percent, and raises the selectivity to over 90 percent from an original level of about 70 percent.

The invention discloses a preparation method and application of a carbon nitride supported chromium monoatom Fenton catalyst, and belongs to the technical field of Fenton catalysts. The technical solution key point is that the carbon nitride supported chromium monoatom Fenton catalyst comprises a heterogeneous solid carbon nitride carrier and an active component metal chromium monoatom supported on the carbon nitride carrier, the catalyst has a porous sheet-like structure, and the chromium monoatoms are uniformly anchored on SA-Cr/g-C3N4. The invention also specifically discloses the preparation method of the carbon nitride supported chromium monoatom Fenton catalyst and the application of the catalyst in catalytic degradation of dye wastewater. According to the method provided by the invention, raw materials required in the preparation process of the catalyst are cheap and easy to obtain, and the catalyst has a high yield, and is suitable for large-scale industrial production; and when the catalyst is used for catalytic degradation of the dye wastewater, the selectivity is 100%, the reaction conditions are mild, the catalyst can be simply washed and recovered for recycling, and the catalyst still maintains better catalytic activity.

The invention discloses a method for recovering rare earth in an ion adsorption type rare earth ore leaching solution through fractional precipitation. According to the method, firstly, a magnesium-containing alkaline compound is added to a purified ion adsorption type rare earth ore leaching solution for a precipitation reaction; and then a calcium-containing alkaline compound is further added for a precipitation reaction, and rare earth precipitation concentrates and precipitation mother liquor are obtained after solid-liquid separation. According to the method, raw materials adopted are cheap and easy to obtain, and the process is simple and easy to control, so that the production cost is lowered; the problem of ammonia and nitrogen pollution in the precipitation process of the ion adsorption type rare earth ore leaching solution is solved; meanwhile, the adding amount of the magnesium-containing/calcium-containing alkaline compound is controlled, so that a precipitant is dissolved fully as much as possible, and the purity of the rare earth precipitation concentrates is improved; in addition, sulfate ions and calcium ions in the leaching solution can form a small amount of calcium sulfate precipitate with the good crystallization property; crystals of rare earth hydrate can be induced, and the problem that the rare earth hydrate is not liable to form a crystal form precipitate can be also solved.

The invention discloses a method for preparing a plant cellulose film by taking a herbaceous plant as a raw material. The method comprises the following steps of: (1) extracting plant cellulose from the herbaceous plant serving as the raw material; (2) uniformly mixing the plant cellulose, an antioxidant and a solvent N-methylmorpholine-N-oxide aqueous solution to obtain a plant cellulose solution; and (3) forming a film by spraying or scraping the plant cellulose solution and performing post-treatment to obtain the plant cellulose film. The method has a simple process and is environmentally-friendly. The prepared plant cellulose film has high mechanical property and biodegradability.

The invention provides a method for synthesizing an anastrozole intermediate-2,2'-(5-methyl-1,3-phenylene)-bis-(2-methyl propionitrile), which comprises the following steps: dissolving a cyanoacetate derivative and 3,5-dihalogenated toluene in a solvent, carrying out decarboxylation cyanomethylation reaction under the action of a palladium catalyst and an organic phosphorus ligand, obtaining a target product, or obtaining 2,2'-(5-methyl-1,3-phenylene)-bis-(acetonitrile), and further being reacted with halogenated methane or methane which is ready to be halogenated in the presence of a strong base hydride, and generating the target product. The method for synthesizing the intermediate can avoid the use of highly toxic cyanide, and has the advantages of cheap price and easy obtainment of raw materials, easy synthesis, no side reactions and high yield.

The invention discloses a method for preparing a nano palladium metal catalyst. The method for preparing the nano palladium metal catalyst comprises the steps of performing functional grafting pretreatment on a carrier, dipping a palladium salt solution, reducing the palladium salt solution to obtain nano metal particles, and finally coating the nano metal particles separately by using an embedding agent to obtain a final solid-supported nano palladium metal catalyst. The method is characterized by comprising functionally grafting the carrier and separately coating a nano metal catalyst; the effect of the method is shown in a grafting effect of a functional additive, so that forming and dispersing of the nano palladium metal particles are facilitated; through the embedding agent, the stability of the catalyst is improved in the process of using a palladium nanoparticle catalyst; the recycling of the catalyst is facilitated, and the catalyst can be reused. The preparation method of the catalyst is simple and convenient, cheap and easily available in raw materials and applicable to industrial production.

A process for synthesizing hexamethylene-1,6-methyl diaminoformate features the ordinary-pressure catalytic reaction between 1,6-hexanediamine and dimethyl carbonate under the action of Pb catalyst. Its advantages are high output rate up to 98% and high selectivity.

The invention relates to a catalyst for esterification and deacidification and a preparation method thereof, which are used for lowering the acid values of high-acid-value crude oil and distillate oil. The catalyst refers to a hydrotalcite or loaded hydrotalcite solid alkali catalyst. The molar ratio of magnesium to aluminum in the hydrotalcite is 1 to 4. Loaded hydrotalcite consists of 70 to 95 mass percent of carrier and 5 to 30 mass percent of active component, wherein the carrier is hydrotalcite; the active component is one of potassium carbonate or potassium nitrate or potassium fluoride or potassium hydroxide or potassium acetate; and the carrier is soaked in aqueous solution which contains the active component, is dried and is calcined at the temperature of between 350 DEG C and 550 DEG C for 2 to 8 hours. Due to the adoption of the catalyst, the defects of easy toxication of an acid catalyst and small specific surface and small pore canal of the conventional alkali metal oxide are overcome, the acid value of the high-acid-value crude oil or distillate oil can be lowered to be below 0.5 mgKOH/g or the deacidification rate is more than 90 percent.

The invention belongs to a preparation method of potassium carbonate, which relates to potassium carbonate. The invention provides the preparation method of the potassium carbonate with less process equipment, low energy consumption and no pollution discharge. The preparation method of the potassium carbonate is that: coal-fired flue gas or limekiln gas, after being washed by water, dust removed and desulfurized, is pumped in ammonia and made into (NH4)2CO3 liquid, and then Ni(OH)2 and KCl are added, NH3 is pumped in, and then Ni(NH3)6Cl2 is separated; after precipitation, K2CO3 ammonia solution is obtained and removed to a vessel, then the obtained solution is pressurized and pumped in NH3 or added with liquid ammonia, the K2CO3 ammonia solution is layered, the upper layer is supersaturated ammonia solution and the lower layer saturated K2CO3 ammonia containing solution; extraction method is adopted to obtain K2CO3 ammonia containing saturated solution; the K2CO3 ammonia containing saturated solution is heated to evaporate and filtered to remove the residue NiCO3 after being deaminated, and then evaporated to dryness, thus K2CO3 product is obtained; the Ni(NH3)6Cl2 is dissolved in water, added with lime and then heated to evaporate and deaminated thoroughly and Ni(OH)2 is filtered from Ni(NH3)6Cl2 solution to be reused, thus the filtrate is condensed to obtain CaCl2 product.

The invention relates to gemini imidazoline-ammonium-salt. A preparation method comprises the following steps: amidating and cyclizing long-chain organic acid and organic polyamine to obtain an imidazoline matrix; then reacting epichlorohydrin and dialkyl amine to obtain an intermediate; finally reacting the imidazoline matrix and the intermediate to obtain the gemini imidazoline-ammonium-salt. The gemini imidazoline-ammonium-salt provided by the invention has the following advantages: (1) raw materials for an asphalt emulsifier are low in cost, the preparation technology is simple, no catalyst is used, and the production cost is low; (2) on the aspect of the design of a molecular structure, a biquaternary ammonium salt structure is introduced into molecules of the emulsifier to improve the water solubility and the emulsion performance of the emulsifier, at the same time, the quantity of cations is increased and the emulsion breaking speed of emulsified asphalt is obviously reduced; (3) the asphalt emulsifier is high in emulsifying capacity for different asphalts, and the prepared emulsified asphalt is even and fine and high in storage stability, can be both used for emulsifying asphalt in a slurry seal and used for emulsifying the asphalt on the micro surface.

The invention discloses a preparation method for an electrode material used for a supercapacitor and the application of electrode material. The preparation method for the electrode material comprises the steps that LiCoO2 and sodium hypophosphite are put in a tube furnace proportionally, the LiCoO2 and the sodium hypophosphite are roasted for 1 to 2 hours under an inert atmosphere and with the temperature ranging from 300 DEG C to 500 DEG C, and the electrode material is acquired when the LiCoO2 and the sodium hypophosphite are cooled; phosphor doping LiCoO2 composite electrode material prepared through the preparation method is applied to the supercapacitor. The preparation method for the electrode material has the advantages that the raw material is cheap and easy to get, the synthetic process is simple and easy to realize, the product quality is stable, and the reception performance of the technology is good; phosphor doping LiCoO2 composite electrode material prepared through the preparation method has an excellent supercapacitor performance.

The invention discloses an integrated super capacitor electrode material preparation method and applications thereof. The preparation method comprises the following steps: cobalt salt, nickel salts, and sulfonium salt are dissolved in a solvent and are uniformly stirred and mixed; the above solution is transferred to a high pressure reaction kettle, and an electrode carrier is put in the kettle; the high pressure reaction kettle is sealed and then placed at a temperature of 100 to 160 DEG C for reaction for 2 to 12 h; and the electrode carrier is washed and dried to obtain the integrated super capacitor electrode material. The invention also provides applications of the above integrated super capacitor electrode material in manufacturing of the super capacitor. Raw materials of the preparation method of the invention are cheap and easy to obtain, the synthesis technology is simple and easy to realize, the product quality is stable, the technology repetition performance is good, and the electrode preparation material has excellent super capacitance performance.

The invention provides a red fluorescent carbon quantum dot, a preparation method and application of the red fluorescent carbon quantum dot, and belongs to the technical field of carbon nanomaterials.The carbon quantum dot is prepared by the steps that: at room temperature, neutral red and anhydrous ethylenediamine are dissolved in water at a mass ratio of (0.001-0.01):(0.15-0.30), the solution is transferred to a hydrothermal reactor and reaction is performed at 150 to 250 DEG C for 2 to 7 hours, and insoluble matters are filtered to obtain a light red solution; the solution is subjected todialysis treatment in a container for at least 3 days in a dialysis bag of 500 to 1,000 Da to obtain a water solution of pure carbon quantum dots; the solution is freeze-dried to obtain a target carbon quantum dot. The preparation method has advantages of simple preparation process, wide source of raw materials and low price, low preparation conditions and environmental friendliness. The preparedfluorescent carbon quantum dots can be used as a fluorescent probe for detection of berberine hydrochloride in Fufanghuangliansu Tablets and blood.

The invention relates to a method for preparing bacterial cellulose by using decayed fruits as raw materials, which comprises the following steps: 1) squeezing the decayed fruits and collecting juice, preparing juice with 2.5-5wt% of total sugar content by pure water and then disinfecting, carrying out membrane filtration and degerming to obtain the treated juice; 2) putting bacterial cellulose in the treated juice to prepare bacterial strain, standing under the temperature of 20-30 DEG C and culturing, or dynamically culturing under the temperature of 20-30 DEG C and the rotating speed of 50-400rpm, culturing for 5-20 days to obtain the bacterial cellulose. The invention has the advantages of simple preparation method, cheap and easy raw material acquisition and low cost, and is suitable for large scale production; the prepared bacterial cellulose has advantages of high output and wide application prospect.

The invention relates to a preparation method of a ZnSn(OH)6 porous photocatalytic material, which belongs to the field of nanometer material preparation and is characterized by comprising the following steps of: 1. mixing water as a solvent with soluble zinc salt, stannic chloride and strong alkali which are used as raw materials and stirring to form a uniform solution; 2. carrying out hydrothermal treatment on the solution for a while at a certain temperature; and 3. separating, washing and drying a product after the hydrothermal treatment at the drying temperature of 20-100 DEG C to finally obtain the ZnSn(OH)6 porous photocatalytic material which is formed by accumulating grains with the grain diameter of smaller than 100nm. The invention has the characteristics of cheap raw materials, simple process, convenient operation, controllable shape and the like, and the prepared ZnSn(OH)6 material has strong adsorption capability and photocatalytic activity and has good application prospect in the field of photocatalysis.

The invention discloses a compounding method for a thioamide compound shown as formula (II). The compounding method comprises the following steps: by taking aldehyde and formyl aliphatic amine as reacting raw materials and taking Na2S.9H2O as a sulfuration reagent, reacting in a water phase under an effect of an oxidizing agent, thereby acquiring the thioamide compound. The compounding method provided by the invention has the advantages that the raw materials are low in cost and are easily acquired, the solvents are green and environment-friendly, the reaction operation is simple, the condition is mild, the substrate is wide in universality, the yield is higher, the functional group tolerance is excellent, the thioamide modification for natural aldehyde and biological active molecule is successively realized, and a method for efficiently constructing the thioamide compound is supplied to the medicinal chemical and biologic orthogonal chemical research.

The invention discloses a 2-(nitrogen heterocycle) benzimidazole complex alkyl aluminum compound, and a preparation method and application thereof. A ligand of the compound is 2-(nitrogen heterocycle) benzimidazole which may be 2-methyl-6-benzimidazole pyridine or 2-methyl-8-benzimidazole quinoline. The preparation method of the invention comprises the following steps of: reacting the 2-(nitrogen heterocycle) benzimidazole ligand with alkyl aluminum in different ratios, and performing concentration and recrystallization to obtain the target compound. The 2-(nitrogen heterocycle) benzimidazolyl-aluminum compound is a high-efficiency lactone ring-opening polymerization catalyst. The 2-(nitrogen heterocycle) benzimidazole complex alkyl aluminum compound has the advantages of readily available materials, simple synthetic route, high product yield, relatively more stable properties, changeful structures of the prepared products, relatively higher catalytic activity and capability of meeting polymerization requirements of different lactones, obtaining poly lactones with high molecular weights and meeting requirements of industrial departments.

The invention provides an organotin-oxygen cluster containing ferrocene pyrazole. The cluster is characterized in that the complexes with the following chemical formulas are prepared from a ligand 3-trifluoromethyl-5-ferrocene pyrazole acetic acid (LCOOH) and monobutyltin oxide, dibutyltin oxide and triphenyltin hydroxide respectively: [BuSnO(OOCL)]6, [Ph4Sn2O(OCH3)(OOCL)]2 and [Bu4Sn2O(OOCL)2]2.The cluster has inhibiting effects on human lung cancer cells (A549), hepatoma cells (HepG2) and mouse melanoma (B16-F10) and the inhibiting effects are obviously superior to the inhibiting effects of the control drugs 5-fluorouracil and cisplatin, so the cluster can be applied to preparing the anti-tumor drugs.

The invention relates to a cubic-phase cobalt-nickel alloy nano-cluster-graphene composite material and a manufacturing method and purpose of the composite material, and belongs to the field of electromagnetic wave absorption materials. The cubic-phase cobalt-nickel alloy nano-cluster-graphene composite material is manufactured with low cost through a simple and fast thermal decomposition method with the good reduction effect. The composite material is good in wave absorbing property. The manufacturing method comprises the following steps that (a), graphite oxide is added to oleylamine and dispersed; (b), acetylacetone, acetylacetone nickel and octadecylamine are added, mixtures are heated to 110 DEG C to 140 DEG C in the inert protective gas atmosphere and are maintained for 20-40 minutes, and then temperature rises to 230 DEG C to 260 DEG C and is maintained for 1.5-2.5 hours; (c), organic solvents are added to suddenly stop the reaction; (d), a reaction product is separated out; (e), the reaction product is optionally washed and dried.