48results about How to "Improve electron donating ability" patented technology

The invention discloses a polycyclic benzothiadiazole non-fullerene acceptor material, a preparation method thereof and an application of the material. The polycyclic benzothiadiazole non-fullerene acceptor material comprises a polycyclic benzothiadiazole center core and electrophilic end groups, the polycyclic benzothiadiazole center core is of a nitrogen bridge trapezoidal polycyclic structure,the electrophilic end groups are connected to two ends of the center core, 4, 7-dibromo-5, 6-binitro benzothiadiazole serves as a raw material in the preparation process, Stille coupling and Vilsmeier-Haack reaction are sequentially performed to obtain the polycyclic benzothiadiazole center core, and end-group structures are introduced by Knoevenagel reaction to obtain the polycyclic benzothiadiazole non-fullerene acceptor material. The acceptor material is good in solubility and easily processed into a film, has a good photoelectric conversion function and is used for preparing an organic solar battery device, and photoelectric conversion efficiency reaches nearly 16% of single battery conversion efficiency.

The invention discloses a dye-sensitized solar cell counter electrode and a production method thereof. The production method thereof includes 1, dissolving cobalt nitrate hexahydrate and 2-methylimidazole with methyl alcohol, then mixing and stirring methanol solutions of the cobalt nitrate hexahydrate and 2-methylimidazole for 20-40 minutes before centrifuging the same, and obtaining ZIF (zeolite imidazole ester skeleton structure structure)-67 by separating, washing and drying the mixture; 2, roasting the ZIF-67 for 2 hs under 600-850 DEG C in the inert gas atmosphere; 3, dissolving the mixture obtained from the step 2 with isopropanol before subjecting the same to ball grinding for 6-8 hs to obtain particulate matters, and spraying and drying the particulate matters on the surface of FTO (fluorine-doped tin oxide) conductive glass. The production method thereof is easy to operate and low in cost, and the dye-sensitized solar cell is high in photoelectric converting efficiency.

The invention provides a fused ring non-fullerene acceptor material, and a preparation method and an application thereof. The fused ring non-fullerene acceptor material comprises an electron donatingunit and electron withdrawing end groups, the electron donating unit is a carbon-oxygen bridge trapezoidal fused ring structure, the electron withdrawing end groups are connected to two ends of the electron donating unit, and the fused ring non-fullerene acceptor material has a structure represented by formula I or formula II. The prepared fused ring non-fullerene acceptor material prepared through the preparation method has excellent light absorption and carrier transport properties, can be easily dissolved in common organic solvents, has strong visible near-infrared absorption property and high electron mobility (being more than or equal to 10<-5> cm<2>.V<-1>.s<-1>), realizes a high short-circuit current and a high energy conversion efficiency in organic solar cells, and has a broad application prospect and high application values.

The invention provides a condensed ring-containing triarylamine compound and an organic light-emitting device thereof, and relates to the technical field of organic photoelectric materials. The condensed ring-containing triarylamine compound has excellent hole transport performance, has the advantages of high luminous efficiency and low driving voltage, is a good hole transport material, and can improve the luminous efficiency of an organic light-emitting device, prolong the service life of the organic light-emitting device and reduce the driving voltage of the device; and the condensed ring-containing triarylamine compound provided by the invention is applied to the organic light-emitting device as a covering layer material, so that the light extraction efficiency can be improved, the light-emitting efficiency of the organic light-emitting device is improved, and meanwhile, the service life of the device can be prolonged. The triarylamine organic compound is simple to synthesize and easy to operate, and can be widely applied to the fields of panel display, lighting sources, organic solar cells, organic photoreceptors or organic thin film transistors and the like.

The invention provides a triarylamine compound, a preparation method thereof and an organic light-emitting device, which relate to the technical field of organic photoelectric materials. The triarylamine compound has an aliphatic ring on benzene or 9-phenyl of fluorenyl, the aliphatic ring has electron donating ability relative to aryl, the electron donating ability of the compound is further enhanced, and the triarylamine compound has excellent steric configuration, effectively controls the crystallinity of a material, and has good thermal stability. The light-emitting efficiency and the service life of the organic light-emitting device can be improved; the driving voltage of the device is reduced; and the triarylamine compound provided by the invention is applied to the organic light-emitting device as a covering layer material, so that the light-emitting efficiency of the organic light-emitting device can be improved, and meanwhile, the service life of the device can also be prolonged. The triarylamine compound is simple to synthesize and easy to operate, and can be widely applied to the fields of panel display, lighting sources, organic solar cells, organic photoreceptors or organic thin film transistors and the like.

The invention relates to a fluoro fused ring benzothiadiazole polymer acceptor material and a preparation method thereof. The fluoro fused ring benzothiadiazole polymer acceptor material comprises a fused ring benzothiadiazole central core unit, fluoro-substituted electron-withdrawing end groups and an aromatic ring connecting unit, wherein the fused ring benzothiadiazole central core is of a nitrogen bridge trapezoidal fused ring structure, the fluoro-substituted electron-withdrawing end groups are connected to the two ends of the central core, and each acceptor unit is in conjugate connection through a simple aromatic ring structure.

The invention provides a triarylamine organic compound and an organic light-emitting device thereof, and relates to the technical field of organic photoelectric materials. According to the invention, triarylamine is taken as a center and connected with a benzo alicyclic group, so that the electron donating ability of the compound is further enhanced, and the compound has the advantages of excellent hole transport performance, high luminous efficiency and low driving voltage, and is a good hole transport material. The triarylamine organic compound provided by the invention is applied to the organic light-emitting device as a covering layer material, and the light extraction efficiency can be improved, so that the light-emitting efficiency of the organic light-emitting device is improved. The triarylamine organic compound disclosed by the invention is good in film-forming property, high in glass transition temperature (Tg), relatively good in stability, simple in synthesis and easy to operate, and can be widely applied to the fields of panel display, lighting sources, organic solar cells, organic photoreceptors or organic thin film transistors and the like.

The invention relates to a fused ring benzoselenadiazole non-fullerene acceptor material as well as a preparation method and application thereof. The fused ring benzoselenadiazole non-fullerene acceptor material has a structure represented by a formula 1, wherein R1 is C1-C20 alkyl; Ar is an electron-donating polycyclic aromatic hydrocarbon based on benzene or thiophene; EG is an electron withdrawing group based on rhodanine or dicyanomethylidene indan-1-one; the condensed ring benzoselenadiazole non-fullerene acceptor material comprises a condensed ring benzoselenadiazole central core and electron withdrawing end groups, the condensed ring benzoselenadiazole central core is of a nitrogen bridge trapezoidal condensed ring structure, and the electron withdrawing end groups are connected tothe two ends of the central core.

The invention relates to a hydrocalumite derived cobalt-based catalyst for hydrogen production by autothermal reforming of acetic acid. Directed at the problem that catalyst structure change and the oxidation and sintering of active components can cause catalyst deactivation in existing catalysts during the autothermal reforming reaction of acetic acid, the invention provides a new catalyst characterized by stable structure, sintering resistance, oxidation resistance, carbon deposition resistance, and high activity. The molar composition of the catalyst is (CaO)a(CoO)b(AlO1.5) c, wherein a is1.66-5.19, b is 0.34-0.81 and c is 1.0. The invention adopts coprecipitation method to prepare a catalyst precursor, and then roasting is carried out to obtain the Ca-Co-Al-O mesoporous composite oxide. The catalyst takes calcium oxide as the framework, contains cobalt-alumina spinel phase and a small amount of Ca12Al14O33, inhibits the acidity of the catalyst, improves the carbon deposition resistance and sintering resistance of the catalyst, and improves the activity of hydrogen production by autothermal reforming of acetic acid.

The invention provides a thermally activated delayed fluorescent molecular material and a synthesis method thereof, and an organic electroluminescent device. The thermally activated delayed fluorescent molecular material comprises an electron donor and an electron acceptor, wherein the electron acceptor contains an indenyl. By substituting the phenyl in diphenylamine or triphenylamine in a donor molecule with indenyl, the electron donating ability of the donor can be increased, and the non-radiative transition rate can be effectively suppressed, thereby increasing the molecular photoluminescence quantum yield (PLQY), also increasing the torsion angle between the electron donor and the electron acceptor, at the same time reducing the electron cloud overlapping between a highest occupied molecular orbital (HOMO) and a lowest unoccupied molecular orbital (LUMO), and accordingly acquiring small delta EST.

The invention relates to a preparation method and application of a novel monatomic titanium catalyst and belongs to the technical field of monatomic electro-catalysis. The preparation method comprises the following steps: carrying out ultrasonic dispersion on graphite oxide and isopropanol, and adding an isopropanol solution of organic metallic titanium salt while stirring, so as to obtain a mixed solution, wherein the concentration of graphite oxide in isopropanol is 1mg / mL-5mg / mL, and the mass ratio of organic metallic titanium salt to graphite oxide is (0.1-3) to 100; further carrying out ultrasonic dispersion on the mixed solution for 1-5 hours, and stirring for 2-20 hours; carrying out centrifugal separation on mixed liquid obtained through reaction so as to obtain precipitates, and carrying out vacuum drying; and thermally processing obtained solid powder at 400-900 DEG C in an inert atmosphere, carrying out constant-temperature processing for 70-300 minutes, and cooling to the room temperature, so as to obtain the novel monatomic titanium catalyst. The preparation method is simple in operation and low in cost, and an assembled dye-sensitized solar cell is relatively high photoelectric conversion efficiency and is a very potential substitute material for a counter electrode of the assembled dye-sensitized solar cell.

The invention provides a thermally activated delayed fluorescence molecular material, a synthesis method thereof, and an electroluminescent device. Through synthesizing a thermally activated delayed fluorescence molecule containing a indolobenzo selenium-heteroaromatic aromatic ring donor, the electron donating ability of the donor is enhanced, and the rate of nonradiative jump can be effectivelyinhibited, thus increasing the luminescence quantum yield (PLQY) of the molecule, and increasing the torsion angle between the electron donor and an electron acceptor while reducing electron cloud overlap between the highest occupied molecular orbit (HOMO) and the lowest occupied molecular orbit (LUMO), resulting in a smaller [delta]EST. The electroluminescent device adopts the thermally activateddelayed fluorescence molecular material, and has a high luminous efficiency and long service lifetime.

The invention relates to a novel macro-molecular corrosion inhibitor and a preparation method thereof, especially to the novel macro-molecular corrosion inhibitor capable of reducing the surface corrosion rate of metal and improving the corrosion resistance of an oil refining apparatus, and the preparation method thereof, belonging to the field of corrosion protection of metal materials. The novel macro-molecular corrosion inhibitor employs hydrogen-containing linear polydimethylsiloxane and benzothiazole derivatives as basic raw materials and is prepared through reaction at certain temperature and under the action of a certain catalyst and other conditions. Compared with the prior art, the prepared macro-molecular corrosion inhibitor has higher application temperature and stronger adsorption and film-forming stability; a film formed by the macro-molecular corrosion inhibitor has better hydrophobicity and insulating properties, presents better protection effect, is lower in usage amount and has good continuous corrosion resistance; and the macro-molecular corrosion inhibitor is a novel high-efficiency surface corrosion inhibitor for metal.

The invention discloses a hydroxyquinolinyl metal organic small molecule cooperation compound material grafted with perylene diimide and aromatic groups, a preparation method and applications thereof.According to the invention, the hydroxyquinolinyl metal organic small molecule cooperation compound material grafted with perylene diimide and aromatic groups is obtained through a Stille coupling reaction and a metal coordination reaction; the metal organic small molecule cooperation compound belongs to branched small molecules, the structure of the metal organic small molecule cooperation compound uses a metal as a core, and a branched chain contains hydroxyquinoline and a perylene diimide and electron-donating aromatic group unit; hydroxyquinoline has high electron withdrawing capacity, the grafted perylene diimide unit is beneficial to improving the crystallization capacity and the electron affinity of small molecules, the electron donating capacity is enhanced by linking the electrondonating aromatic group to the perylene diimide unit, and the push-pull electron effect is easily formed with the hydroxyquinoline; and the structure small molecule and the polymer donor form energylevel matching, so that the structure small molecule is suitable for being used as a small molecule acceptor material.

The invention discloses a brush plating-based surface enhanced Raman spectrum SERS silver-plated active substrate and a preparation method thereof, and relates to the technical field of Raman spectrumdetection. The brush plating process is combined with the preparation process of the surface-enhanced Raman spectrum silver-plated active substrate, and the nucleation mechanism of silver crystal grains is converted into the instantaneous nucleation mechanism according to the preparation requirements of the surface of the surface-enhanced Raman spectrum silver-plated active substrate, that is a silver crystal nucleus generation accelerant is added into the prepared brush plating working solution, so that the nucleation quantity in unit time is increased, fine grains are facilitated to be achieved, and all of the best working parameters of the electric brush plating technology are further obtained; and the surface-enhanced Raman spectrum SERS silver-plated active substrate with nano-sizedsilver particles and good uniformity is prepared by a simple preparation process, so that the technical problems of poorer sensitivity and stability of a Raman spectrum metal active substrate in SERSdetection can be solved, and the technical effect of improving the sensitivity and stability of the Raman spectrum metal active substrate in SERS detection is achieved.

The invention provides novel iridium metal complex and a preparation method thereof, and an electroluminescence device. By selecting special ligands of heterocyclic rings, wavelength of compound is adjusted to obtain organic metal compound. After the organic metal compound is used for the organic electroluminescence device, lighting efficiency of the device is increased, and service life is prolonged.

The invention relates to a modified polysiloxane corrosion inhibitor composition and a preparation method thereof and belongs to the field of metal material corrosion prevention. The modified polysiloxane corrosion inhibitor composition contains hydrogen polydimethylsiloxane, a 2-vinyl indole derivative, a platinum catalyst and a solvent. The modified polysiloxane corrosion inhibitor composition is prepared in such a way that the hydrogen polydimethylsiloxane and the 2-vinyl indole derivative react as basic raw materials at a certain temperature in the presence of the catalyst. Compared with the prior art, the modified polysiloxane corrosion inhibitor composition has higher applicable temperature and higher adsorption film forming stability; a film formed by the modified polysiloxane corrosion inhibitor composition has better hydrophobicity and insulativity and a better protective effect; and the modified polysiloxane corrosion inhibitor composition is low in usage amount and high in continuous corrosion resistance and is a novel efficient metal surface corrosion inhibitor.

The invention provides a method and a device for removing nitrate nitrogen pollutants by intensifying iron-carbon micro-electrolysis through a low-intensity magnetic field, and belongs to the technical field of denitrification. Under the action of a low-intensity magnetic field, microorganisms are inoculated on an iron-carbon carrier, nitrate-nitrogen-containing inlet water is introduced, iron-carbon micro-electrolysis corrosion hydrogen evolution and iron-carbon micro-electrolysis autotrophic denitrification are carried out, and nitrate-nitrogen-removed outlet water is obtained. Iron-carbon micro-electrolysis autotrophic denitrification is carried out under the condition of a low-intensity magnetic field, the activity of microorganisms and related enzymes can be improved, the corrosion potential of an iron-carbon carrier can be reduced, the iron-carbon micro-electrolysis corrosion hydrogen evolution rate is increased, the precipitation position and the precipitate attribute can be changed through the Lorentz force and the magnetic field gradient force effect, therefore, the formation of an iron-carbon carrier passivation film is relieved, and the nitrate nitrogen removal effect of microorganisms is effectively improved.

The invention provides a novel iridium metal complex and a preparation method thereof and an electroluminescent device. According to the novel iridium metal complex, a specific heterocyclic ligand combination is selected, the wavelength of a compound is adjusted, and an obtained organic metal compound is used for an organic electroluminescent device, so that the luminous efficiency of the device is improved, and the service life is long.

The invention discloses a condensed-ring benzothiadiazole non-fullerene acceptor material, a preparation method and application thereof. The fused-ring benzothiadiazole non-fullerene acceptor material includes a fused-ring benzothiadiazole central core and an electron-withdrawing end group. The base is connected to both ends of the central core, and the preparation process is to use 4,7-dibromo-5,6-dinitrobenzothiadiazole as a raw material, and sequentially obtain a condensed ring benzene through Stille coupling and Vilsmeier-Haack reaction The benzothiadiazole central core is introduced into the end group structure through the Knoevenagel reaction to obtain the fused-ring benzothiadiazole non-fullerene acceptor material. The acceptor material has good solubility, is easy to process into a film, and has good photoelectric conversion function, and is used for preparing an organic solar battery device, and the photoelectric conversion efficiency reaches nearly 16% of a single cell conversion efficiency.

The invention belongs to the field of organic photoelectric materials, and particularly relates to a near-infrared organic photoelectric molecular material based on 3-alkoxy-4-cyano thiophene as well as a preparation method and application of the near-infrared organic photoelectric molecular material. A 3-alkoxy-4-cyano thiophene structure is used for constructing a near-infrared organic photoelectric acceptor molecule, alkoxy and a central unit part form a strong electron donating conjugation effect, cyano and a terminal unit form a strong electron withdrawing conjugation effect, and the electron donating ability of the alkoxy and the electron accepting ability of the cyano and the terminal unit can be improved at the same time. Alkoxy and cyano are used for modifying a molecular skeleton structure, so that the dielectric constant of molecules can be effectively improved, the dissociation of excitons in a photoelectric process is facilitated, and the generation efficiency of free charges is improved. And the film is easily dissolved in common organic solvents, so that a high-quality film can be prepared by a solution spin-coating method. The absorption spectrum range of the prepared organic photoelectric molecular film exceeds 1.2 microns, and the organic photoelectric molecular film shows excellent performance when applied to organic photoelectric detectors.

The invention relates to a multi-active adsorption center corrosion inhibitor composition and a preparation method thereof. The corrosion inhibitor composition comprises hydrogen-containing polydimethylsiloxane, a vinyl pyridine compound, aniline hydrochloride, a chloroplatinic acid ethanol solution, a basic catalyst, a solvent A and a solvent B. The corrosion inhibitor composition disclosed by the invention is obtained by grafting vinylpyridine and hydroxyaniline substituent groups with high adsorptivity on metal surfaces by taking the linear hydrogen-containing polydimethylsiloxane as a basic raw material at a certain temperature and under the action of the catalyst. Compared with the prior art, the corrosion inhibitor composition has the advantages of relatively high application temperature, relatively high adsorption film-forming stability, low amount and good lasting corrosion resistance, and is a novel efficient metal surface corrosion inhibitor.

The invention provides a fused-ring non-fullerene acceptor material and its preparation method and application. The fused-ring non-fullerene acceptor material includes an electron-donating unit and an electron-withdrawing terminal group, and the electron-donating unit is a carbon-oxygen Bridge-ladder fused ring structure, the electron-withdrawing end group is connected to both ends of the electron-donating unit, and the fused-ring non-fullerene acceptor material has a structure shown in formula I or formula II, through the preparation method of the present invention The prepared fused-ring non-fullerene acceptor material has excellent light absorption and carrier transport properties, is easily soluble in common organic solvents, has strong visible and near-infrared light absorption properties, and high electron mobility (≥10 ‑5 cm 2 ·V ‑1 ·s ‑1 ), which can achieve high short-circuit current and energy conversion efficiency in organic solar cells, and has broad application prospects and high application value.

The present invention provides D-A type small molecule compound having the structure shown in formula I, formula II or formula III, with phenothiazine as electron-donating group, with malononitrile, 2-ethylhexyl cyanoacetate or 2‑ethylrhodanine as an electron-withdrawing group. In the present invention, there is a phenomenon of internal charge transfer in the small molecules of the D-A structure, which helps to improve the absorption performance of the material; the electron-withdrawing group can adjust the energy level of the small molecule combination of the material to obtain good performance Narrow-band photovoltaic materials. Moreover, phenothiazine itself has moderate steric deformability and the introduction of side chain alkyl makes it have a non-planar geometric configuration. The N and S atoms on the phenothiazine unit help to enhance the electron donation of the main chain of the molecule. ability. Experimental results show that the solar cell device including the D-A type small molecule compound layer provided by the present invention has a relatively high photoelectric energy conversion efficiency of about 2.8%.

The invention relates to a novel corrosion inhibitor composition and a preparation method thereof. The corrosion inhibitor composition comprises hydrogen-containing polydimethylsiloxane, a benzotriazole derivative, an alkaline catalyst and a solvent. The preparation method of the corrosion inhibitor composition comprises the following steps: under nitrogen protection and continuous stirring conditions, adding the hydrogen-containing polydimethylsiloxane into the solvent, heating up to 75-80 DEG C, continuing to heat up to 90-100 DEG C after the hydrogen-containing polydimethylsiloxane is dispersed uniformly, adding the benzotriazole derivative and the alkaline catalyst after the temperature is stable, fully reacting for 1-8 hours, removing the solvent from the reaction mixture, and filtering to obtain the product, namely the corrosion inhibitor composition. Compared with the prior art, the corrosion inhibitor product provided by the invention has a higher applicable temperature, stronger film forming stability, low use amount and good continuous corrosion resistance, and is a novel and efficient metal surface corrosion inhibitor.

The invention provides a nano material. The nano material comprises a ZnO nano material and doping elements doped in ZnO crystal lattices, and the doping elements are an Er element and a Yb element. According to the nano material provided by the invention, through co-doping of the Er element and the Yb element, the electron transmission capability of the ZnO nanometer material is improved, and when the ZnO nano material is used as an electron transmission layer of a quantum dot light-emitting diode, effective compounding of electrons and holes in a quantum dot light-emitting layer can be promoted, so that the influence of exciton accumulation on the performance of a device is reduced, and the light-emitting efficiency of the quantum dot light-emitting device is improved.

The invention relates to a hydrocalumite derived cobalt-based catalyst for hydrogen production by autothermal reforming of acetic acid. Directed at the problem that catalyst structure change and the oxidation and sintering of active components can cause catalyst deactivation in existing catalysts during the autothermal reforming reaction of acetic acid, the invention provides a new catalyst characterized by stable structure, sintering resistance, oxidation resistance, carbon deposition resistance, and high activity. The molar composition of the catalyst is (CaO)a(CoO)b(AlO1.5) c, wherein a is1.66-5.19, b is 0.34-0.81 and c is 1.0. The invention adopts coprecipitation method to prepare a catalyst precursor, and then roasting is carried out to obtain the Ca-Co-Al-O mesoporous composite oxide. The catalyst takes calcium oxide as the framework, contains cobalt-alumina spinel phase and a small amount of Ca12Al14O33, inhibits the acidity of the catalyst, improves the carbon deposition resistance and sintering resistance of the catalyst, and improves the activity of hydrogen production by autothermal reforming of acetic acid.

The invention relates to a silicon-based macromolecular composite corrosion inhibitor and a preparation method thereof, in particular to a silicon-based macromolecular composite corrosion inhibitor capable of reducing the corrosion rate of a metal surface and improving the corrosion resistance of an oil refinery, and a preparation method thereof. It belongs to the field of corrosion protection of metal materials. A silicon-based macromolecular composite corrosion inhibitor in the present invention is obtained by reacting hydrogen-containing linear polydimethylsiloxane and pyrazole derivatives under conditions such as a certain temperature and a catalyst. Compared with the existing technology, this product has a higher applicable temperature and stronger adsorption film formation stability, and the film formed has better hydrophobicity and insulation, better protection, low dosage, and good continuous corrosion resistance. A new and efficient metal surface corrosion inhibitor.