1149 results about "Divalent" patented technology

A photobase generator includes a compound including: first skeletons represented by the following formula (a); and a second skeleton including nitrogen atoms bonding to bonding positions of the first skeletons to form amide groups, wherein, in a molecule, a number of the first skeletons is two or more, a number of the nitrogen atoms, configuring the amide groups, in the second skeleton is the same as the number of the first skeletons, and at least one of the nitrogen atoms configuring the amide groups is converted into a nitrogen atom configuring a secondary amine or a tertiary amine by light irradiation. In the formula (a), G is a divalent aromatic group, and * represents the bonding position with the nitrogen atom.

A surface treatment agent containing a hydrocarbon-terminal-group-containing compound of the following formula makes it possible to form a cured film that is exceptional in water repellency, slipperiness, dirt removability, and abrasion resistance, particularly steel wool abrasion resistance and wet abrasion resistance. (R1 is a C12-80 monovalent hydrocarbon group that includes a C12 or higher monovalent or divalent linear unsubstituted aliphatic saturated hydrocarbon group and does not contain a hydrocarbon branched structure, R2 is H, a halogen atom, a hydroxyl group, a siloxy group, an -OSi(CH3)3 group, an -OSi(C2H5)3 group, an amino group, an SH group, a monovalent hydrocarbon group, R1, -V-Z-(Y-A)m, or -Y-A, U is a single bond, C, or a trivalent or tetravalent organic group, V is a single bond or a divalent hydrocarbon group, Z is a single bond, C, Si, N, S, or a trivalent to octavalent organic group, Y is a single bond or a divalent hydrocarbon group, A is a monovalent reactive group, k is 0, 1, or 2, and m is 1-7.)

The invention relates to a composite additive for an all-vanadium redox flow battery electrolyte and a preparation method and application thereof, the composite additive comprises an organic ligand, organic sulfonate, phosphate and halide, and the molar ratio of the organic ligand to the organic sulfonate to the phosphate to the halide is 1: (1-2): (1-2): (1-10). Through the synergistic effect of the four added components, the precipitation problem of divalent vanadium ions under a low-temperature condition and pentavalent vanadium ions under a high-temperature condition is remarkably improved, the high-temperature stability of the positive electrode electrolyte and the low-temperature stability of the negative electrode electrolyte of the all-vanadium redox flow battery are effectively improved, the service life of the battery is prolonged, and the service life of the battery is prolonged. Meanwhile, through the synergistic effect of the four effective components, the use amount of the additive is reduced, and the use cost of the additive is reduced.

Provided are cobalt ferrite particles having a micrometer-order average particle diameter and similar particle diameters. The cobalt ferrite particles are obtained by a method for producing cobalt ferrite particles, including performing a thermal treatment on an aqueous solution containing a divalent iron salt and a divalent cobalt salt stabilized by a complexing agent (ferrite precursor).

The invention discloses a multi-network anti-freezing hydrogel electrolyte, a preparation method thereof and application of the multi-network anti-freezing hydrogel electrolyte in an electrochemical device. The hydrogel is prepared by using polyvinyl alcohol (PVA) and polyacrylamide (PAM) to form a basic network skeleton, introducing phytic acid, ethylene glycol and lithium / zinc bimetal salt (Li2SO4 / ZnSO4), and carrying out thermal initiation polymerization and freeze thawing. The hydrogel prepared by the invention has a multiple physical cross-linked network formed by polymer molecular chain entanglement, hydrogen-bond interaction among functional groups and metal coordinate bonds constructed between phosphate groups and divalent metal ions, so that the hydrogel electrolyte has excellent mechanical properties. Due to introduction of ethylene glycol, formation of ice crystals is effectively inhibited, and the hydrogel is endowed with excellent anti-freezing performance; the high-concentration Li < + > and Zn < 2 + > ensure the high ionic conductivity. The supercapacitor assembled by using the hydrogel electrolyte shows relatively high specific capacitance and good capacitance retention rate under bending and freezing conditions, and has good electrochemical properties and safety performance.

This resist composition contains: a resin component (A1), the solubility of which in a developer solution changes due to the action of an acid; and a compound (D0) represented by general formula (d0-1). In the formula, Ar is an aromatic ring; OH is a hydroxy group; Xd01 is an iodine atom, a fluorine atom, a bromine atom, or a fluorinated alkyl group; Ld is a single bond or a divalent linking group; Z+ is S+ or I+; and Xd02 is an iodine atom, a fluorine atom, a bromine atom, or a fluorinated alkyl group. [Chemical formula 1]

Intermolecular interactions and molecular chain mobility are improved when a hydrocarbon-terminal-group-containing compound represented by formula (1) is used as a surface protective agent for a non-fluorine-based material, and a surface treatment agent containing the compound can form a cured coating film having excellent water repellency, slipperiness, ease of soil removal, and abrasion resistance, in particular, steel wool abrasion resistance. (R is a C1-60 monovalent hydrocarbon group, Z is a divalent connecting functional group containing at least one selected from O, N, S, and Si, Y is a C1-30 divalent hydrocarbon group, A is a monovalent reactive group, and k is 1-3.)

The present invention relates to a sodium ion battery comprising a positive electrode composition having improved battery performance and moisture and air stability. The positive electrode composition has the general formula NaxAzNiiMyMnjTikSbfO2, where A is an alkali metal or alkaline earth metal selected from Ca, Li, M is a divalent element or trivalent element selected from Fe, Mg, Zn, Cu, Al, Co, and Ni is a divalent element, Mn, Ti are tetravalent elements, and Sb is a pentavalent element / trivalent element, where (i + j + k + f + y = 1), 0.7 < = x < = 1, 0 < = z < = 0.2, 0.1 < = i < = 0.6, 0 < = y < = 0.5, 0.1 < = j < = 0.5, 0.05 < = k < = 0.4, and 0 < = f < = 0.2. The invention is suitable for energy storage application.

The invention relates to the technical field of saline-alkali soil improvement, in particular to a compound conditioner for treating sulfate type saline-alkali soil and application of the compound conditioner. The compound conditioner is formed by compounding hydrotalcite, acidic zeolite and humic acid; wherein the hydrotalcite is nitrate intercalated MgAl-LDH or MgFe-LDH, and the molar ratio of divalent metal ions to trivalent metal ions of the hydrotalcite is (2: 1)-(4: 1); the acidic zeolite is clinoptilolite treated by a nitric acid solution; the humic acid is mineral source humic acid, and the purity of the humic acid is greater than 80%. The compound conditioner disclosed by the invention can mineralize Na < + > and SO4 < 2-> which are too high in content in saline-alkali soil, reduce the salt content and pH and prevent plants from osmotic stress and alkaline toxicity; the content of nitrate nitrogen and organic matters in soil is increased, and nutrient substances are provided for plants; the soil structure is improved, the water-retaining property and the air permeability are enhanced, the soil bulk density is reduced, and plant germination and root growth are facilitated.

The invention discloses a gamma-polyglutamic acid and hydrophilic polysiloxane composite material and application thereof, and belongs to the technical field of medical antibacterial coating materials. The gamma-polyglutamic acid and hydrophilic polysiloxane composite material is prepared from a hydrophilic polysiloxane aqueous solution and a gamma-polyglutamic acid aqueous solution through an ionic cross-linking reaction, the hydrophilic polysiloxane is prepared by sequentially carrying out click chemical reaction and ionization modification on polysiloxane with a side chain containing vinyl and a sulfydryl-containing compound; the sulfydryl-containing compound also contains a carboxylic acid group or an amino-terminated group; when the sulfydryl-containing compound further contains carboxylic acid groups, the raw materials of the ionic cross-linking reaction further comprise an aqueous solution containing divalent metal cations. The composite material has low swelling rate and good antibacterial performance, and can be used for long-acting stable antibacterial. As an antibacterial coating, the composite material is suitable for the surfaces of medical apparatuses and instruments made of different materials, and has a wide application prospect.

The present invention is an addition-curable silicone composition containing components (A) to (C): (A) An addition reaction product of an organopolysiloxane represented by formula (1) and a compound represented by formula (2), the addition reaction product having two addition-reactive carbon-carbon double bonds per molecule. (1) (R1 is a C1-12 monovalent hydrocarbon group, R2 is a methyl group or a phenyl group, a is an integer of 0-50, and b is an integer of 0-300. ), (2) (R3 represents a C1-12 divalent hydrocarbon group.), (B) an organosilicon compound having a hydrogen atom bonded to at least two silicon atoms per molecule, and (C) a hydrosilylation reaction catalyst. Thus, provided are an addition-curable silicone composition that has high transparency and a high refractive index and yields a cured product having high strength and high elongation and a highly reliable optical semiconductor device sealed by a cured product thereof.

The invention relates to the technical field of radionuclide separation, in particular to an Eu (III) / An (III) separation method based on a zirconium phosphonate-based metal organic framework adsorbent, which comprises the following steps: adding the zirconium phosphonate-based metal organic framework adsorbent into an Eu (III) and / or An (III) nuclide-containing aqueous solution with the acid concentration of 0.001-3M to carry out adsorption reaction, and then carrying out solid-liquid separation, wherein the zirconium phosphonate-based metal organic framework adsorbent is a zirconium phosphonate-based metal organic framework material exchanged by metal cations M; the metal cation M is selected from one of alkali metal ions, alkaline earth metal ions or divalent transition metal ions. According to the invention, the interlayer chemical properties of the material are regulated and controlled through ion exchange, so that the adsorbent has ultrahigh selectivity, rapid adsorption kinetics, high adsorption capacity and excellent structural stability on trivalent actinide / simulated nuclides in extremely high-acid, high-salt and intense-radiation environments; the key problems of low separation efficiency and poor stability in a high-acid complex system in the prior art are solved, and the method is suitable for treating high-level liquid waste.

The invention relates to a rapid biosynthesis method and antibacterial application of a photo-thermal nano material (Cu, Co) Se2. The method comprises the following steps: step 1, culturing dissimilatory metal reducing bacteria in a culture medium to a platform earlier stage, and activating; 2, the activated dissimilatory metal reducing bacteria are inoculated into an anaerobic culture medium, then bivalent copper salt and selenite are added, and Cu2-xSe nanoparticles are synthesized through a reaction under the anaerobic condition; wherein x is equal to 0-1; 3, divalent cobalt salt continues to be added under the anaerobic condition, thalli are separated into supernate through differential centrifugation, sediment is collected, and (Cu, Co) Se2 nanoparticles are obtained; step 4, carrying out cell disruption treatment on the (Cu, Co) Se2 nanoparticles; the light absorption range and intensity of the original selenide are improved, the photo-thermal efficiency of the selenide is enhanced, and the photo-thermal metal nano material (Cu, Co) Se2 can be efficiently, rapidly and controllably synthesized by the synthesis method.

The invention belongs to the technical field of fuel cells, and discloses a metal organic framework material with proton conductivity and a preparation method and application thereof. Pyrazolo [3, 4-c] pyridine is used as a ligand, a binuclear cuprous cluster is used as a connection point, a two-dimensional layered structure is constructed through the ligand and the binuclear cuprous cluster, a cuprous multi-nitrogen heterocyclic metal organic framework is formed, the cuprous multi-nitrogen heterocyclic metal organic framework is oxidized, and the cuprous multi-nitrogen heterocyclic metal organic framework is obtained. Divalent copper ions and monovalent copper ions exist in the oxidized cuprous multi-nitrogen heterocyclic metal organic framework, and the metal organic framework material with proton conductivity is obtained. The proton conductivity of the metal organic framework material can be remarkably improved by adopting a metal post-synthesis modification oxidation technology, and the proton conductivity of the metal organic framework material is comparable with that of commercial Nafion, and an oxidized sample shows extremely high chemical stability; the problem of poor stability of a non-fluorinated hydrocarbon polymer proton exchange membrane and inorganic solid acid researched in the prior art is solved.

The invention belongs to the technical field of new materials, and particularly relates to two zinc-based complexes as well as a preparation method and application thereof. The chemical general formulas are respectively [Zn2 (TMTA) (COO) (BPA) 2] n (UPC-198) and [Zn2 (TMTA) (COO) (BPE) 2] n (UPC-199), Zn is a divalent zinc ion, TMTA is a deprotonated 4, 4 ', 4' '-(2, 4, 6-triphenyl-1, 3, 5) tribenzoic acid ligand, BPA is 1, 2-bis (4-pyridyl) ethane, and BPE is 1, 2-bis (4-pyridyl) ethylene. Wherein the structure of the zinc-based complex belongs to a triclinic system and a P-1 space group, and the unit cell parameters of UPC-198 are as follows: the axial length # imgabs 0 #, the axial angle alpha is equal to 69.247 (3), the beta is equal to 88.215 (3), the gamma is equal to 68.462 (3), and the unit cell volume # imgabs 1 # Z is equal to 35. The unit cell parameters of the UPC-199 are as follows: the axial length # imgabs2 #, the axial angle alpha is equal to 69.029 (3), the beta is equal to 88.481 (3), the gamma is equal to 68.694 (4), and the unit cell volume # imgabs3 # Z is equal to 35. The zinc-based complex can be used for preparing an adsorption material, an antibacterial material, a catalytic material, a photoelectromagnetic material and a drug carrier material, belongs to a metal-organic framework structure, and is a composite functional porous material with great potential. The zinc-based complex can be applied to the field of low-carbon hydrocarbon gas separation.

The present invention provides a compound represented by the following formula (1) wherein R1 is a monovalent group containing one or more Si atoms to which neither a hydroxyl group nor a hydrolyzable group is directly bonded, X1 is a divalent organic group including an alkylene group having 11 or more carbon atoms, and RSi is a monovalent group containing a Si atom to which a hydroxyl group or a hydrolyzable group is bonded.         R1-X1-RSi     (1)

The invention relates to a metal ion regulation-based ayu pectin gel forming method and application thereof. The method comprises using monovalent or divalent metal ions (such as Ca < 2 + >, Mg < 2 + >, Na < + >, K < + > and the like) to regulate the formation of the Ayu pectin gel. The preparation method comprises the following specific preparation steps: firstly, dissolving Aiyu pectin in deionized water, and uniformly stirring to prepare a pectin solution; then adding a required metal ion solution, and regulating and controlling the concentrations of different metal ions, so that the metal ions interact with pectin molecules; and standing the mixed solution at room temperature for a certain time, and inducing to form stable pectin gel. The method has the advantages that crosslinking of pectin molecular chains is regulated and controlled through metal ions, and the mechanical property and the water holding capacity of the gel can be remarkably improved; in addition, extra energy input is not needed, and the preparation process is simple, efficient, environment-friendly and green; the finally formed pectin gel has good thermal stability and structural strength, and is suitable for food, health care products and other fields.

The application provides a solid-state electrolyte, the chemical formula of the solid-state electrolyte is: A(Li (3+x+2y) Zr (2‑x‑2y) M x N y Si2PO 12 )B(Li3La(PO4)2), wherein A+B=1, 0<=x<=0.5, 0.1<=y<=0.3, M is a trivalent metal ion, and N is a divalent metal ion. The application has the beneficial effects that the solid-state electrolyte has high ionic conductivity, and the battery prepared from the solid-state electrolyte has high battery capacity and service life.

Provided is a resist composition which generates an acid upon exposure to light, and the solubility of which with respect to a developer solution is changed by the action of the acid. The present invention employs the resist composition containing a compound (D0) that is represented by general formula (d0). In the formula, Rar represents an aromatic ring which may have a substituent. R01 represents a chain saturated hydrocarbon group having 1 to 10 carbon atoms. R02 represents a hydrogen atom or an optionally substituted chain saturated hydrocarbon group having 1 to 10 carbon atoms. R03 represents a halogen atom. j represents an integer of 1 or more, valence permitting. k represents an integer of 1 or more, valence permitting. Yd0 represents a divalent linking group or a single bond. m represents an integer of 1 or more, and Mm+ represents an organic cation having a valence of m.

The application discloses a preparation method of layered double hydroxide based on waste incineration fly ash, and comprises the following steps: S1, waste incineration fly ash and leaching solution are added into a mixing container according to a liquid-solid ratio (3-15):1, and leaching is carried out after sufficient mixing, and then a filtrate is obtained after filtration; S2, an aluminum-containing reagent is added into the filtrate obtained in S1, so that the ratio of divalent cations to trivalent cations in the solution is (1.5-2.5):1, the pH range of the solution is adjusted to 10-12, and a mixed suspension is obtained after sufficient stirring; S3, the mixed suspension obtained in S2 is poured into a hydrothermal reaction kettle, and is aged and crystallized through hydrothermal reaction; and S4, the mixed solution after crystallization and aging in S3 is filtered, washed with water, and dried, so that the obtained solid is the layered double hydroxide. The method has the advantages of simple process, easy realization, low requirement on equipment, and universality, can be used for synergistic treatment of other aluminum-containing waste liquid, and the product can be used for heavy metal adsorption, so that the waste incineration fly ash can be fully utilized.

The invention discloses a method for measuring the content of ferric ions in an iron-chromium flow battery electrolyte, which comprises the following steps: before the content of the ferric ions is measured, pretreating the electrolyte to be measured to remove the influence of Cr ions and other impurity ions in the electrolyte on an experimental result, and then titrating with a sodium thiosulfate standard solution; the method has the advantages that the method is suitable for directly measuring the content of the ferric ions under the coexistence condition of a large amount of ferrous ions, the problems that in the prior art, when a large amount of ferrous ions and a trace amount of ferric ions coexist, the error is large, and the accuracy is low are solved, and a technical guarantee is provided for capacity recovery and efficiency improvement of the electrolyte of the flow battery.

Compound of Formula I,is provided. In Formula I, rings A, B, C, and D are 5- or 6-membered rings; each of X1-X5, X21-X22, and Z1-Z3 is C or N; each of L1, L2, and L3 is selected from a direct bond or a divalent linker; each of a and b is 0 or 1; Y is O, S, Se, or NRY; W is O, S, NRW, C═RW, or CRWRW′; up to 1 of Z1 to Z3 is N; each R, R′, RA, RB, RC, RD, RY, RW, and RW′ is hydrogen or a substituent. Formulations, OLEDs, and consumer products containing the same are also disclosed.

The composition includes an acrylic monomer having a carboxylic acid group, an acrylic monomer having a hydroxyl group, at least one of an alkyl acrylate or alkyl methacrylate, and from 15 to 22 percent by weight of a compound composed of divalent segments L and at least two X groups. The divalent segments L are represented by formula L. Each segment L is independently directly bonded to two secondary N atoms, two tertiary N atoms, or a secondary and a tertiary N atom. Each R1 represents an alkylene group having from 1 to 4 carbon atoms, and at least some of the R1 groups are —CH2—CH2—CH2—CH2—. Each X group is independently represented by the formula CH2═C(R)—C(O)—O—V—W—C(O)—. Articles and methods using the composition are also described.

The invention relates to a DNA (deoxyribonucleic acid) ligation buffer solution and application thereof, the DNA ligation buffer solution comprises 5-15 mM of divalent metal ions, 0.5-5 mM of DTT (dithiothreitol), 10-15% of polyethylene glycol, 0.5-5 mM of ATP (adenosine triphosphate) and a Tris-HCl buffer solution, and the pH (potential of hydrogen) value of the Tris-HCl buffer solution is 7-9. The DNA ligation buffer solution can significantly improve the ligation reaction efficiency, and increase ligation products in the ligation reaction and the number of molecules capable of being sequenced during library construction.

A thickening agent containing the reaction product of (A) one or more isocyanurate skeleton-containing polyisocyanates and (B) one or more amino-modified silicones represented by formula (1) (therein, each R1 independently represents a monovalent hydrocarbon group having 1-12 carbon atoms or an amino group represented by formula (2) (therein, Q represents a divalent group that has 2-8 carbon atoms and optionally contains therein a divalent amino group represented by -NH-), with at least one R1 in formula (1) being an amino group represented by formula (2); a is an integer of 0-100; b is an integer of 0-5; and c is an integer of 0-5), said thickening agent exhibiting excellent solubility in silicone oils and organic oils, and being capable of inducing the gelation thereof.

The invention discloses a Karstedt catalyst and a preparation method thereof, and belongs to the technical field of catalysts. The preparation method provided by the invention comprises the following steps: firstly, chloroplatinic acid reacts with three different siloxanes to generate a zero-valent platinum complex, the siloxanes are tetradimethyl vinyl siloxy silane, tetramethyl divinyl disiloxane and 1, 3-dimethyl-1, 1, 3, 3-tetraethylene disiloxane, calcium oxide is added in the reaction to be matched with sodium bicarbonate to neutralize, and then the zero-valent platinum complex is obtained. And after the reaction, reducing residual bivalent platinum by using sodium borohydride, and finally loading by using an SBA15 molecular sieve as a carrier to obtain the finished product Karstedt catalyst. The multi-ligand Karstedt catalyst is formed by combining a tetradentate ligand, a conventional chain ligand and a branched chain polyvinyl ligand, the multi-ligand Karstedt catalyst has high catalytic activity and stability, the loading capacity and the loading binding force are improved through a network architecture of a complex configuration, the dosage of the supported catalyst is reduced, and the cyclic utilization rate is improved.

Provided is a compound including a first ligand LA of Formula IIn Formula I, ring C is a 5- or 6-membered ring; each of X1 to X8 is C or N; one of X1 to X4 is C and is connected to ring C, and one of X1 to X4 is N and is coordinated to a metal M; Y is a divalent linker; K is a direct bond, O, or S; each R′, R″, RA, RB, and RC is hydrogen or a general substituent; at least one of RA or RB comprises an electron-withdrawing group; at least one of RB is a cyclic group; and metal M is selected from Os, Ir, Pd, Pt, Cu, Ag, and Au. Formulations, devices, and consumer products comprising the compound are also disclosed.

A method for capturing carbon dioxide, by: (i) contacting carbon dioxide gas with an aqueous solution containing: (a) an aqueous solvent, (b) an amine-containing sorbent of the formula H2N—(CR2)n—NH2, wherein n is an integer of 3-12 and R is independently selected from H, CH3, CH2CH3, (CH2)mOH, and (CH2)pNH2 for each instance of R, wherein m and p are independently selected from 0-3; and (c) a monovalent or divalent metal salt of the formula MacXbd where M is a monovalent or divalent metal, X is an anion other than carbonate or bicarbonate, a is +1 or +2, b is −1 or −2, and a·c=b·d; wherein the contacting step results in precipitation of a complex carbamate salt of the formula H2N—(CR2)n—NHC(O)O−Ma and / or a complex dicarbamate salt of the formula Ma-O(O)CHN—(CR2)n—NHC(O)O−Ma; and (ii) separating the precipitated solid from the aqueous solvent, optionally followed by thermal regeneration of the amine-containing sorbent.

The present invention provides a grease composition and an axle bearing in which the grease composition is sealed.SOLUTION: The grease composition of the present invention contains a base oil, a thickener, and an additive, the additive contains an organic metal salt of a divalent metal and an inorganic metal salt of a divalent metal, the total mass of the metal content of the organic metal salt and the metal content of the inorganic metal salt is 1.00% by mass or more based on the grease composition, and the metal content of the organic metal salt with respect to the total mass of the metal content of the organic metal salt and the metal content of the inorganic metal salt is 0.20 or more on a mass basis.SELECTED DRAWING: None

Provided is a resist composition which generates an acid upon exposure, and the solubility of which in a developer solution is changed by the action of the acid. The resist composition contains a resin component (A1) the solubility of which in a developer solution is changed by the action of an acid. The resin component (A1) has a structural unit (a01) that is represented by formula (a01) and a structural unit (a02) that is represented by formula (a02). In formula (a01) and formula (a02), R represents a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, or a halogenated alkyl group having 1 to 5 carbon atoms, Ar0 represents an aromatic hydrocarbon group, Ar01 represents an aromatic hydrocarbon group, m0 represents an integer of 1 or more, Y02 represents a single bond or a divalent linking group, Rf02 represents a divalent linking group that contains a fluorine atom, m represents an integer of 1 or more; and Mm+ represents an m-valent cation.