137 results about "Phosphorus atom" patented technology

The invention discloses a preparation method of a phenolic acid-based phosphorus-nitrogen flame retardant, the phenolic acid-based phosphorus-nitrogen flame retardant and application of the phenolic acid-based phosphorus-nitrogen flame retardant, and the preparation method comprises the following steps: S1, dissolving a phenolic acid compound in absolute ethyl alcohol, adding 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide, carrying out heating reaction, then cooling, carrying out reduced pressure distillation, washing with deionized water, filtering and drying to obtain a flame-retardant intermediate; and S2, dissolving the flame-retardant intermediate in the step S1 in an organic solvent, dropwise adding phosphonitrilic chloride trimer dissolved by the organic solvent, carrying out heating reaction, cooling, carrying out reduced pressure distillation, washing with deionized water, filtering, and drying to obtain the phenolic acid-based phosphorus-nitrogen flame retardant. According to the present invention, the natural renewable phenolic acid compound is adopted as the main raw material, the chemical structure of the phenolic acid compound contains phosphorus atoms of different valence states so as to simultaneously provide the condensed phase and gas phase flame retardation mechanism, and the structure contains the nitrogen element and the aromatic ring so as to be suitable for the efficient flame retardation treatment of the polylactic acid material, and the like.

The invention discloses hydrolysis-resistant liquid phosphite ester and a preparation method and application thereof.The hydrolysis-resistant liquid phosphite ester is prepared by the steps that 2, 2, 4-trimethyl-1, 3-pentanediol and phosphorus trichloride or phosphite triester serve as raw materials, a cyclization reaction is conducted firstly, and then the hydrolysis-resistant liquid phosphite ester is obtained; and then carrying out nucleophilic substitution on Cl or aryl and alkyl on the cyclized intermediate by using higher saturated monohydric alcohol with more than C8, wherein the molecular structure is as shown in formula I in the specification. The liquid phosphite ester is novel liquid phosphite ester, the main body of the liquid phosphite ester is of a six-membered ring structure, the basic structure of the phosphite ester is reserved to the maximum extent, and the anti-oxidation effect of the phosphite ester is guaranteed; hydrophobic aliphatic chain structures on phosphorus atoms and branched chains of the phosphorus atoms prevent water molecules from approaching P-O bonds, so that the phosphorus atoms and the branched chains are prevented from being attacked by the water molecules, and the hydrolysis resistance is improved under the conditions that any additional amine hydrolysis-resistant agent is not used and any steric hindrance group is not introduced; good practical value, economic value and market prospect are realized.

This proton conductive electrolyte material has a chemical structure which comprises an acidic polymer (2) that contains an oxo acid group represented by -POx(OH)y (wherein x and y are each 1 or more), having a phosphorus atom, and at least one saturated hydrocarbon group in the main chain, and a basic polymer (3) that contains a basic functional group, while having at least one aromatic ring in the main chain, wherein an attractive interaction occurs between the oxo acid group and the basic functional group. This fuel cell is provided with the proton conductive electrolyte material. This method for producing a proton conductive electrolyte material includes: preparing a first solution by means of an acidic polymer and a mixed solvent; preparing a second solution in which a basic polymer is dissolved in a solvent; and preparing a mixed solution in which the first solution and the second solution are mixed. With respect to the preparation of the first or second solution, a mixed solvent which contains an inhibitor that is capable of inhibiting rapid aggregation of the oxo acid group and the basic functional group is prepared.

This solid electrolyte contains: a molecular crystal that contains an alkali metal salt and an organic molecule which has at least one atom selected from the group consisting of sulfur atoms, oxygen atoms, nitrogen atoms, and phosphorus atoms; and a fluorine-containing polymer. The solid electrolyte has a diffraction spectrum derived from the molecular crystal in X-ray diffraction.

The invention provides a TBC battery, a preparation method thereof and a photovoltaic module, and relates to the technical field of solar cells, and the front surface structure of the TBC battery comprises an N + front surface field layer, a front phosphorosilicate glass layer, a passive film layer and an antireflection film layer which are sequentially stacked on the front surface of a silicon substrate; wherein the N + front surface field layer is a high-concentration N-type region formed by doping phosphorus atoms on the front surface through phosphorus diffusion. An N + front surface field (FSF) is added on the front surface of the cell, phosphorus atoms are doped on the front surface through phosphorus diffusion to form an N + region, an N-N + high-low junction is formed with an N-type silicon substrate, minority carriers are repelled, and the field passivation effect is improved.

A phosphorus-carbon composite material includes: phosphorus atoms; and carbon atoms, in which a content ratio of the phosphorus atoms in the phosphorus-carbon composite material is 10 mass % or more and 95 mass % or less, a content ratio of the carbon atoms in the phosphorus-carbon composite material is 5 mass % or more and 90 mass % or less, and a ratio WL620 / WL780 of a weight loss ratio WL620 at a measurement temperature of 620° C. and a weight loss ratio WL780 at a measurement temperature of 780° C., which are obtained by thermogravimetric measurement under the following conditions, is 0.1 or more and 0.9 or less. (Thermogravimetric measurement) 10 mg of the phosphorus-carbon composite material is accurately weighed to prepare a sample, and using a thermogravimetric measuring device, a weight change when the sample is heated from 50° C. to 780° C. at a temperature rising rate of 10° C. / min in N2 is measured. (Weight loss ratio) A ratio of a weight of the sample at the measurement temperature to a weight of the accurately weighed sample is defined as a weight loss ratio (weight %) at the measurement temperature.

The invention discloses a nitrogen / phosphorus co-doped fullerene material and a preparation method and application thereof.The nitrogen / phosphorus co-doped fullerene material is composed of fullerene, melamine and ammonium hypophosphite, the fullerene serves as a carbon skeleton precursor to form a rich pentagonal topological defect structure in the high-temperature pyrolysis process, and the nitrogen / phosphorus co-doped fullerene material is obtained; melamine and ammonium hypophosphite are respectively used as a nitrogen source and a phosphorus source, are decomposed at a high temperature and are uniformly doped with nitrogen and phosphorus atoms in a carbon skeleton. The method comprises the following steps: dissolving fullerene in carbon disulfide, adding melamine, uniformly mixing, heating until the carbon disulfide is completely volatilized, adding an ammonium hypophosphite solution, and pyrolyzing in an inert atmosphere to obtain the nitrogen / phosphorus co-doped fullerene material. The electrocatalyst provided by the invention has a relatively large specific surface area, can provide more active sites, and also can provide higher mass transfer efficiency and HO selectivity due to rich pores and a topological defect structure, so that the oxygen reduction reaction rate can be improved.

Provided are: a calcium-based carbonic acid compound, the shape of which is controlled so as to have a high aspect ratio; and an inorganic molded body. The present invention provides a calcium-based carbonic acid compound wherein: the content of phosphorus atoms is 1,000-15,000 ppm; the content of sulfur atoms is 2,000 ppm or less; and the aspect ratio of the average major axis to the average minor axis is 6-19.

The present invention relates to a composition comprising a fluorinated polymer bearing polar groups P1 and a polymer additive P2 comprising at least one functional group containing a phosphorus atom, and to the use thereof as a binder for electrodes for a Li-ion battery.

The invention discloses a latent curing accelerator capable of improving the bonding strength of epoxy resin as well as a preparation method and application of the latent curing accelerator. The structural formula of the silicate onium salt latent curing accelerator containing the nitrogen heterocyclic ring structure is shown as a formula I, and Z represents a five-membered nitrogen heterocyclic ring or six-membered nitrogen heterocyclic ring structure containing at least two nitrogen atoms; x1 is selected from an organic group connected with a silicon atom in a silicate onium salt structure and a nitrogen-containing heterocyclic ring structure; ar is selected from aromatic groups; r1, R2, R3 and R4 are independently selected from a hydrogen atom, a phenyl group, a benzyl group and a C1-C6 alkyl group; y is selected from nitrogen atoms or phosphorus atoms. The onium silicate latent curing accelerator containing the nitrogen heterocyclic ring structure can endow epoxy resin with excellent storage property, flowability, curing property, mechanical property and bonding strength while serving as an epoxy resin curing accelerator, and the manufacturability and packaging reliability of an epoxy resin packaging material are improved.

Provided is a sulfide solid electrolyte glass ceramic containing a lithium atom, a sulfur atom, a phosphorus atom, and a halogen atom and having peaks at diffraction angles (2θ) of 20.2° and 29.3° in X-ray diffractometry using CuKα line. Due to an intensity ratio (PA / PB) of a peak intensity (PA) of the peak appearing at 2θ=20.2° to a peak intensity (PB) of the peak appearing at 2θ=29.3° made into more than 1.0, the sulfide solid electrolyte glass ceramic has a high ionic conductivity and has an increased water resistance. A method for producing the sulfide solid electrolyte glass ceramic is also provided.

The invention discloses a preparation method of FePS3, which comprises the following steps: mechanically mixing pyrite powder, sulfur-containing small molecules and elemental phosphorus, calcining the fully mixed powder in two temperature stages under a protective atmosphere, and cooling to obtain FePS3 nano-powder; wherein in the first temperature stage, the temperature is 200-300 DEG C, and the heat preservation time is 120-240 minutes, and in the second temperature stage, the temperature is 400-600 DEG C, and the heat preservation time is 120-180 minutes; the sulfur-containing small molecules are thiourea, thioacetamide or a mixture of the thiourea and the thioacetamide; the molar ratio of sulfur atoms to phosphorus atoms in FeS2 molecules and sulfur-containing small molecules in the pyrite powder is (1: 3: 5)-(1: 1: 5). According to the method, pyrite is used as an iron source and a sulfur source, sulfur-containing small molecules are used as a second sulfur source, and the FePS3 nano-powder is directly obtained through solid-phase reaction with the simple substance phosphorus without additional purification treatment. The method is low in solid-phase reaction temperature and simple in process, does not need harsh reaction conditions, and is easy for large-scale production.

A two-dimensional particle that includes: one or plural layers that comprise a layer body represented by: MmXn, wherein Mis at least one metal of Group 3, 4, 5, 6, or 7; X is a carbon atom, a nitrogen atom, or a combination thereof; n is 1 to 4; and m is more than n but not more than 5, a modifier or terminal T exists on a surface of the layer body, wherein T is at least one selected from a hydroxyl group, a fluorine atom, a chlorine atom, an iodine atom, an oxygen atom, a chlorine atom, a phosphorus atom, and a hydrogen atom; and a hydrocarbon compound exists on the one or plural layers.

To provide a molded article in which an adherend and a resin layer are relatively hardly peeled in the presence of moisture, and to provide a package using the molded article.SOLUTION: The molded article according to the present invention includes an adherend and a layer A laminated on the adherend, wherein the layer A contains a polyolefin-based resin and a phosphorus-based antioxidant, the content of the phosphorus-based antioxidant is 0.01 parts by mass or more and 1 part by mass or less with respect to 100 parts by mass of the polyolefin-based resin, and the number of atoms (excluding hydrogen atoms) present at less than 4.6 Å from a phosphorus atom in the phosphorus-based antioxidant is 16 or more.SELECTED DRAWING: None

A molecular crystal includes: an organic molecule having a total of at least four individual atoms selected from the group consisting of nitrogen atoms, oxygen atoms, sulfur atoms and phosphorus atoms; and an alkali metal salt.

The present invention belongs to the technical field of sodium-ion batteries, and particularly relates to a phosphorus-doped coal-tar pitch-based hard carbon material, a preparation method thereof, and an application thereof. The preparation method of the hard carbon material comprises the following steps: mixing coal-tar pitch with yeast, grinding, and performing carbonization to obtain the phosphorus-doped coal-tar pitch-based hard carbon material. The preparation method has the characteristics of simplicity, economy, and environmental friendliness. In the present invention, yeast is used as a phosphorus source, and in-situ phosphidation by yeast is utilized to inhibit graphitization during the carbonization of coal-tar pitch. At the same time, uniform doping of phosphorus is achieved during the carbonization of yeast, inhibiting the growth of coal-tar pitch carbon microcrystals during high-temperature carbonization. In addition, phosphorus atoms improve the surface defects and oxygen functional groups of the material, which can effectively improve the sodium storage capacity and cycle stability, expand the interlayer spacing, and promote the rapid and efficient transfer of sodium ions. The phosphorus-doped coal-tar pitch-based hard carbon material can be used for preparing sodium-ion batteries and has important application value.

A lithographic printing plate precursor has an aluminum substrate prepared using two anodization processes to provide an inner aluminum oxide layer having an average dry thickness of 300-3,000 nm and having a plurality of inner micropores having an average inner micropore diameter of <100 nm. An outer aluminum oxide layer is provided with a plurality of outer micropores having an average outer micropore diameter of 15-30 nm and a dry thickness of 30-650 nm. A hydrophilic layer is provided on the outer aluminum oxide layer having (1) a compound having an ethylenically unsaturated polymerizable group, an -OM group directly attached to a phosphorus atom, wherein M represents a hydrogen, sodium, potassium, or aluminum atom; and (2) one or more hydrophilic polymers having (a) a repeating unit comprising an amide group, and (b) a repeating unit having an -OM' group directly attached to a phosphorus atom, wherein M' represents a hydrogen, sodium, potassium, or aluminum atom. 2 An outer aluminum oxide layer is provided with a plurality of outer micropores having an average outer micropore diameter of 15-30 nm and a dry thickness of 30-650 nm. A hydrophilic layer is provided on the outer aluminum oxide layer having (1) a compound having an ethylenically unsaturated polymerizable group, an -OM group directly attached to a phosphorus atom, wherein M represents a hydrogen, sodium, potassium, or aluminum atom; and (2) one or more hydrophilic polymers having (a) a repeating unit comprising an amide group, and (b) a repeating unit having an -OM' group directly attached to a phosphorus atom, wherein M' represents a hydrogen, sodium, potassium, or aluminum atom.

A flame-retardant film formed from a resin composition without halogens and a decoration material film manufactured therefrom are provided. The resin composition includes: 12 wt % to 55 wt % of a first polyolefin resin, 20 wt % to 60 wt % of a second polyolefin resin, 3 wt % to 15 wt % of a phosphorus compound with spiro structure, and 15 wt % to 30 wt % of a flame retardant mixture. A phosphorus atom content of the first polyolefin resin ranges from 0.1 wt % to 1.0 wt %. The second polyolefin resin includes a polyethylene and a polypropylene. The flame retardant mixture includes a phosphorus-based flame retardant and further includes at least one selected from the group consisting of a nitrogen-based flame retardant, a silicon-based flame retardant, a boron-based flame retardant, and an inorganic metal flame retardant.

The present invention relates to a composition comprising a fluorinated polymer P1 and a polymer additive P2 comprising at least one functional group containing a phosphorus atom.

A compound and a metal extractant for extracting metal ions present in an aqueous phase into an oil phase, the compound and metal extractant having a structure represented by formula (I) and not having a nitrogen atom, and a method for separating and recovering metal ions using the metal extractant. In formula (I), R1 represents a hydrogen atom, a metal atom, or a monovalent substituent, X represents a monovalent substituent including at least one of an oxygen atom, a sulfur atom, and a phosphorus atom, and the benzene ring in the formula may form a fused ring. Formula (I)

A solid electrolyte containing a molecular crystal and a fluorine-containing polymer, the molecular crystal including an organic molecule having at least one kind of atom selected from a sulfur atom, an oxygen atom, a nitrogen atom, and a phosphorus atom, and an alkali metal salt, the solid electrolyte having a diffraction spectrum derived from the molecular crystal in X-ray diffraction.

A polyester resin, such as polyethylene terephthalate and a copolymer thereof, that is produced by using a polymerization catalyst containing an aluminum compound, such as an aluminum acetate, and a phosphorus compound, such as a 3,5-di-tert-butyl-4-hydroxybenzylphosphonic acid dialkyl ester, that can reduce a catalyst cost, for which polymerization activity is high, and in which there is less catalyst-derived foreign matter. The polyester resin contains an aluminum compound and a phosphorus compound used as a catalyst, and the amount of aluminum atom contained in the polyester resin is 9 to 20 ppm, the amount of phosphorus atom contained in the polyester resin is 13 to 31 ppm, a mole ratio of the phosphorus atom to the aluminum atom in the polyester resin is 1.32 to 1.80.

An active material particle according to an aspect of the present invention includes an active material base material and a covering layer covering at least a part of a surface of the active material base material, in which the covering layer contains niobium atoms and phosphorus atoms, and a content of the phosphorus atoms with respect to a total content of the niobium atoms and the phosphorus atoms in the covering layer is more than 0 mol % and 80 mol % or less.

A resin composition is provided and contains a maleimide compound, a polyphenylene ether compound having an unsaturated double bond in the molecule, a phosphorus-containing compound having a group represented by the following Formula (1) and a group containing a phosphorus atom in the molecule, and a curing agent.In Formula (1), R1 represents a hydrogen atom or an alkyl group.

The invention relates to a solvent extraction method for improving a separation factor of trivalent americium and curium, which comprises the following steps: preparing an extraction organic phase solution containing an extraction agent and a synergistic extraction agent, the extraction agent being dithiophosphonic acid with long chain hydrocarbon substituents on two substituted benzene rings on phosphorus atoms; then co-extracting Am (III) / Cm (III) by using an extraction organic phase solution; carrying out selective reverse extraction on Cm (III) by adopting a water-phase solution containing a water-soluble complexing reverse extraction agent; and finally, carrying out primary reverse extraction on the residual Am (III) in the organic phase by using HNO3. According to the method provided by the invention, the separation factor of the trivalent americium and curium is increased from about 4 to more than 10, so that the separation factor of the americium and curium is greatly increased. Compared with the prior art, the extraction agent adopted in the method is higher in stability, the separation factor of americium and curium is high, and separation of trivalent actinide lanthanum and americium and curium can be achieved in one extraction and separation process in a synergistic extraction and complexing reverse extraction mode.

The invention belongs to the technical field of semiconductor materials, and particularly relates to a preparation method of an n-type phosphorus-doped silicon carbide crystal. According to the preparation method of the n-type phosphorus-doped silicon carbide crystal, phosphorus atoms are obtained through reaction and conversion of silicon atoms in the silicon carbide crystal and neutron capture nucleuses, and the preparation method comprises the following steps that the initial electrical property of the silicon carbide crystal to be doped is measured; calculating the target doping concentration of phosphorus atoms according to the target resistivity, and judging whether the silicon carbide crystal is subjected to phosphorus atom doping or not; carrying out neutron irradiation treatment on the silicon carbide crystal to be doped by adopting a neutron source to convert silicon atoms into phosphorus atoms so as to realize doping of the phosphorus atoms; and activating the doped phosphorus atoms to obtain the n-type phosphorus-doped silicon carbide crystal. The method has the beneficial effects that endogenous silicon in the silicon carbide is accurately regulated and controlled to be converted into phosphorus through the neutron irradiation condition, so that the method for doping phosphorus in the silicon carbide is realized; the process is simple, the cost is low, and the crystal form of the silicon carbide crystal is not changed.

Electrolyte additive comprising a first additive, a second additive and a third additive, wherein the first additive comprises a compound represented by formula 1: where: R1 is selected from a C atom or an O atom; R2 is selected from or R3 is selected from methylene, or R4 is selected from or and at least one of R2, R3 and R4 contains a sulfur atom; wherein the second additive comprises at least one of a compound represented by formula 2 and one of a compound represented by formula 3: formula 2, formula 3, where X comprises a phosphorus atom or a phosphorus atom; and where the third additive comprises a compound represented by formula 4: RN=C=O Formula 4, where R comprises at least one of alkyl, O=C=N-substituted alkyl, cycloalkyl, O=C=N-substituted cycloalkyl, aryl or O=C=N-substituted aryl.

The invention relates to a process for L-Iditol by hydrogenating L-Sorbose. Further, the invention also relates to a use of a transition metal complex as hydrogenation catalyst for L-Sorbose. The invention relates to a process for the preparation of L-Iditol comprising at least one reaction step, in which a composition comprising L-Sorbose and hydrogen is reacted in the presence of a transition metal catalyst complex in a homogeneous solution, wherein the transition metal catalyst complex comprises at least one chiral ligand containing at least one phosphorus atom, which is capable of coordinating to the transition metal, and wherein the transition metal is selected from metals of groups 8, 9 and 10 of the periodic table of the elements according to IUPAC. The invention further relates to a use of a transition metal complex as defined above and below as hydrogenation catalyst for compositions comprising L-Iditol or mixtures thereof.

This positive electrode mixture contains a carbon material, a sulfur-based active material, and an ion conductor containing lithium atoms, phosphorus atoms and halogen atoms, and has diffraction peaks at 2θ = 29.3 ± 0.5° and 2θ = 34.0 ± 0.5° according to X-ray powder diffraction using CuKα radiation.

Provided is a curable resin material which contains: a resin (A) containing an indene ring, a vinylbenzyl group, and an arylalkyl group other than the vinylbenzyl group; and a phosphorus atom-containing compound (B).