Abstract: Provided is a neutron shielding material having good light transparency and excellent shielding performance against thermal neutron rays, and a method for producing the same. A neutron shielding material according to the present invention includes a light transmitting material and a boron compound enriched in a boron isotope having a mass number of 10, the neutron shielding material being formed of a molded product having light transparency. Shielding performance against thermal neutron rays is improved by containing a boron compound enriched in a boron isotope having a mass number of 10. As a result, the neutron shielding material can be widely applied to members requiring visibility and neutron blocking properties.

Abstract: Provided are a nonaqueous electrolytic solution for a secondary battery that exhibits excellent cycle characteristics even in high temperature environment, and a secondary battery including the same. The nonaqueous electrolytic solution for a secondary battery of the present invention is a nonaqueous electrolyte solution for a secondary battery which is used for a secondary battery, including at least one component (A) represented by the following chemical formula (1): in which Mn+ represents at least one selected from the group consisting of a hydrogen ion, an alkali metal ion, an alkaline earth metal ion, an aluminum ion, a transition metal ion and an onium ion, X represents a halogen atom, R1 represents a hydrocarbon group having 1 to 20 carbon atoms, or a hydrocarbon group having 1 to 20 carbon atoms and having at least any one of a halogen atom, a heteroatom or an unsaturated bond, and n represents a valence.

Abstract: A red phosphor excellent in optical characteristics and durability in a high-temperature and high-humidity environment and a method for producing the same are provided. The red phosphor according to the present invention includes: a Mn-activated composite fluoride represented by a general formula (1); and a perovskite compound represented by a general formula (2): L2MF6:Mn4+ (1) where L represents at least one alkali metal element selected from a group consisting of sodium, potassium, etc., and M represents at least one tetravalent element selected from a group consisting of silicon, germanium, etc.; and ABX3 (2) where A represents at least one selected from a group consisting of sodium, potassium, etc., B represents at least one element selected from a group consisting of magnesium, calcium, etc., and X represents at least one element selected from a group consisting of fluorine, chlorine, bromine, iodine, and sulfur.

Abstract: A red phosphor that has optical characteristics and durability under high-temperature and high-humidity environments, and a method for producing the same. The red phosphor includes a Mn-activated complex fluoride represented by the following general formula (1) and bismuth: A2MF6:Mn4+??(1) wherein A represents at least one alkali metal element selected from the group consisting of lithium, sodium, potassium, rubidium and cesium, and M represents at least one tetravalent element selected from the group consisting of silicon, germanium, tin, titanium, zirconium and hafnium.

Abstract: To provide a novel immobilized product in which a carbon material and/or a silicon material is/are immobilized on a base material surface by a chemical bond via a linking group, and a method for producing the same. The immobilized product is an immobilized product in which a carbon material is immobilizing on a surface of a base material, wherein the carbon material is chemically bonded on the surface of the base material via a linking group, and the linking group is at least one selected from the group consisting of a —NH group, a —NH—R1—NH group, a —SO group, a R2 group, a —O—R3—O group, and a R4 group (in which the R1 to R4 each independently represent at least one selected from the group consisting of a chain alkyl group, a cyclic alkyl group, a chain alkenyl group, a cyclic alkenyl group, a chain alkynyl group, etc.).

Abstract: A simple short-time method for modifying a fluorine resin film so that hydrophilicity is not likely to deteriorate over time. The method for modifying a fluorine resin film is characterized in that the surface of the fluorine resin film is provided with hydrophilicity by bringing the fluorine resin film into contact with a process gas, which contains gas containing fluorine atoms and at least one of gas containing oxygen atoms or inert gas.

Abstract: A non-aqueous electrolytic solution includes a phosphoric acid diester salt, which can suppress deterioration of charge-discharge characteristics of a power storage element, and can suppress the rise in internal resistance after storage at high temperature. The phosphoric acid diester salt is represented by the following chemical formula (1): in which Mn+ represents a hydrogen ion, an alkali metal ion, an alkali earth metal ion, an aluminum ion, a transition metal ion, or an onium ion, R1 and R2 are different from each other and represent a hydrocarbon group having 1 to 10 carbon atoms, or a hydrocarbon group having 1 to 10 carbon atoms and having at least one of a halogen atom, a heteroatom, and an unsaturated bond, and n represents a valence.

Abstract: A cross-linked structure of a carbon material is excellent in mechanical strength, such as tensile strength. The carbon materials such as carbon nanotube, graphite, fullerene, and carbon nanocoil, are cross-linked with each other. The carbon materials are cross-linked through a linking group derived from a nucleophilic compound having two or more nucleophilic groups in the molecule.

Abstract: A nonaqueous electrolytic solution for a secondary battery exhibits excellent cycle characteristics even in high-temperature environments. The solution includes at least one of boric acid esters, acid anhydrides, cyclic carbonates having an unsaturated bond, cyclic carbonates having a halogen atom, cyclic sulfonic acid esters, and amines having an acetoacetyl group. A secondary battery having a positive electrode and a negative electrode makes use of this electrolytic solution.

Abstract: A phosphodiester salt is added to the electrolytic solution to form a nonaqueous electrolytic solution for a secondary battery. The nonaqueous electrolytic solution has excellent storage characteristics in a temperature load environment. Deterioration of the charge-discharge characteristics of the nonaqueous electrolytic solution and increase in internal resistance of the nonaqueous electrolytic solution are suppressed during storage. A secondary battery having a positive electrode and a negative electrode makes use of this electrolytic solution.

Abstract: Disclosed is a phosphoric acid diester salt which can suppress deterioration of charge-discharge characteristics of a power storage element, and can suppress the rise in internal resistance after storage at high temperature, a production method therefor, a non-aqueous electrolytic solution for a power storage element, and a power storage element. Disclosed is a phosphoric acid diester salt represented by the following chemical formula (1): wherein Mn+ represents a hydrogen ion, an alkali metal ion, an alkali earth metal ion, an aluminum ion, a transition metal ion, or an onium ion; R1 and R2 are different from each other and represent a hydrocarbon group having 1 to 10 carbon atoms, or a hydrocarbon group having 1 to 10 carbon atoms and having at least one of a halogen atom, a heteroatom, and an unsaturated bond; and n represents a valence.

Abstract: Provided is a method for purifying a difluorophosphate, in which a difluorophosphate is purified to a high purity. The method includes a method for purifying a difluorophosphate, comprising bringing hydrogen fluoride into contact with a difluorophosphate containing an impurity and subsequently heating and drying the difluorophosphate, or bringing the hydrogen fluoride into contact with the difluorophosphate containing the impurity while heating and drying the difluorophosphate containing the impurity, thereby removing the impurity.

Abstract: A nitrogen-containing carbon material to the present invention comprises a carbon material having a carbon skeleton formed of carbon atoms and nitrogen atoms introduced into the carbon material, wherein part of carbon atoms in the carbon skeleton are substituted with nitrogen atoms. The nitrogen-containing carbon material according to the present invention can be produced by a production method including the steps of bringing the carbon material into contact with a first treatment gas containing a fluorine-containing gas to subject a surface of the carbon material to a fluorination treatment; and bringing the carbon material after being subjected to the fluorination treatment into contact with a second treatment gas containing a nitrogen-containing gas with heating to perform a nitriding treatment.

Abstract: Disclosed is a process for producing a fluoride gas that can produces fluoride gases such as BF3, SiF4, GeF4, PF5 or AsF5 at a reduced production cost in a simple manner. The process is characterized in that a compound containing an atom, which, together with a fluorine atom, can form a polyatomic ion, is added to a hydrogen fluoride solution to produce the polyatomic ion in a hydrogen fluoride solution and to evolve a fluoride gas comprising the fluorine atom and the atom that, together with the fluorine atom, can form a polyatomic ion.

Abstract: Provided is a method for producing a difluorophosphate, which can easily and industrially advantageously produce a high-purity difluorophosphate.

Abstract: A process for preparing difluorophosphate comprising reacting difluorophosphoric acid with at least one salt, as a raw material, selected from a halide salt, a carbonate, a phosphate, a hydroxide and an oxide of an alkali metal, an alkaline earth metal or an onium in the difluoraphosphoric acid, then separating a precipitate from the difluorophosphoric acid by solid-liquid separation, the precipitate being precipitated by crystallization operation in the difluorophosphoric acid, and removing the difluorophosphoric acid contained in the precipitate by distillation to obtain difluorophosphate.

Abstract: Provided is a method for producing a difluorophosphate, which can simply and easily produce a high-purity difluorophosphate in an industrially advantageous manner. The method includes steps of: reacting an aqueous hydrofluoric acid solution with an oxyhalide of phosphorous (except phosphoric trifluoride) to produce a crude difluorophosphoric acid; reacting the crude difluorophosphoric acid with a halide of an alkali metal, an alkaline earth metal, aluminum or an onium to produce a difluorophosphate in the crude difluorophosphoric acid; and heating and drying the crude difluorophosphoric acid containing the difluorophosphate to distill away the crude difluorophosphoric acid, or precipitating the difluorophosphate in the crude difluorophosphoric acid by crystallization, subsequently separating the difluorophosphate by solid-liquid separation, and further distilling away the crude difluorophosphoric acid contained in the difluorophosphate after solid-liquid separation.

Abstract: An object of the invention is to provide a tetrafluoroborate producing method that allows high-yield, high-efficiency production of a tetrafluoroborate by a continuous process, a tetrafluoroborate-containing electrolyte, and an electrical storage device including such an electrolyte. The invention provides a method for producing a tetrafluoroborate, which includes: a first step including dissolving boron trifluoride gas in an organic solvent; a second step including adding, to the organic solvent, a fluoride (MFn, wherein M represents a metal or NH4, and 1?n?3) in an amount stoichiometrically equivalent to or less than the amount of the boron trifluoride so that a tetrafluoroborate solution is produced; and a third step including circulating the tetrafluoroborate solution through the first step so that the boron trifluoride gas is dissolved in the tetrafluoroborate solution instead of the organic solvent.

Abstract: An object of the invention is to provide a method for producing a laminated film comprising at least two resin films bonded together, which is capable of increasing the adhesiveness of the bonding surface and forming a laminated film with high reliability. The method for producing a laminated film according to the invention comprising at least two resin films laminated together, which comprises: a fluorination treatment step comprising bringing a fluorine and oxygen atoms-containing treatment gas into contact with at least a partial region of the surface of at least one of the two resin films to increase the adhesiveness of the region; and a bonding step comprising bonding the two resin films together using, as a bonding surface, the surface that has been brought into contact with the treatment gas.

Abstract: The invention is directed to a carbon material dispersion, including: a fluorinated carbon material having a fluorinated surface formed by bringing a treatment gas with a fluorine concentration of 0.01 to 100 vol % into contact with a carbon material under conditions at 150 to 600° C.; and a dispersion medium in which the fluorinated carbon material is dispersed.