B01J23/755

HETEROGENEOUS SYNTHESIS OF METHYLENE DIANILINE

The present invention relates to a catalytic material for the preparation of one or more of 4,4′-methylenedianiline, 2,2′-methylenedianiline, 2,4′-methylenedianiline, and oligomers of two or more thereof, the catalytic material comprising an oxidic support, wherein the oxidic support comprises an element E.sub.OS1 selected from the group consisting of Ti, Zr, Al, Si, and mixtures of two or more thereof, and further comprising a supported material supported on the oxidic support, wherein the supported material comprises an element E.sub.SM1 selected from the group consisting of Ti, Zr, V, Nb, Ta, Mo, W, Ge, Sn, Sc, Y, La, Ce, Nd, Pr, Hf, Cr, Fe, Co, Ni, Cu Zn, Pb and mixtures of two or more thereof. Further, the present invention relates in particular to a process for the preparation of a catalytic material and to a process for the preparation of one or more of 4,4′-methylenedianiline, 2,2′-methylenedianiline, 2,4′-methylenedianiline and oligomers of two or more thereof.

HETEROGENEOUS SYNTHESIS OF METHYLENE DIANILINE

The present invention relates to a catalytic material for the preparation of one or more of 4,4′-methylenedianiline, 2,2′-methylenedianiline, 2,4′-methylenedianiline, and oligomers of two or more thereof, the catalytic material comprising an oxidic support, wherein the oxidic support comprises an element E.sub.OS1 selected from the group consisting of Ti, Zr, Al, Si, and mixtures of two or more thereof, and further comprising a supported material supported on the oxidic support, wherein the supported material comprises an element E.sub.SM1 selected from the group consisting of Ti, Zr, V, Nb, Ta, Mo, W, Ge, Sn, Sc, Y, La, Ce, Nd, Pr, Hf, Cr, Fe, Co, Ni, Cu Zn, Pb and mixtures of two or more thereof. Further, the present invention relates in particular to a process for the preparation of a catalytic material and to a process for the preparation of one or more of 4,4′-methylenedianiline, 2,2′-methylenedianiline, 2,4′-methylenedianiline and oligomers of two or more thereof.

DRY REFORMING CATALYST COMPRISING PEROVSKITE STRUCTURE MATERIAL HAVING ELUTED TRANSITION ELEMENT, METHOD FOR MANUFACTURING SAME, DRY REFORMING CATALYST SYSTEM COMPRISING SAME, AND SOLID OXIDE FUEL CELL COMPRISING SAME
20230226526 · 2023-07-20 ·

Proposed is a dry reforming catalyst body composed of a perovskite crystal structure material having eluted transition elements with excellent catalytic stability. The dry reforming catalyst body includes a matrix composed of a perovskite crystal structure material comprising a first transition element and a second transition element and an eluate in which the first transition element is eluted from the matrix to the surface. The present invention provides a dry reforming catalyst including a perovskite structure material having an eluted transition element with excellent catalyst stability. The dry reforming catalyst according to one embodiment of the present invention includes a matrix comprising a perovskite structure material comprising a first transition element and a second transition element and an eluate which is the first transition element eluted from the matrix to the surface.

DRY REFORMING CATALYST COMPRISING PEROVSKITE STRUCTURE MATERIAL HAVING ELUTED TRANSITION ELEMENT, METHOD FOR MANUFACTURING SAME, DRY REFORMING CATALYST SYSTEM COMPRISING SAME, AND SOLID OXIDE FUEL CELL COMPRISING SAME
20230226526 · 2023-07-20 ·

Proposed is a dry reforming catalyst body composed of a perovskite crystal structure material having eluted transition elements with excellent catalytic stability. The dry reforming catalyst body includes a matrix composed of a perovskite crystal structure material comprising a first transition element and a second transition element and an eluate in which the first transition element is eluted from the matrix to the surface. The present invention provides a dry reforming catalyst including a perovskite structure material having an eluted transition element with excellent catalyst stability. The dry reforming catalyst according to one embodiment of the present invention includes a matrix comprising a perovskite structure material comprising a first transition element and a second transition element and an eluate which is the first transition element eluted from the matrix to the surface.

ELECTRODE CATALYST INK, ELECTRODE CATALYST, WATER ELECTROLYSIS CELL, AND WATER ELECTROLYZER

The electrode catalyst ink includes a catalyst including a layered double hydroxide, an organic polymer, and a solvent. The solvent includes a first solvent, a second solvent, and a third solvent. The third solvent has a boiling point higher than a boiling point of the first solvent and higher than a boiling point of the second solvent. The Hansen solubility parameter distance R.sub.a1 [MPa.sup.1/2] between the third solvent and the catalyst and the Hansen solubility parameter distance R.sub.a2 [MPa.sup.1/2] between the third solvent and the organic polymer satisfy a relationship of 2.08R.sub.a1−16.0≤R.sub.a2≤2.08R.sub.a1−13.5.

ELECTRODE CATALYST INK, ELECTRODE CATALYST, WATER ELECTROLYSIS CELL, AND WATER ELECTROLYZER

The electrode catalyst ink includes a catalyst including a layered double hydroxide, an organic polymer, and a solvent. The solvent includes a first solvent, a second solvent, and a third solvent. The third solvent has a boiling point higher than a boiling point of the first solvent and higher than a boiling point of the second solvent. The Hansen solubility parameter distance R.sub.a1 [MPa.sup.1/2] between the third solvent and the catalyst and the Hansen solubility parameter distance R.sub.a2 [MPa.sup.1/2] between the third solvent and the organic polymer satisfy a relationship of 2.08R.sub.a1−16.0≤R.sub.a2≤2.08R.sub.a1−13.5.

Carbon-doped nickel oxide catalyst and methods for making and using thereof

A catalyst composition including nickel foam and a plurality of carbon-doped nickel oxide nanorods disposed on the nickel foam.

Carbon-doped nickel oxide catalyst and methods for making and using thereof

A catalyst composition including nickel foam and a plurality of carbon-doped nickel oxide nanorods disposed on the nickel foam.

Catalyst for preparing synthetic gas, method for preparing the same, and method for preparing synthetic gas using the same

Disclosed are a catalyst for preparing a synthetic gas through dry reforming, a method preparing the catalyst, and a method using the catalyst for preparing the synthetic gas. The catalyst may include: a support including regularly distributed mesopores; metal nanoparticles supported on the support; and a metal oxide coating layer coated on a surface of the support.

Catalyst for preparing synthetic gas, method for preparing the same, and method for preparing synthetic gas using the same

Disclosed are a catalyst for preparing a synthetic gas through dry reforming, a method preparing the catalyst, and a method using the catalyst for preparing the synthetic gas. The catalyst may include: a support including regularly distributed mesopores; metal nanoparticles supported on the support; and a metal oxide coating layer coated on a surface of the support.