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1. WO2020092188 - COMPOSITE, HIERARCHICAL ELECTROCATALYTIC MATERIALS FOR WATER SPLITTING

Publication Number WO/2020/092188
Publication Date 07.05.2020
International Application No. PCT/US2019/058252
International Filing Date 28.10.2019
IPC
C25B 1/04 2006.01
CCHEMISTRY; METALLURGY
25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON- METALS; APPARATUS THEREFOR
1Electrolytic production of inorganic compounds or non-metals
02of hydrogen or oxygen
04by electrolysis of water
C25B 11/04 2006.01
CCHEMISTRY; METALLURGY
25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON- METALS; APPARATUS THEREFOR
11Electrodes; Manufacture thereof not otherwise provided for
04characterised by the material
B01J 27/051 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
27Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
02Sulfur, selenium or tellurium; Compounds thereof
04Sulfides
047with chromium, molybdenum, tungsten or polonium
051Molybdenum
B01J 35/10 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
35Catalysts, in general, characterised by their form or physical properties
02Solids
10characterised by their surface properties or porosity
B01J 35/06 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
35Catalysts, in general, characterised by their form or physical properties
02Solids
06Fabrics or filaments
H01G 11/24 2013.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
11Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer capacitors; Processes for the manufacture thereof or of parts thereof
22Electrodes
24characterised by structural features of the materials making up or comprised in the electrodes, e.g. form, surface area or porosity; characterised by the structural features of powders or particles used therefor
Applicants
  • NORTHWESTERN UNIVERSITY [US]/[US]
Inventors
  • KANATZIDIS, Mercouri, G.
  • MA, Shulan
Agents
  • POREMBSKI, N., Meredith
  • BELL, Callie, M.
  • KALAFUT, Christopher
  • MANNING, Michelle
Priority Data
62/751,90729.10.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) COMPOSITE, HIERARCHICAL ELECTROCATALYTIC MATERIALS FOR WATER SPLITTING
(FR) MATÉRIAUX ÉLECTROCATALYTIQUES HIÉRARCHIQUES COMPOSITES POUR LA DISSOCIATION DE L'EAU
Abstract
(EN)
Composite electrocatalytic materials for catalyzing water splitting are provided. Such materials may comprise a porous, conductive support composed of a transition metal foam, the support having a surface, and a coating on the surface of the support. The coating may comprise nanorods of a first transition metal chalcogenide, each nanorod anchored on one end to the surface of the support and extending perpendicularly away from the surface of the support to a free opposing end, nanosheets of a second transition metal chalcogenide, the nanosheets coating a surface of the nanorods of the first transition metal chalcogenide, and nanosheets of a third transition metal chalcogenide, the nanosheets also coating the surface of the nanorods of the first transition metal chalcogenide.
(FR)
L'invention concerne des matériaux électrocatalytiques composites pour la catalyse de la dissociation de l'eau. De tels matériaux peuvent comprendre un support conducteur poreux composé d'une mousse de métal de transition, le support ayant une surface, et un revêtement sur la surface du support. Le revêtement peut comprendre des nanobâtonnets d'un premier chalcogénure de métal de transition, chaque nanobâtonnet étant ancré sur une extrémité à la surface du support et s'étendant perpendiculairement en s'éloignant de la surface du support jusqu'à une extrémité opposée libre, des nanofeuilles d'un deuxième chalcogénure de métal de transition, les nanofeuilles recouvrant une surface des nanobâtonnets du premier chalcogénure de métal de transition, et des nanofeuilles d'un troisième chalcogénure de métal de transition, les nanofeuilles revêtant également la surface des nanobâtonnets du premier chalcogénure de métal de transition.
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