Catalyst Compositions Including Metal Chalcogenides, Processes for Forming the Catalyst Compositions, and Uses Thereof

Patent metadata

Field	Value
Publication number	US-2023131300-A1
Application number	US-202218086089-A
Country	US
Kind code	A1
Filing date	Dec 21, 2022
Priority date	Mar 11, 2021
Publication date	Apr 27, 2023
Grant date	—

Abstract

Aspects of the present disclosure generally relate to catalyst compositions including metal chalcogenides, processes for producing such catalyst compositions, processes for enhancing catalytic active sites in such catalyst compositions, and uses of such catalyst compositions in, e.g., processes for producing conversion products. In an aspect, a process for forming a catalyst composition is provided. The process includes introducing an electrolyte material and an amphiphile material to a metal chalcogenide to form the catalyst composition. In another aspect, a catalyst composition is provided. The catalyst composition includes a metal chalcogenide, an electrolyte material, and an amphiphile material. Devices for hydrogen evolution reaction are also provided.

First claim

What is claimed is:

1 . A device, comprising:
an aqueous electrolyte material; an aqueous amphiphile material; and a multilayer structure, the multilayer structure comprising a metal chalcogenide.

2 . The device of claim 1 , wherein the multilayer structure further comprises:
a substrate; and a source electrode and a drain electrode disposed on at least a portion of the substrate, the metal chalcogenide disposed on at least a portion of the source electrode and at least a portion of the drain electrode.

3 . The device of claim 1 , wherein the metal chalcogenide is in the form of a film comprising 10 or fewer layers.

4 . The device of claim 1 , wherein the metal chalcogenide is in the form of a monolayer film.

5 . The device of claim 1 , wherein the metal chalcogenide comprises a density of chalcogen atom vacancies from about 6% to about 30%, as determined by x-ray photoelectron spectroscopy.

6 . The device of claim 5 , wherein the density of chalcogen atom vacancies is about 6% to about 17%.

7 . The device of claim 1 , wherein:
the metal chalcogenide comprises a Group 3 to Group 10 metal of the periodic table of elements and a Group 16 element of the periodic table of elements; the aqueous electrolyte material comprises an acid; the aqueous amphiphile material comprises an anionic compound; or combinations thereof.

8 . The device of claim 7 , wherein:
the Group 3 to Group 10 metal is selected from the group consisting of Mo, W, Nb, Ni, Fe, V, Cr, Mn, and combinations thereof; and the Group 16 element is selected from the group consisting of S, Se, Te, and combinations thereof.

9 . The device of claim 1 , wherein the metal chalcogenide is selected from the group consisting of MoS 2 , NbSe 2 , TiS 2 , ZrS 2 , HfS 2 , TaS 2 , TeS 2 , ReS 2 , PtS 2 , SnS 2 , SnSe 2 , TiSe 2 , ZrSe 2 , HfSe 2 , VSe 2 , TaSe 2 , TeSe 2 , ReSe 2 , PtSe 2 , TiTe 2 , ZrTe 2 , VTe 2 , NbTe 2 , TaTe 2 , WTe 2 , CoTe 2 , RhTe 2 , IrTe 2 , NiTe 2 , PdTe 2 , PtTe 2 , SiTe 2 , NbS 2 , WS 2 , MoSe 2 , WSe 2 , MoTe 2 , and combinations thereof.

10 . The device of claim 1 , wherein the metal chalcogenide is selected from the group consisting of MoS 2 , MoSe 2 , MoTe 2 , WS 2 , WSe 2 , WTe 2 , and combinations thereof.

11 . The device of claim 1 , wherein:
the aqueous electrolyte material comprises an acid; and the aqueous amphiphile material comprises an anionic compound.

12 . The device of claim 11 , wherein the acid has a pKa of about 3 or less as determined by potentiometric titration.

13 . A conversion process, comprising:
introducing water and an amphiphile material with a metal chalcogenide to form a composition; and introducing a voltage to the composition to form a conversion product.

14 . The conversion process of claim 13 , further comprising introducing an electrolyte material with the metal chalcogenide.

15 . The conversion process of claim 13 , wherein the metal chalcogenide is represented by the formula:
ME 2 ,
wherein:
M is a Group 3 to Group 10 metal of the periodic table of elements, and
E is a Group 16 element of the periodic table of elements.

16 . The conversion process of claim 15 , wherein:
M is selected from the group consisting of Mo, W, Nb, Ni, Fe, V, Cr, Mn, and combinations thereof; and E is selected from the group consisting of S, Se, Te, and combinations thereof.

17 . The conversion process of claim 13 , wherein the metal chalcogenide is selected from the group consisting of MoS 2 , NbSe 2 , TiS 2 , ZrS 2 , HfS 2 , TaS 2 , TeS 2 , ReS 2 , PtS 2 , SnS 2 , SnSe 2 , TiSe 2 , ZrSe 2 , HfSe 2 , VSe 2 , TaSe 2 , TeSe 2 , ReSe 2 , PtSe 2 , TiTe 2 , ZrTe 2 , VTe 2 , NbTe 2 , TaTe 2 , WTe 2 , CoTe 2 , RhTe 2 , IrTe 2 , NiTe 2 , PdTe 2 , PtTe 2 , SiTe 2 , NbS 2 , WS 2 , MoSe 2 , WSe 2 , MoTe 2 , and combinations thereof.

18 . The conversion process of claim 13 , wherein the metal chalcogenide is selected from the group consisting of MoS 2 , MoSe 2 , MoTe 2 , WS 2 , WSe 2 , WTe 2 , and combinations thereof.

19 . A catalyst composition, comprising:
a metal chalcogenide; and an amphiphile material.

20 . The catalyst composition of claim 19 , wherein:
the metal chalcogenide comprises a Group 3 to Group 10 metal of the periodic table of elements and a Group 16 element of the periodic table of elements; the amphiphile material comprises an anionic compound; or combinations thereof.

Assignees

• Honda Motor Co Ltd
• Univ Columbia

Inventors

• Li Xufan
• Harutyunyan Avetik
• Liu Xiangye
• Li Baiching
• Hone James Curtis
• Esposito Daniel V

Classifications

• B01J2235/00

  Indexing scheme associated with group B01J35/00, related to the analysis techniques used to determine the catalysts form or properties · CPC title

• B01J27/051 Primary

  Molybdenum · CPC title

• C25B11/052

  Electrodes comprising one or more electrocatalytic coatings on a substrate · CPC title

• C25B11/075

  consisting of a single catalytic element or catalytic compound · CPC title

• C25B1/04

  by electrolysis of water · CPC title