Title:
MULTIPHASE NANO HETEROJUNCTION MATERIAL AND PREPARATION METHOD THEREFOR AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/082449
Kind Code:
A1
Abstract:
The present invention relates to the technical field of nano materials. In particular, disclosed is a preparation method for a multiphase nano heterojunction material. The method comprises the following steps: providing a substrate loaded with an NiMoO4 precursor; dissolving selenium powder in hydrazine hydrate, adding water or a sodium molybdate aqueous solution, adding the substrate loaded with the NiMoO4 precursor, and performing a reaction at a temperature of 180-200°C; and after the reaction is finished, obtaining the multiphase nano heterojunction material. The present invention also provides a four-phase 1T/2H-MoSe2-H/R-NiSe nano heterojunction material and a three-phase 1T/2H-MoSe2-H-NiSe nano heterojunction material which are prepared by means of the method, and applications of the four-phase 1T/2H-MoSe2-H/R-NiSe nano heterojunction material and the three-phase 1T/2H-MoSe2-H-NiSe nano heterojunction material as electrocatalysts for catalyzing a hydrogen evolution reaction under an alkaline condition. The multiphase nano heterojunction material prepared in the present invention has a relatively large double-layer capacitance value, a relatively large electrochemical active area and relatively small impedance, and the activity and stability of electrocatalytic hydrogen production are greatly improved.
More Like This:
Inventors:
LANG JIANPING (CN)
XUE JIANGYAN (CN)
NI CHUNYAN (CN)
XUE JIANGYAN (CN)
NI CHUNYAN (CN)
Application Number:
PCT/CN2021/143125
Publication Date:
May 19, 2023
Filing Date:
December 30, 2021
Export Citation:
Assignee:
UNIV SOOCHOW (CN)
International Classes:
C25B11/061; B82Y30/00; B82Y40/00; C25B1/04; C25B11/091
Foreign References:
| CN112725826A | 2021-04-30 | |||
| CN113604838A | 2021-11-05 | |||
| CN111495395A | 2020-08-07 | |||
| CN113089014A | 2021-07-09 |
Other References:
"Master's Thesis", 16 June 2020, BEIJING UNIVERSITY OF CHEMICAL TECHNOLOGY, CN, article ZHANG ZHIYU: "Performance and Preparation of Nickel Foam-based Selenide and Nitride as A Bifunctional Photo-electrocatalyst for Efficient Overall Water Splitting", pages: 1 - 101, XP009545567, DOI: 10.26939/d.cnki.gbhgu.2020.001329
ZHANG, ZHIYU ET AL.: "Core/shell -structured NiMoO4 @ MoSe2/NixSey Nanorod on Ni Foam as a Bifunctional Electrocatalyst for Efficient Overall Water Splitting", COLLOIDS AND SURFACES A, vol. 599, 25 April 2020 (2020-04-25), XP086155636, ISSN: 0927-7757, DOI: 10.1016/j.colsurfa.2020.124888
ZHANG LONG, WANG TAO, SUN LAN, SUN YUNJIN, HU TINGWEI, XU KEWEI, MA FEI: "Hydrothermal synthesis of 3D hierarchical MoSe 2 /NiSe 2 composite nanowires on carbon fiber paper and their enhanced electrocatalytic activity for the hydrogen evolution reaction", JOURNAL OF MATERIALS CHEMISTRY A, ROYAL SOCIETY OF CHEMISTRY, GB, vol. 5, no. 37, 1 January 2017 (2017-01-01), GB , pages 19752 - 19759, XP093066428, ISSN: 2050-7488, DOI: 10.1039/C7TA05352E
ZHANG, ZHIYU ET AL.: "Core/shell -structured NiMoO4 @ MoSe2/NixSey Nanorod on Ni Foam as a Bifunctional Electrocatalyst for Efficient Overall Water Splitting", COLLOIDS AND SURFACES A, vol. 599, 25 April 2020 (2020-04-25), XP086155636, ISSN: 0927-7757, DOI: 10.1016/j.colsurfa.2020.124888
ZHANG LONG, WANG TAO, SUN LAN, SUN YUNJIN, HU TINGWEI, XU KEWEI, MA FEI: "Hydrothermal synthesis of 3D hierarchical MoSe 2 /NiSe 2 composite nanowires on carbon fiber paper and their enhanced electrocatalytic activity for the hydrogen evolution reaction", JOURNAL OF MATERIALS CHEMISTRY A, ROYAL SOCIETY OF CHEMISTRY, GB, vol. 5, no. 37, 1 January 2017 (2017-01-01), GB , pages 19752 - 19759, XP093066428, ISSN: 2050-7488, DOI: 10.1039/C7TA05352E
Attorney, Agent or Firm:
CENTRAL SOUTH WELL INTELLECTUAL PROPERTY OFFICE (CN)
Download PDF: