Title:
NICKEL/NICKEL-CONTAINING NITRIDE COMPOSITE ELECTRODE, AND PREPARATION METHOD THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2024/098919
Kind Code:
A1
Abstract:
Provided in the present application is a preparation method for a nickel/nickel-containing nitride composite electrode. The preparation method comprises the following steps: providing a nickel-containing substrate, sequentially forming a nickel-containing layer and an aluminum-containing layer on the surface of the nickel-containing substrate, subjecting the substrate with the nickel-containing layer and the aluminum-containing layer to a heat treatment in an inert or reducing atmosphere, treating the heat-treated substrate by using an alkali liquor to remove aluminum, washing and drying the substrate from which aluminum has been removed, and then subjecting same to a nitriding treatment, so as to obtain a nickel/nickel-containing nitride composite electrode. Further provided in the present application are a nickel/nickel-containing nitride composite electrode and the use thereof. In the present application, the nickel/nickel-containing nitride composite electrode has a stable structure, the crystal lattices of nickel are gradually converted into nickel nitride along with the introduction of nitrogen atoms, the surface of the electrode has a high activity, and the electrode can stably run in a non-acid environment for a long time, such that the stability of an application system is effectively improved, the efficiency of the system is enhanced, and the energy consumption of the system is reduced.
More Like This:
Inventors:
SUN ZHUXING (CN)
Application Number:
PCT/CN2023/116778
Publication Date:
May 16, 2024
Filing Date:
September 04, 2023
Export Citation:
Assignee:
WUXI LONGI HYDROGEN TECH CO LTD (CN)
International Classes:
C25B11/075; B01J27/24; C25B1/04; C25B11/061
Foreign References:
| CN115595617A | 2023-01-13 | |||
| CN110055552A | 2019-07-26 | |||
| CN112195440A | 2021-01-08 | |||
| CN109055976A | 2018-12-21 |
Other References:
FUZHAN SONG: "Interfacing nickel nitride and nickel boosts both electrocatalytic hydrogen evolution and oxidation reactions", NATURE COMMUNICATIONS, vol. 9, no. 1, UK, XP093169734, ISSN: 2041-1723, DOI: 10.1038/s41467-018-06728-7
JING CAI: "Fabrication of three-dimensional nanoporous nickel films with tunable nanoporosity and their excellent electrocatalytic activities for hydrogen evolution reaction", INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, vol. 38, no. 2, 1 January 2013 (2013-01-01), AMSTERDAM, NL, pages 934 - 941, XP093169739, ISSN: 0360-3199, DOI: 10.1016/j.ijhydene.2012.10.084
朱敏等 (ZHU, MIN ET AL.): "第二篇 金属材料 (Chapter 2 Metal Materials)", 工程材料 (数字资源版) (ENGINEERING MATERIALS (DIGITAL RESOURCE EDITION)), 28 February 2018 (2018-02-28)
JING CAI: "Fabrication of three-dimensional nanoporous nickel films with tunable nanoporosity and their excellent electrocatalytic activities for hydrogen evolution reaction", INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, vol. 38, no. 2, 1 January 2013 (2013-01-01), AMSTERDAM, NL, pages 934 - 941, XP093169739, ISSN: 0360-3199, DOI: 10.1016/j.ijhydene.2012.10.084
朱敏等 (ZHU, MIN ET AL.): "第二篇 金属材料 (Chapter 2 Metal Materials)", 工程材料 (数字资源版) (ENGINEERING MATERIALS (DIGITAL RESOURCE EDITION)), 28 February 2018 (2018-02-28)
Attorney, Agent or Firm:
BEIJING RUN ZEHENG INTELLECTUAL PROPERTY LAW FIRM (CN)
Download PDF: