Title:
MULTI-PRINCIPAL ELEMENT POROUS ALLOY AND PREPARATION METHOD, AND POROUS ELECTRODE FOR ELECTROLYZING SEAWATER
Document Type and Number:
WIPO Patent Application WO/2024/046324
Kind Code:
A1
Abstract:
The present invention relates to a multi-principal element porous alloy and a preparation method, and a porous electrode for electrolyzing seawater. The preparation method for the multi-principal element porous alloy comprises: smelting to obtain an alloy having the nominal compositions of FeaCobNicNbdTieTafHfgZrhMx as a precursor; and then selectively removing active phases in the precursor by means of a chemical/electrochemical dealloying method to prepare the multi-principal element porous alloy. The multi-principal element porous alloy can be directly used as an electrode for electrolyzing seawater, the overpotentials of an oxygen evolution reaction (OER) and a hydrogen evolution reaction (HER) under an industrial electrolytic current density are respectively 461 mV and 178 mV, and an OER stable operation is performed for more than 1600 h under the current density. The present invention has great application prospects in the aspect of electrode devices for electrolyzing seawater for hydrogen production.
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Inventors:
LIU XIONGJUN (CN)
LI ZHIBIN (CN)
WANG HUI (CN)
WU YUAN (CN)
LV ZHAOPING (CN)
LI ZHIBIN (CN)
WANG HUI (CN)
WU YUAN (CN)
LV ZHAOPING (CN)
Application Number:
PCT/CN2023/115551
Publication Date:
March 07, 2024
Filing Date:
August 29, 2023
Export Citation:
Assignee:
UNIV BEIJING SCIENCE & TECHNOLOGY (CN)
International Classes:
C22C30/00; C22C1/08; C22C30/02; C23F1/02; C23F1/30; C25B1/04; C25B11/031
Foreign References:
| CN115491562A | 2022-12-20 | |||
| CN115323398A | 2022-11-11 | |||
| CN114990563A | 2022-09-02 | |||
| JP2023028320A | 2023-03-03 | |||
| KR101684856B1 | 2016-12-09 | |||
| CN113061925A | 2021-07-02 | |||
| CN104120325A | 2014-10-29 | |||
| CN114570386A | 2022-06-03 |
Attorney, Agent or Firm:
BEIJING JINZHIPUHUA INTELLECTUAL PROPERTY AGENCY CO. LTD (CN)
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