Overall water splitting realized by overall sputtering thin-film technology for a bifunctional MoNiFe electrode: A green technology for green hydrogen

被引：63

作者：

Gultom, Noto Susanto ^{[1
]}

Chen, Tien-Shin ^{[1
]}

Silitonga, Mikha Zefanya ^{[1
]}

Kuo, Dong-Hau ^{[1
,2
]}

机构：

[1] Natl Taiwan Univ Sci & Technol, Dept Mat Sci & Engn, 43,Sect 4,Keelung Rd, Taipei 10607, Taiwan

[2] Natl Taiwan Univ Sci & Technol, Grad Inst Energy & Sustainabil Technol, 43,Sect 4,Keelung Rd, Taipei 10607, Taiwan

来源：

APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY | 2023年 / 322卷

关键词：

Electrocatalyst; Ternary MoNiFe alloy; Green hydrogen; Overall water splitting; Sputtering; EFFICIENT ELECTROCATALYST; CATALYST;

D O I：

10.1016/j.apcatb.2022.122103

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Electrode for water electrolysis needs to be prepared by a non-traditional way to overcome the peel-off problem of electrocatalysts under high current. Herein, we use the sputtering technology to prepare the ternary MoNiFe alloys with various Mo contents as bifunctional electrocatalyst for overall water splitting in alkaline solution. The incorporation of Mo atoms in the NiFe host structure improved the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER) performance. The bifunctional MNF-2 electrolyte cell requires a cell potential of 1.55 V at 10 mA/cm2. The scale-up single MNF-2 stack cell of 3 x 3 cm2 needed 1.9 and 2.1 V to reach 100 and 500 mA/cm2, respectively. Stability test at 100 mA/cm2 for 100 h showed no degradation. The sputtering thin-film technology can not only deposit excellent catalyst but also provide the strong catalyst/support adherence for industrial application. The excellent activity of MoNiFe is attributed to its composition design.

引用

页数：14

共 65 条

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