Synthesis of 3D heterostructure Co-doped Fe2P electrocatalyst for overall seawater electrolysis

被引：187

作者：

Wang, Shaohua ^{[1
]}

Yang, Ping ^{[1
]}

Sun, Xiangfei ^{[1
]}

Xing, Honglong ^{[1
]}

Hu, Jun ^{[2
]}

Chen, Ping ^{[2
]}

Cui, Zhitao ^{[3
,4
]}

Zhu, Wenkun ^{[5
]}

Ma, Zuju ^{[3
]}

机构：

[1] Anhui Univ Sci & Technol, Sch Chem Engn, Huainan 232001, Anhui, Peoples R China

[2] Anhui Univ, Shool Chem & Chem Engn, Hefei 230601, Peoples R China

[3] Yantai Univ, Sch Environm & Mat Engn, Yantai 264005, Peoples R China

[4] Anhui Univ Technol, Sch Mat Sci & Engn, Maanshan 243002, Peoples R China

[5] Southwest Univ Sci & Technol, State Key Lab Environm Friendly Energy Mat, Mianyang 621010, Sichuan, Peoples R China

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 2021年 / 297卷

基金：

美国国家科学基金会;

关键词：

Co-doped Fe2P; Density functional theory (DFT); Oxygen evolution reaction; Hydrogen evolution reaction; Overall seawater splitting; HYDROGEN EVOLUTION REACTION; BIFUNCTIONAL ELECTROCATALYST; WATER; EFFICIENT; PHOSPHIDE; CARBON; NICOP; NANOPARTICLES; NANOSHEETS; OXIDATION;

D O I：

10.1016/j.apcatb.2021.120386

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：

Electrolysis of seawater makes full use of this natural resource and continuously turns it into a clean fuel, hydrogen. Electrocatalysts for seawater electrolysis must maintain a steady-state operation without suffering from chloride corrosion. In this study, we report a three-dimensional structure metal phosphide electrocatalyst by depositing cobalt-doped Fe2P (Co-Fe2P) on Ni foam. Density functional theory calculations showed that CoFe2P was beneficial for the hydrogen evolution reaction (HER) because of its suitable H* adsorption. Thus, the asprepared Co-Fe2P acted as an efficient bifunctional electmcatalyst, exhibiting enhanced electrocatalytic properties for both the oxygen evolution reaction (OER) and HER. Moreover, the simulated alkaline seawater was used to determine the optimum potential (1.69 V at 100 mA cm(-2)) required for seawater splitting using the assynthesized electrocatalyst. This study proposes a novel material for electrocatalytic application.

引用

页数：11

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