Highly Ordered Mesoporous Bimetallic Phosphides as Efficient Oxygen Evolution Electrocatalysts

被引：145

作者：

Fu, Shaofang ^{[1
]}

Zhu, Chengzhou ^{[1
]}

Song, Junhua ^{[1
]}

Engelhard, Mark H. ^{[2
]}

Li, Xiaolin ^{[3
]}

Du, Dan ^{[1
]}

Lin, Yuehe ^{[1
,2
]}

机构：

[1] Washington State Univ, Sch Mech & Mat Engn, Pullman, WA 99164 USA

[2] Pacific Northwest Natl Lab, Environm Mol Sci Lab, Richland, WA 99354 USA

[3] Pacific Northwest Natl Lab, Energy & Environm Directory, Richland, WA 99354 USA

来源：

ACS ENERGY LETTERS | 2016年 / 1卷 / 04期

关键词：

WATER OXIDATION; HYDROGEN EVOLUTION; COBALT OXIDE; ALKALINE-SOLUTION; CARBON NANOTUBES; NANOPARTICLES; ELECTRODE; CATALYSTS; NI; OXYHYDROXIDE;

D O I：

10.1021/acsenergylett.6b00408

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：

Oxygen evolution from water using earth-abundant transition-metal based catalysts is of importance for the commercialization of water electrolyzers. Herein, we report a hard templating method to synthesize transition metal phosphides with uniform shape and size. By virtue of the structural feature, synergistic effects among metals, and the in situ formed active species, the as prepared phosphides with optimized composition present enhanced electrocatalytic performance toward the oxygen evolution reaction in alkaline solution. In detail, the catalyst with optimized composition reaches a current density of 10 mA/cm(2) at a potential of 1.511 V vs a reversible hydrogen electrode, which is much lower than that of a commercial RuO2 catalyst. Our work offers a new strategy to optimize the catalysts for water splitting by controlling the morphology and composition.

引用

页码：792 / 796

页数：5

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