Nanostructured Fe(III) catalysts for water oxidation assembled with the aid of organic acid salt electrolytes

被引：2

作者：

Zhao, Qiang ^{[1
]}

Li, Dandan ^{[1
]}

Gao, Guofeng ^{[1
]}

Yuan, Wen ^{[2
]}

Hao, Genyan ^{[1
]}

Li, Jinping ^{[1
]}

机构：

[1] Taiyuan Univ Technol, Res Inst Special Chem, Taiyuan 030024, Shanxi, Peoples R China

[2] Taiyuan Normal Univ, Dept Chem, Taiyuan 030001, Shanxi, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2016年 / 387卷

基金：

中国国家自然科学基金;

关键词：

Water splitting; Oxygen evolution; Iron-based catalyst; In situ; Electrode position; OXYGEN-EVOLVING CATALYST; IN-SITU; EVOLUTION; OXIDE; ELECTRODES; IRON; PH; ELECTROCATALYSTS; COMPLEXES; PHOSPHATE;

D O I：

10.1016/j.apsusc.2016.07.065

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：

We describe the preparation of three partially ordered iron-based catalyst films (Fe-OAc, Fe-Pro, Fe-But) with nanoporous structure by electrodeposition from organate electrolytes containing Fe2+. The anions of the organic acids assisted the partial ordering of the nanostructured Fe(III) catalysts for water oxidation. A model involving an electrical double layer is invoked to explain the role of the organate electrolyte system in their formation. Analytical results have revealed the main component of the iron-based films to be a beta-FeOOH structure. The Fe-But catalyst catalyzed water oxidation in 0.1 m potassium carbonate solution with an average activity of 1.48 mA cm(-2) and an overpotential of 433 mV. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：1274 / 1280

页数：7

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