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
收藏
页码：1274 / 1280
页数：7
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