Improved Oxygen Evolution Kinetics and Surface States Passivation of Ni-Bi Co-Catalyst for a Hematite Photoanode

被引：50
作者：
Dang, Ke [1 ,2 ]
Wang, Tuo [1 ,2 ]
Li, Chengcheng [1 ,2 ]
Zhang, Jijie [1 ,2 ]
Liu, Shanshan [1 ,2 ]
Gong, Jinlong [1 ,2 ]
机构：
[1] Tianjin Univ, Sch Chem Engn & Technol, Minist Educ, Key Lab Green Chem Technol, Tianjin 300072, Peoples R China
[2] Collaborat Innovat Ctr Chem Sci & Engn, Tianjin 300072, Peoples R China
来源：
ENGINEERING | 2017年 / 3卷 / 03期
基金：
中国国家自然科学基金;
关键词：
Nickel-borate; Hematite; Oxygen evolution reaction; Co-catalyst; WATER OXIDATION; TRANSITION; CATALYSTS; LAYER;
D O I：
10.1016/J.ENG.2017.03.005
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This paper describes the combinational surface kinetics enhancement and surface states passivation of nickel-borate (Ni-B-i) co-catalyst for a hematite (Fe2O3) photoanode. The Ni-B-i-modified Fe2O3 photoanode exhibits a cathodic onset potential shift of 230 mV and a 2.3-fold enhancement of the photocurrent at 1.23 V, versus the reversible hydrogen electrode (RHE). The borate (B-i) in the Ni-B-i film promotes the release of protons for the oxygen evolution reaction (OER). (C) 2017 THE AUTHORS. Published by Elsevier LTD on behalf of the Chinese Academy of Engineering and Higher Education Press Limited Company.
引用
收藏
页码：285 / 289
页数：5
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