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个人信息Personal Information
教授
博士生导师
硕士生导师
主要任职：无
其他任职：精细化工国家重点实验室副主任、大连理工大学-瑞典皇家工学院分子器件联合研究中心主任
性别：男
毕业院校：大连理工大学
学位：博士
所在单位：化工学院
学科：应用化学. 精细化工
办公地点：大连理工大学西部校区化工实验楼E-223
联系方式：0411-84986493
电子邮箱：sunlc@dlut.edu.cn
Copper Oxide Film In-situ Electrodeposited from Cu(II) Complex as Highly Efficient Catalyst for Water Oxidation
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论文类型：期刊论文
发表时间：2017-03-10
发表刊物：ELECTROCHIMICA ACTA
收录刊物：SCIE、EI、Scopus
卷号：230
页面范围：501-507
ISSN号：0013-4686
关键字：Water oxidation; Electrodeposition; Copper based film; Electrocatalyst
摘要：Water splitting is deemed as an effective pathway for producing ideal clean energy, such as hydrogen. Here, a copper oxide film (Cu-Tris film) was prepared in-situ from a 0.2 M phosphate buffer solution (pH =12.0) containing 1.0mM Cu2+ and 2.0mM Tris via controlled-potential electrodeposition. The CuTris film showed a significantly low overpotential of 390 mV at a cdrrent density of 1.0 mA/cm(2) for electrocatalytic water oxidation. Simultaneously, a considerably low Tafel slope of 41 mV/decade was achieved. This Cu-Tris film also exhibited a high and stable current derfSity of ca. 7.5 mA/cm(2) at 1.15 V vs. NHE for long-term electrocatalysis (10 h). These results demonstrated the superior performance of the developed Cu-Tris film, which should be attributed to the regulating effect of the five coordinated planar structure of the Cu-Tris complex precursor during the process of electrodeposition. (C) 2017 Elsevier Ltd. All rights reserved.