Cathodic behaviour of RuO2-doped Ni/Co3O4 electrodes in alkaline solutions: hydrogen evolution

被引：0
作者：
N. Krstajic
S. Trasatti
机构：
[1] University of Milan,Department of Physical Chemistry and Electrochemistry
来源：
Journal of Applied Electrochemistry | 1998年 / 28卷
关键词：
electrocatalysis; hydrogen evolution; mixed oxide electrodes; Co3O4; RuO2; reaction mechanism;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
RuO2-doped Co3O4 electrodes were prepared by thermal decomposition of the corresponding nitrates using Ni as a support. The RuO2 content was varied between 0 and 20mol%. The kinetics of hydrogen evolution from alkaline solution was studied by recording quasisteady state polarization curves at several NaOH concentrations. A mechanism is proposed on the basis of Tafel slopes and reaction orders. The electrocatalytic activity of the mixed oxides has been found to go through a maximum at intermediate RuO2 contents. Some evidence of instability has emerged.
引用
收藏
页码：1291 / 1297
页数：6
相关论文
共 50 条
[21]   Constructing Co3O4/La2Ti2O7 p-n Heterojunction for the Enhancement of Photocatalytic Hydrogen Evolution [J].
Wen, Haodong ;
Zhao, Wenning ;
Han, Xiuxun .
NANOMATERIALS, 2022, 12 (10)
[22]   Asymmetric Site-Enabled O-O Coupling in Co3O4 for Oxygen Evolution Reaction [J].
Cui, Minghui ;
Guo, Rongjing ;
Zhou, Yansong ;
Zhao, Wenqi ;
Liu, Yanjing ;
Luo, Wenbo ;
Ou, Qiongrong ;
Zhang, Shuyu .
ACS CATALYSIS, 2024, 14 (21) :16353-16362
[23]   Controlled synthesis of M doped Co3O4 (M = Ce, Ni and Fe) on Ni foam as robust electrocatalyst for oxygen evolution reaction and urea oxidation reaction [J].
Wang, Haibin ;
Du, Xiaoqiang ;
Zhang, Xiaoshuang ;
Li, Lu .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2023, 630 :512-524
[24]   Co3O4/CeO2 p-n heterojunction construction and application for efficient photocatalytic hydrogen evolution [J].
Ma, Xiaohua ;
Liu, Yanan ;
Wang, Yuanpeng ;
Jin, Zhiliang .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2021, 46 (68) :33809-33822
[25]   Characterization of spinel Co3O4 and Li-doped Co3O4 thin film electrocatalysts prepared by the sol-gel route [J].
Svegl, F ;
Orel, B ;
Grabec-Svegl, I ;
Kaucic, V .
ELECTROCHIMICA ACTA, 2000, 45 (25-26) :4359-4371
[26]   Solution combustion synthesis of porous Co3O4 nanoparticles as oxygen evolution reaction (OER) electrocatalysts in alkaline medium [J].
Acedera, Rose Anne E. ;
Gupta, Gaurav ;
Mamlouk, Mohamed ;
Balela, Mary Donnabelle L. .
JOURNAL OF ALLOYS AND COMPOUNDS, 2020, 836
[27]   Oxygen vacancies and V co-doped Co3O4 prepared by ion implantation boosts oxygen evolution catalysis* [J].
Sun, Bo ;
He, Dong ;
Wang, Hongbo ;
Liu, Jiangchao ;
Ke, Zunjian ;
Cheng, Li ;
Xiao, Xiangheng .
CHINESE PHYSICS B, 2021, 30 (10)
[28]   Electrochemical Synthesis of Ni-SnO2 Composite Electrodes for Hydrogen Evolution Reaction in Alkaline Solution [J].
Xing, Le-Hong ;
Shi, Xin-Ting ;
Wang, Yi-Xin ;
Zhang, Li ;
Xu, Xiao-Yan ;
Meng, Fan-Xu ;
Li, Jing .
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE, 2022, 17 (05)
[29]   A Novel ZnO/Co3O4 Nanoparticle for Enhanced Photocatalytic Hydrogen Evolution under Visible Light Irradiation [J].
Tien, Tsung-Mo ;
Chen, Edward L. .
CATALYSTS, 2023, 13 (05)
[30]   Electrocatalytic properties of new spinel-type MMoO4 (M = Fe, Co and Ni) electrodes for oxygen evolution in alkaline solutions [J].
Singh, R. N. ;
Singh, J. P. ;
Singh, A. .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2008, 33 (16) :4260-4264
12345