期刊
JOURNAL OF ENERGY CHEMISTRY
卷 29, 期 -, 页码 79-87出版社
ELSEVIER
DOI: 10.1016/j.jechem.2018.02.005
关键词
Co-deposition; Impedance spectroscopy; Titanium oxide; Ageing process; Raman spectroscopy
资金
- Agencia Nacional de Promocion Cientifica y Tecnologica [PICT 1818]
- CONICET [PIP 112 201301 00808]
- CONICET
Nickel-TiO2 hybrid catalysts are synthesized by electrodeposition and their catalytic activity with respect to the hydrogen evolution reaction is analyzed. Two types of titanium oxide particles, which are commercial particles of dense TiO2 and mesoporous TiO2 particles synthesized by an aerosol method, are incorporated into the matrix of the nickel catalyst. Both nickel catalysts containing TiO2 particles presented higher catalytic activity than the conventional nickel Watts catalyst. Mesoporous TiO2-modified nickel catalyst showed the highest catalytic activity towards HER in alkaline medium. In addition, this type of nickel catalyst increases its catalytic activity after ageing treatment, which is an indication of an increase in the electro-active area of the electrode. (C) 2018 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. and Science Press. All rights reserved.
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