2016-Sustainable Industrial Processing Summit
SIPS 2016 Volume 11: Physics, Advanced/Multifunctional Materials, Composite, Quasi-crystals, Coating

Editors:Kongoli F, Marquis F, Lu L, Xia H, Masset P, Rokicki P
Publisher:Flogen Star OUTREACH
Publication Year:2016
Pages:180 pages
ISBN:978-1-987820-56-0
ISSN:2291-1227 (Metals and Materials Processing in a Clean Environment Series)
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    Time-dependent porous structure evolution of NiMo film electrodeposited under super gravity field as electrocatalyst for hydrogen evolution reaction

    Xiangtao Yu1; Mingyong Wang2; Zhi Wang3; Xuzhong Gong4; Zhancheng Guo5;
    11. STATE KEY LABORATORY OF ADVANCED METALLURGY, UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING, Beijing, China; 2NATIONAL ENGINEERING LABORATORY FOR HYDROMETALLURGICAL CLEANER PRODUCTION TECHNOLOGY, KEY LABORATORY OF GREEN PROCESS AND ENGINEERING, INSTITUTE OF PROCESS ENGINEERING, CHINESE ACADEMY OF SCIENCES, BE, Beijing, China; 3INSTITUTE OF PROCESS ENGINEERING. CHINESE ACADEMY OF SCIENCES, Beijing, China; 4INSTITUTE OF PROCESS ENGINEERING, CHINESE ACADEMY OF SCIENCES, Beijing, China; 5STATE KEY LABORATORY OF ADVANCED METALLURGY, UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING, Beijing, China;
    Type of Paper: Regular
    Id Paper: 76
    Topic: 21

    Abstract:

    Noble metal free electrocatalysts with a large effective active area and good long-term stability for hydrogen evolution reaction (HER) are of critical importance for sustainable hydrogen production from water electrolysis. In this work, 3D porous NiMo films were electrodeposited under super gravity field. The surface structure evolution of NiMo films dependent on electrodeposition time was studied. The catalytic activities and stability of the NiMo films for HER were investigated. It was found that an induction period for porous structure formation existed under super gravity field. During electrodeposition, compact NiMo film with dispersed protuberances was firstly generated. Then, porous NiMo films were obtained with the increase of electrodeposition time due to the rapid growth of protuberances. The compact-porous graded NiMo films were prepared. However, compact NiMo film was only electrodeposited under normal gravity condition. The porous NiMo film with large surface roughness exhibited high catalytic activity and good long-term stability for HER in alkaline solution.

    Keywords:

    Cleanliness; Energy; Hydrogen; Materials; Renewable; Technologies;

    Cite this article as:

    Yu X, Wang M, Wang Z, Gong X, Guo Z. Time-dependent porous structure evolution of NiMo film electrodeposited under super gravity field as electrocatalyst for hydrogen evolution reaction. In: Kongoli F, Marquis F, Lu L, Xia H, Masset P, Rokicki P, editors. Sustainable Industrial Processing Summit SIPS 2016 Volume 11: Physics, Advanced/Multifunctional Materials, Composite, Quasi-crystals, Coating. Volume 11. Montreal(Canada): FLOGEN Star Outreach. 2016. p. 81-82.