A hybrid of NiMo-Mo2C/C as non-noble metal electrocatalyst for hydrogen evolution reaction in an acidic solution. (20th December 2016)

• Record Type: Journal Article
• Authors: Zhang, Yan; Wang, Yanhui; Jia, Shaopei; Xu, Hanqing; Zang, Jianbing; Lu, Jing; Xu, Xipeng
• Is Part Of: Electrochimica acta. Volume 222(2016)
• Page Start: 747
• Page End: 754
• Publication Date: 2016-12-20
• Subjects: hydrogen evolution reaction -- nickel molybdenum -- molybdenum carbide -- non-noble metal electrocatalyst; Electrochemistry -- Periodicals; Electrochemistry, Industrial -- Periodicals; 541.37
• DOI: 10.1016/j.electacta.2016.11.031
• Languages: English
• ISSNs: 0013-4686

Abstract

Highlights: NiMo-Mo2 C/C hybrid non-noble electrocatalyst is synthesized by a two-step method. The NiMo-Mo2 C/C exhibits a high electrocatalytic activity and stability for HER. The high catalytic activity is due to electrochemical performance of NiMo and Mo2 C. The high stability of NiMo-Mo2 C/C can be ascribed to the appearance of Mo2 C. Abstract: Highly active and stable of carbon supported nickel molybdenum alloy and molybdenum carbide hybrid electrocatalyst (NiMo-Mo2 C/C) has been developed for hydrogen evolution reaction (HER) in an acidic solution. The NiMo-Mo2 C/C electrocatalyst was synthesized by a two-step microwave-assisted deposition/carbonthermal reduction method. Compared with commercial Mo2 C, it is found that NiMo-Mo2 C/C showed much better electrocatalytic activity for HER with a small onset overpotential of 90 mV (j = 1 mA cm −2 ) and Tafel slope of 73 mV dec −1 as well as good stability in acidic solution. Such enhanced catalytic activities may originate from its anchored structure and electrochemical performance of NiMo and Mo2 C.