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Metals 2017, 7(6), 211; doi:10.3390/met7060211

Hydrogen Evolution Reaction Property in Alkaline Solution of Molybdenum Disulfide Modified by Surface Anchor of Nickel–Phosphorus Coating

School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China
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Academic Editor: Mario Fafard
Received: 3 May 2017 / Revised: 1 June 2017 / Accepted: 3 June 2017 / Published: 7 June 2017
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Abstract

Molybdenum disulfide (MoS2) is unfavorable for practical application in the hydrogen evolution reaction (HER) process due to its inert basal surface, inferior conductivity, and limited amount of active edge sites. For the purpose of enhancing the HER performance of this catalyst, the HER activity of its basal surface should be increased. Herein, three types of nickel-phosphorus (Ni–P) coatings—namely, low phosphorus (LP), medium phosphorus (MP) and high phosphorus (HP) —were anchored onto the surfaces of MoS2 nanoparticles via an electroless plating process; thus, three Ni–P/MoS2 composites (Ni–LP/MoS2, Ni–MP/MoS2, and Ni–HP/MoS2) were fabricated. Crystal structures, morphologies, chemical components, and HER performances of each in an alkaline solution were characterized. Both Ni–LP/MoS2 and Ni–MP/MoS2 showed a crystal nature, while the amorphous feature for Ni–HP/MoS2 was validated. The three Ni–P/MoS2 composites exhibited a higher HER activity than the pure MoS2. The HER performance of the Ni–MP/MoS2 composite was more outstanding than those of other two composites, which could be attributed to the presence of metastable nickel phosphides, and the excellent conductivity of Ni–MP coating anchored on the basal surface of MoS2. View Full-Text
Keywords: hydrogen evolution reaction; molybdenum disulfide; nickel–phosphorus coating; electroless plating; alkaline electrolyte hydrogen evolution reaction; molybdenum disulfide; nickel–phosphorus coating; electroless plating; alkaline electrolyte
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MDPI and ACS Style

He, J.; Song, L.; Yan, J.; Kang, N.; Zhang, Y.; Wang, W. Hydrogen Evolution Reaction Property in Alkaline Solution of Molybdenum Disulfide Modified by Surface Anchor of Nickel–Phosphorus Coating. Metals 2017, 7, 211.

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