journal article·2017-03-08

Regulated Synthesis of Mo Sheets and Their Derivative MoX Sheets (X: P, S, or C) as Efficient Electrocatalysts for Hydrogen Evolution Reactions

Jin Jia, Weijia Zhou, Guixiang Li, Linjing Yang, Zhaoqian Wei, Lindie Cao, Yisheng Wu, Kai Zhou, Shaowei Chen

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Abstract

Electrochemical H 2 generation from H 2 O has been focused on the exploration of non-noble metals as well as earth-rich catalysts. In our practical work, we provide a simple cost-efficient fabrication process to prepare large Mo sheets via the controlled equilibrium between sublimation of MoO 3 and reduction of H 2 . Porous MoP sheets were synthesized from the obtained Mo sheets as the Mo source and template which exhibit notable activity in the hydrogen evolution reaction with a low onset potential of −88 mV vs RHE, small Tafel value of 54.5 mV/dec, and strong catalytic stability. With Mo sheets as the universal Mo source and template, MoS 2 and Mo 2 C sheets were synthesized by a similar process, and the corresponding catalytic activities were calculated by density functional theory.
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Research context

OpenAlex topics: Electrocatalysts for Energy Conversion · Fuel Cells and Related Materials · Advanced battery technologies research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Center, Guangzhou, Guangdong 510006, China

Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, Guangdong 510006, China

Department of Chemistry and Biochemistry, University of California, 1156 High Street, Santa Cruz, California 95064, United States

Funding

National Natural Science Foundation of China · Central Committee of the Communist Party of China · Guangdong Province

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