A fast and general approach to produce a carbon coated Janus metal/oxide hybrid for catalytic water splitting
- 13 February 2021
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of Materials Chemistry A
- Vol. 9 (12), 7606-7616
- https://doi.org/10.1039/d0ta12021a
Abstract
Designing carbon coated core@shell structure (M@C) is a popular and effective strategy to boost the catalytic performance. However, most synthesis technologies for M@C reported up to now are relatively complicated and time consuming (multiple steps for at least a few hours). Herein, a rapid one-step process (4 min only), plasma electrolytic deposition, was developed to fabricate CoMo/CoMoOx@C with a Janus metal/oxide core in a carbon shell, which realized a significantly enhanced hydrogen evolution reaction (HER). More interestingly, this synthesis method is extendable to many other metals. The resulting material can be easily optimized by tuning of the metal/oxide core and/or the carbon shell through a wide range of parameters. NiCoMo/NiCoMoOx@C was better than commercial Pt/C in the HER catalysis, and NiFeMo/NiFeMoOx was among the best overall water splitting catalysts reported very recently. This work presents a fast and general technique for the design of electrocatalysts with intriguing properties.Keywords
Funding Information
- National Natural Science Foundation of China (22002192, 61604058)
- Natural Science Foundation of Guangdong Province
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