High-throughput production of cheap mineral-based two-dimensional electrocatalysts for high-current-density hydrogen evolution

Chi Zhang, Yuting Luo, Junyang Tan, Qiangmin Yu, Fengning Yang, Zhiyuan Zhang, Liusi Yang, Hui-Ming Cheng and Bilu Liu ()
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Chi Zhang: Tsinghua University
Yuting Luo: Tsinghua University
Junyang Tan: Tsinghua University
Qiangmin Yu: Tsinghua University
Fengning Yang: Tsinghua University
Zhiyuan Zhang: Tsinghua University
Liusi Yang: Tsinghua University
Hui-Ming Cheng: Tsinghua University
Bilu Liu: Tsinghua University

Nature Communications, 2020, vol. 11, issue 1, 1-8

Abstract: Abstract The high-throughput scalable production of cheap, efficient and durable electrocatalysts that work well at high current densities demanded by industry is a great challenge for the large-scale implementation of electrochemical technologies. Here we report the production of a two-dimensional molybdenum disulfide-based ink-type electrocatalyst by a scalable exfoliation technique followed by a thermal treatment. The catalyst delivers a high current density of 1000 mA cm−2 at an overpotential of 412 mV for the hydrogen evolution. Using the same method, we produce a cheap mineral-based catalyst possessing excellent performance for high-current-density hydrogen evolution. Noteworthy, production rate of this catalyst is one to two orders of magnitude higher than those previously reported, and price of the mineral is five orders of magnitude lower than commercial Pt electrocatalysts. These advantages indicate the huge potentials of this method and of mineral-based cheap and abundant natural resources as catalysts in the electrochemical industry.

Date: 2020
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DOI: 10.1038/s41467-020-17121-8

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