Mitrofanovite, Layered Platinum Telluride, for Active Hydrogen Evolution
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초록
내용
Two-dimensional (2D) layered catalysts have been considered as a class of ideal catalysts for hydrogen evolution reaction (HER) because of their abundant active sites with almost zero Gibbs energy change for hydrogen adsorption. Despite the promising performance, the design of stable and economic electrochemical catalyst based on 2D materials remains to be resolved for industrial-scale hydrogen production. We studied layered platinum tellurides, mitrofanovite Pt3Te4, which serves as an efficient and stable catalyst for HER together with a high current density exceeding 7000 mA/cm2. Theoretical calculations exhibit that Pt3Te4 with numerous edges shows near-zero Gibbs free-energy change of hydrogen adsorption, which shows the excellent HER performance as well as the extremely large exchange current density for massive hydrogen production. [Reference] D. Bae et al. ACS Appl. Mater. Interfaces 2021, 13, 2437−2446