%0 Journal Article
%A Boukhvalov, Danil W.
%A Cheng, Jia
%A D’Olimpio, Gianluca
%A Bocquet, François C.
%A Kuo, Chia-Nung
%A Sarkar, Anan Bari
%A Ghosh, Barun
%A Vobornik, Ivana
%A Fujii, Jun
%A Hsu, Kuan
%A Wang, Li-Min
%A Azulay, Ori
%A Daptary, Gopi Nath
%A Naveh, Doron
%A Lue, Chin Shan
%A Vorokhta, Mykhailo
%A Agarwal, Amit
%A Zhang, Lixue
%A Politano, Antonio
%T Unveiling the Mechanisms Ruling the Efficient Hydrogen Evolution Reaction with Mitrofanovite Pt 3 Te 4
%J The journal of physical chemistry letters
%V 12
%N 35
%@ 1948-7185
%C Washington, DC
%I ACS
%M FZJ-2021-03382
%P 8627 - 8636
%D 2021
%X By means of electrocatalytic tests, surface-science techniques and density functional theory, we unveil the physicochemical mechanisms ruling the electrocatalytic activity of recently discovered mitrofanovite (Pt3Te4) mineral. Mitrofanovite represents a very promising electrocatalyst candidate for energy-related applications, with a reduction of costs by 47% compared to pure Pt and superior robustness to CO poisoning. We show that Pt3Te4 is a weak topological metal with the Z2 invariant, exhibiting electrical conductivity (∼4 × 106 S/m) comparable with pure Pt. In hydrogen evolution reaction (HER), the electrode based on bulk Pt3Te4 shows a very small overpotential of 46 mV at 10 mA cm–2 and a Tafel slope of 36–49 mV dec–1 associated with the Volmer–Heyrovsky mechanism. The outstanding ambient stability of Pt3Te4 also provides durability of the electrode and long-term stability of its efficient catalytic performances.
%F PUB:(DE-HGF)16
%9 Journal Article
%$ pmid:34472339
%U <Go to ISI:>//WOS:000696175700025
%R 10.1021/acs.jpclett.1c01261
%U https://juser.fz-juelich.de/record/894768