TY  - JOUR
AU  - Boukhvalov, Danil W.
AU  - Cheng, Jia
AU  - D’Olimpio, Gianluca
AU  - Bocquet, François C.
AU  - Kuo, Chia-Nung
AU  - Sarkar, Anan Bari
AU  - Ghosh, Barun
AU  - Vobornik, Ivana
AU  - Fujii, Jun
AU  - Hsu, Kuan
AU  - Wang, Li-Min
AU  - Azulay, Ori
AU  - Daptary, Gopi Nath
AU  - Naveh, Doron
AU  - Lue, Chin Shan
AU  - Vorokhta, Mykhailo
AU  - Agarwal, Amit
AU  - Zhang, Lixue
AU  - Politano, Antonio
TI  - Unveiling the Mechanisms Ruling the Efficient Hydrogen Evolution Reaction with Mitrofanovite Pt 3 Te 4
JO  - The journal of physical chemistry letters
VL  - 12
IS  - 35
SN  - 1948-7185
CY  - Washington, DC
PB  - ACS
M1  - FZJ-2021-03382
SP  - 8627 - 8636
PY  - 2021
AB  - 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.
LB  - PUB:(DE-HGF)16
C6  - pmid:34472339
UR  - <Go to ISI:>//WOS:000696175700025
DO  - DOI:10.1021/acs.jpclett.1c01261
UR  - https://juser.fz-juelich.de/record/894768
ER  -