Please use this identifier to cite or link to this item: http://elar.urfu.ru/handle/10995/118125
Title: Unveiling the Mechanisms Ruling the Efficient Hydrogen Evolution Reaction with Mitrofanovite Pt3Te4
Authors: Boukhvalov, D. W.
Cheng, J.
D'Olimpio, G.
Bocquet, F. C.
Kuo, C. -N.
Sarkar, A. B.
Ghosh, B.
Vobornik, I.
Fujii, J.
Hsu, K.
Wang, L. -M.
Azulay, O.
Daptary, G. N.
Naveh, D.
Lue, C. S.
Vorokhta, M.
Agarwal, A.
Zhang, L.
Politano, A.
Issue Date: 2021
Publisher: American Chemical Society
Citation: Unveiling the Mechanisms Ruling the Efficient Hydrogen Evolution Reaction with Mitrofanovite Pt3Te4 / D. W. Boukhvalov, J. Cheng, G. D'Olimpio et al. // Journal of Physical Chemistry Letters. — 2021. — P. 8627-8636.
Abstract: 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. © 2021 American Chemical Society.
Keywords: DENSITY FUNCTIONAL THEORY
ELECTROCATALYSTS
ELECTRODES
HYDROGEN
AMBIENT STABILITY
CATALYTIC PERFORMANCE
ELECTRICAL CONDUCTIVITY
ELECTROCATALYTIC
ELECTROCATALYTIC ACTIVITY
LONG TERM STABILITY
PHYSICO-CHEMICAL MECHANISMS
SURFACE SCIENCE TECHNIQUES
HYDROGEN EVOLUTION REACTION
URI: http://elar.urfu.ru/handle/10995/118125
Access: info:eu-repo/semantics/openAccess
RSCI ID: 47093721
SCOPUS ID: 85115169066
WOS ID: 000696175700025
PURE ID: 23698936
ISSN: 19487185
DOI: 10.1021/acs.jpclett.1c01261
metadata.dc.description.sponsorship: Deutsche Forschungsgemeinschaft, DFG: SFB 1083; National Natural Science Foundation of China, NSFC: 21775078, 22075159, tsqn202103058; Ministry of Education and Science of the Russian Federation, Minobrnauka: FEUZ-2020-0060
L.Z. acknowledges funding by the National Natural Science Foundation of China (Nos. 21775078 and 22075159) and Taishan Scholar Program (No. tsqn202103058). F.C.B. acknowledges funding by the DFG through the SFB 1083 Structure and Dynamics of Internal Interfaces (Project A 12). D.W.B. acknowledged support Ministry of Science and Higher Education of the Russian Federation (through the basic part of the government mandate, Project No. FEUZ-2020-0060) and Jiangsu Innovative and Entrepreneurial Talents Project. I.V. and J.F. thank NFFA-Trieste.
Appears in Collections:Научные публикации ученых УрФУ, проиндексированные в SCOPUS и WoS CC

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