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Unveiling the Mechanisms Ruling the Efficient Hydrogen Evolution Reaction with Mitrofanovite Pt3Te4.
Boukhvalov, Danil W; Cheng, Jia; D'Olimpio, Gianluca; Bocquet, François C; Kuo, Chia-Nung; Sarkar, Anan Bari; Ghosh, Barun; Vobornik, Ivana; Fujii, Jun; Hsu, Kuan; Wang, Li-Min; Azulay, Ori; Daptary, Gopi Nath; Naveh, Doron; Lue, Chin Shan; Vorokhta, Mykhailo; Agarwal, Amit; Zhang, Lixue; Politano, Antonio.
Affiliation
  • Boukhvalov DW; College of Science, Institute of Materials Physics and Chemistry, Nanjing Forestry University, Nanjing 210037, P. R. China.
  • Cheng J; Theoretical Physics and Applied Mathematics Department, Ural Federal University, Mira Street 19, 620002 Ekaterinburg, Russia.
  • D'Olimpio G; College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, Shandong, P. R. China.
  • Bocquet FC; INSTM and Department of Physical and Chemical Sciences, University of L'Aquila, via Vetoio, 67100 L'Aquila (AQ), Italy.
  • Kuo CN; Peter Grünberg Institut (PGI-3), Forschungszentrum Jülich, 52425 Jülich, Germany.
  • Sarkar AB; Jülich Aachen Research Alliance (JARA), Fundamentals of Future Information Technology, 52425 Jülich, Germany.
  • Ghosh B; Department of Physics, National Cheng Kung University, 1 Ta-Hsueh Road, 70101 Tainan, Taiwan.
  • Vobornik I; Department of Physics, Indian Institute of Technology Kanpur, Kanpur, 208016, India.
  • Fujii J; Department of Physics, Indian Institute of Technology Kanpur, Kanpur, 208016, India.
  • Hsu K; CNR-IOM, TASC Laboratory, Area Science Park-Basovizza, 34139 Trieste, Italy.
  • Wang LM; CNR-IOM, TASC Laboratory, Area Science Park-Basovizza, 34139 Trieste, Italy.
  • Azulay O; Department of Physics/Graduate Institute of Applied Physics, National Taiwan University, Taipei 10617, Taiwan.
  • Daptary GN; Department of Physics/Graduate Institute of Applied Physics, National Taiwan University, Taipei 10617, Taiwan.
  • Naveh D; Faculty of Engineering and Institute of Nanotechnology, Bar-Ilan University, Ramat-Gan 52900, Israel.
  • Lue CS; Department of Physics and Institure of Nanotechnology, Bar-Ilan University, Ramat-Gan 52900, Israel.
  • Vorokhta M; Faculty of Engineering and Institute of Nanotechnology, Bar-Ilan University, Ramat-Gan 52900, Israel.
  • Agarwal A; Department of Physics, National Cheng Kung University, 1 Ta-Hsueh Road, 70101 Tainan, Taiwan.
  • Zhang L; Charles University, V Holesovickǎch 2, Prague 8, 18000 Prague, Czechia.
  • Politano A; Department of Physics, Indian Institute of Technology Kanpur, Kanpur, 208016, India.
J Phys Chem Lett ; 12(35): 8627-8636, 2021 Sep 09.
Article in En | MEDLINE | ID: mdl-34472339
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.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: J Phys Chem Lett Year: 2021 Type: Article
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: J Phys Chem Lett Year: 2021 Type: Article