Unveiling the Mechanisms Ruling the Efficient Hydrogen Evolution Reaction with Mitrofanovite Pt3Te4
Danil W. Boukhvalov,Danil W. Boukhvalov,Jia Cheng,Gianluca D'Olimpio,François C. Bocquet,Chia Nung Kuo,Anan Bari Sarkar,Barun Ghosh,Ivana Vobornik,Jun Fujii,Kuan Hsu,Limin Wang,Ori Azulay,Gopi Nath Daptary,Doron Naveh,Chin-Shan Lue,Mykhailo Vorokhta,Amit Agarwal,Lixue Zhang,Antonio Politano +19 more
TLDR
In this paper, the physicochemical mechanisms ruling the electrocatalytic activity of recently discovered mitrofanovite (Pt3Te4) mineral were revealed by means of electrocatalysis tests, surface-science techniques and density functional theory.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 Z 2 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.read more
Citations
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Nitrogen Doped Carbon Encapsulated Hierarchical NiMoN as Highly Active and Durable HER Electrode for Repeated ON/OFF Water Electrolysis
Rufei Zhang,Lidong Xu,Zhao Hui Wu,Linan Wang,Jinpeng Zhang,Yangjia Tang,Likun Xu,Ao Xie,Yong mei Chen,Hailong Zhang,Pingyu Wan +10 more
TL;DR: In this paper , a hydrogen evolution reaction (HER) electrode with hierarchical NiMoN microrod arrays encapsulated by nitrogen doped ultra-thin carbon layer and in-situ grown on nickel foam (labeled NF) was reported.
Journal ArticleDOI
Efficient Hydrogen Evolution Reaction with Bulk and Nanostructured Mitrofanovite Pt3Te4
Gianluca D'Olimpio,Lixue Zhang,Chia Nung Kuo,Daniel Farías,Luca Ottaviano,Chin-Shan Lue,Jun Fujii,Ivana Vobornik,Amit Agarwal,Piero Torelli,Danil W. Boukhvalov,Antonio Politano +11 more
TL;DR: In this paper , the key features of electrocatalysis with mitrofanovite (Pt3Te4), a recently discovered mineral with superb performances in hydrogen evolution reaction, were discussed.
Journal ArticleDOI
Experimental and Theoretical Insights into Enhanced Hydrogen Evolution over PtCo Nanoalloys Anchored on a Nitrogen-Doped Carbon Matrix.
Jiangna Guo,Jinlong Luoyang Liu,Xichen Mao,Shengqi Chu,Xinxin Zhang,Ziyu Luo,Jie Li,Bo Wang,Chuankun Jia,Dong Qian +9 more
TL;DR: In this article , a uniform PtCo nanoparticles are grown on N-doped carbon frameworks via pyrolyzing Pt and Co ions adsorbed polyaniline, whereby the nanostructure of the nanoalloys can be effectively tuned by controlling the calcination temperature.
Journal ArticleDOI
Atomic order transition of TiNiPt nanoparticles supported on carbon nanotubes for stable hydrogen evolution reaction
TL;DR: In this paper , atomically ordered and disordered Ti50NixPt50-x/CNT catalysts are presented for hydrogen evolution reaction (HER) due to their unique surface and electronic structures.
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Exfoliation of layered double hydroxides for enhanced oxygen evolution catalysis
Fang Song,Xile Hu +1 more
TL;DR: This work demonstrates the promising catalytic activity of single-layered double hydroxides for the oxygen evolution reaction and reports an orthogonal approach to improve the activity of catalysts without alternating their compositions or structures.