Impact Electrochemistry of Layered Transition Metal Dichalcogenides.
作者： Chee Shan Lim , Shu Min Tan , Zdeněk Sofer , Martin Pumera
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摘要: Layered transition metal dichalcogenides (TMDs) exhibit paramount importance in the electrocatalysis of hydrogen evolution reaction. It is crucial to determine size electrocatalytic particles as well establish their activity, which occurs at edges these particles. Here, we show that individual TMD (MoS2, MoSe2, WS2, or WSe2; general MX2) nanoparticles impacting an electrode surface provide well-defined current “spikes” both cathodic and anodic regions. These spikes originate from direct oxidation (from M4+ M6+) region currents generated upon region. The positive correlation between frequency impacts concentration also demonstrated here, enabling determination colloidal form. In addition, can be evaluated using charge pa...
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