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Amorphous MoS2 porous thin films (denoted as MoS2 PTFs) with high activity towards hydrogen evolution reaction (HER) were fabricated by in situ sulfuration of a Mo substrate. A small overpotential (~120 mV) and a low Tafel slope (~41 mV dec(-1)) can be observed and their excellent performance was ascribed to the combination of the amorphous feature, porous structure and optimized thickness.
Lu et al. (Tue,) studied this question.
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