HER activity of nanosheets of 2D solid solutions of MoSe2 with MoS2 and MoTe2
Source abstract
Abstract
MoSxSe(2−x) and MoSexTe(2−x) solid solutions with various S:Se and Se:Te ratios have been prepared by high temperature solid-state reactions, and thinned down to few-layers by Li-intercalation followed by exfoliation. Photocatalytic as well as electrocatalytic hydrogen evolution reaction (HER) activity of exfoliated MoSxSe(2−x)/MoSexTe(2−x) 2D nanosheets have been studied. It is found that Se-rich compositions exhibit good HER activity. The MoS0.5Se1.5 nanosheets show high photocatalytic HER activity yielding 29.6 mmol h−1 g−1 of H2, while MoS1.0Se1.0 displays good electrocatalytic activity with an onset potential of −0.220 V. Amongst MoSexTe(2−x) solid solutions, MoSe1.8Te0.2 shows relatively high photocatalytic HER activity (5.0 mmol h−1 g−1), while MoSe1.0Te1.0 exhibits a low onset potential (−0.190 V vs. RHE).
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: 2D Materials and Applications · Advanced Photocatalysis Techniques · MXene and MAX Phase Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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