Krishna Kanta Haldar, Imtiaz Ahmed, Rathindranath Biswas, Shouvik Mete, Ranjit A. Patil, Yuan-Ron Ma
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引用次数: 0
摘要
电化学(EC)水分解是一种很有前途的可再生氢(H2)燃料生成和氧(O2)演化方法。具有低过电位的二硫化钼(MoS2)/五氧化钒(V2O5)复合结构电催化剂是一种很有前途的替代能源阳极和阴极材料。我们通过水热法制备了花状的MoS2/V2O5复合材料，其中V2O5生长在MoS2花瓣表面。独特的花型复合结构减轻了电极材料的表面膨胀。电化学研究表明，该复合材料具有较好的稳定性，过电位低，Tafel斜率小。结果表明，MoS2/V2O5复合材料在10 mA cm−2的电流密度下表现出稳定的速率性能，表明该复合材料可能是析氧和析氢反应的良好候选材料。图形抽象
Efficient MoS2/V2O5 Electrocatalyst for Enhanced Oxygen and Hydrogen Evolution Reactions
Electrochemical (EC) water splitting is a promising approach for the generation of renewable hydrogen (H2) fuels and oxygen (O2) evolution. Composite structured molybdenum disulphide (MoS2)/vanadium pentoxide (V2O5) with low overpotential is a promising electrocatalyst for anodic and cathodic material for an alternative energy source. We fabricated a flower shape MoS2/V2O5 composite via a hydrothermal approach where V2O5 grew on the surface of the MoS2 petals. The unique flower-type composite structure alleviates the surface expansion of electrode material. The electrochemical studies show that the composite possesses good stability with low overpotential and smaller Tafel slope compared to its constituents. It has been found that the MoS2/V2O5 composite exhibits a stable rate performance under the current density of 10 mA cm−2 which indicates that the MoS2/V2O5 composite might be a good candidate for both oxygen and hydrogen evolution reactions.
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