writer：S. S. Ji, Z. Yang, C. Zhang, Z. Y. Liu, W. W. Tjiu, I. Y. Phang, Z. Zhang, J. S. Pan, T. X. Liu*
keywords：Exfoliated MoS2 nanosheets, Electrocatalysts, Hydrogen evolution reactiona
source：期刊
specific source：Electrochimica Acta, 2013, 109, 269-275.
Issue time：2013年
An efficient electrocatalyst for hydrogen evolution has been developed based on liquid exfoliation of bulk MoS₂ via a direct dispersion and ultrasonication method. Transmission electron microscopy and atomicforce microscopy measurements show that the exfoliated MoS₂ consists of two-dimensional nanosheets. The exfoliated MoS₂ nanosheets modified glass carbon electrode (E-MoS₂/GCE) with various loadings is fabricated via a drop-casting method. The electrocatalytic activity of E-MoS₂/GCE toward hydrogenevolution reaction is examined using linear sweep voltammetry. It is shown that the E-MoS₂/GCE withan electrode loading of 48 ug cm^-2 exhibits a high catalytic activity for hydrogen evolution with a lowoverpotential (-0.12 V) and a high current density (1.26 mA cm^-2, at n = 150 mV).