Abstract
A composite of a transition metal chalcogenide (TMC), hybridized with reduced graphene (Co1.3Ni4.1Mo4.6S15/rGO), was synthesized by a simple and low-cost hydrothermal method. The nanohybrid was characterized by XRD and EDX methods. Afterwards, the morphology of the prepared material was determined by FESEM and HRTEM images. Followingly, the structure of Co1.3Ni4.1Mo4.6S15 was found effective in electrochemical hydrogen evolution reaction (HER) in acidic setting. So that, the polarization curves showed onset potential about 100 mV and the Tafel slope equal to 53 mV.dec−1 in the optimum level of H3O+ (pH = 1). Finally, the synthetic nanomaterial was introduced as an effective, inexpensive and stable catalyst for HER in acidic media.
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