▎ 摘　　要

A novel electrocatalyst containing different percentages of iron-titanium mixed oxide onto graphene oxide (GO) support was prepared by embeddingviathe thermal decomposition method (TD) and was coated on a Cu substrate through facile electroless Ni-Co-P plating. The embedding of GO for improving the catalytic properties of the composites towards electrocatalytic hydrogen evolution reaction (HER) in alkaline media. The optimized mixed oxide-embedded GO exhibited superior electrocatalytic activity, which was attributed to the favourable surface structure and the electrochemical properties that were further confirmed by X-ray diffraction (XRD), HRTEM, SEM-EDX, XPS analysis, and electrochemical analysis. It was found that a benchmark current density of 6.02 mA cm(-2)has been achieved at an overpotential of 104 mV dec(-1)in 1 M KOH with a low Tafel slope of 37 mV dec(-1). The prepared catalyst was economically viable and its performance was consistent over a long duration of time. The remarkable activity of the FTG-incorporated electrode can be ascribed to the synergetic effect of Ti, Ni and P elements over the reactive sites and also due to the increased electrical conductivity. The binder-free coating of active ingredients over the working electrode surface also enriches the catalytic behaviour. These findings may open a new insight into the design and construction of novel, efficient, and durable electrocatalysts for HER.