The development of the low-cost, highly efficient, and environment-friendly electrocatalyst in hydrogen evolution reaction (HER) is important to solve the increasingly severe energy crisis and environmental pollution. In this work, the Cu3BiS3/copper foam (CF) was synthesized by a one-step hydrothermal method, where the unique flower-like structures formed with the Cu3BiS3 nanosheets were in situ grown on the 3D CF. The electrode of Cu3BiS3/CF exhibits an excellent HER performance with an onset potential of 273 mV and a Tafel slope of 143 mV de...
