Acetate promotes the formation of NiRu/NiO towards efficient hydrogen evolution†
Abstract
The introduction of acetate in the precursor of metal–organic frameworks (MOFs) turns the final product from MOFs to NiRu/Ni(OH)2. Followed by annealing treatment, the obtained NiRu/NiO catalyst exhibits high hydrogen evolution reaction (HER) activity with a low overpotential (18 mV at 10 mA cm−2), and a small Tafel slope of 43.3 mV dec−1 in alkaline electrolyte.