Preparation of nanoporous molybdenum film by dealloying an immiscible Mo–Zn system for hydrogen evolution reaction†
Abstract
A nanoporous Mo film was prepared by dealloying an immiscible Mo–Zn system. The successful dealloying was due to the long-distance diffusion of Mo atoms (∼600 nm) in the nanocrystalline Zn layer during annealing. The obtained NPMF exhibited a good activity toward hydrogen evolution reaction, with a Tafel slope of 85 mV dec−1.