In situ surface reconstruction synthesis of a nickel oxide/nickel heterostructural film for efficient hydrogen evolution reaction.

ABSTRACT

A simple method is provided to achieve in situ surface reconstruction synthesis of a heterostructural NiO/Ni film on carbon cloth (NiO/Ni@CC) for the hydrogen evolution reaction (HER). This ultrafast reconstruction process brings a hydrophilic surface and abundant heterostructures with rich oxygen vacancies exhibiting a low HER overpotential and remarkable stability.