N-doped TiO₂ nanotube arrays with uniformly embedded Co _x P nanoparticles for high-efficiency hydrogen evolution reaction.

ABSTRACT: Efficient and stable non-precious metal based electrocatalysts are crucial to the hydrogen evolution reaction (HER) in renewable energy conversion. Herein, Co _x P nanoparticles (NPs) are uniformly embedded in N-doped TiO₂ nanotube arrays (Co _x P/N-TiO₂ NTAs) by low-temperature phosphorization of the precursor of metallic cobalt NPs embedded in N-doped TiO₂ NTAs (Co/N-TiO₂ NTAs) which were fabricated by phase separation of CoTiO₃ NTAs in ammonia. Owing to the abundant exposed surface active sites of Co _x P NPs, tight contact between the Co _x P NPs and TiO₂ NTAs, fast electron transfer in N-doped TiO₂, and channels for effective diffusion of ion

SUBMITTER: Wei Y 

PROVIDER: S-EPMC9063528 | biostudies-literature | 2019 Apr

REPOSITORIES: biostudies-literature