Phase-segregated NiP _x @FeP _y O _z core@shell nanoparticles: ready-to-use nanocatalysts for electro- and photo-catalytic water oxidation through in situ activation by structural transformation and spontaneous ligand removal.

ABSTRACT: The high overpotential of the oxygen evolution reaction is a critical issue to be overcome to realize efficient overall water splitting and enable hydrogen generation powered by sunlight. Homogeneous and stable nanoparticles (NPs) dispersed in solvents are useful as both electrocatalysts and cocatalysts of photocatalysts for the electro- and photo-catalytic oxygen evolution reaction, respectively, through their adsorption on various electrode substrates. Here, phase-segregated NiP _x @FeP _y O _z core@shell NPs are selectively synthesized by the reaction of Fe(CO)₅ with amorphous NiP _x seed-NPs. The NiP _x @FeP _y O _z NPs on conductive substrates exhibit highe

SUBMITTER: Saruyama M 

PROVIDER: S-EPMC5982198 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature