Ultrathin Fe-NiO nanosheets as catalytic charge reservoirs for a planar Mo-doped BiVO₄ photoanode.

ABSTRACT: The energy conversion efficiency of a photoelectrochemical system is intimately connected to a number of processes, including light absorption, charge excitation, separation and transfer processes. Of these processes, the charge transfer rate at the electrode|electrolyte interface is the slowest and, hence, the rate-limiting step causing charge accumulation. Such an understanding underpins efforts focused on applying highly active electrocatalysts, which may contribute to the overall performance by augmenting surface charge accumulation, prolonging charge lifetime or facilitating charge transfer. How the overall effect depends on these individual possible mechanisms has been difficult to study previously. Aiming at advancing knowledge about this important interface, we applied first-order

SUBMITTER: Li L 

PROVIDER: S-EPMC6296167 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature