Tunable B-Doped Cobalt Phosphide Nanosheets Engineered via Phosphorus Activation of Co-MOFs for High Efficiency Alkaline Water-Splitting.

ABSTRACT: Introducing secondary heteroatoms and simultaneous in situ surface modification can enhance electrocatalysts by affecting their porosity for adjusting electrochemically active surface area (ECSA), number of active sites, and electronic properties, thus mitigating the sluggish kinetics of oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) in alkaline media. Here, mesoporous 3D heterostructures of boron-doped cobalt phosphide@nitrogen-doped carbon nanosheet network arrays are successfully grown on Ni foam as free-standing bifunctional electrocatalysts with controlled phosphorous levels (B-CoP_x@NC/NF, x = 0.25, 0.5, and 1). Boron doping induces the Co active sites to bind O* and OOH* intermediates. Meanwhile, an optimal phosphorous content also leads to ideal ads

SUBMITTER: Cha DC 

PROVIDER: S-EPMC12332835 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature