Coordination environment tuning of nickel sites by oxyanions to optimize methanol electro-oxidation activity.

ABSTRACT: To achieve zero-carbon economy, advanced anode catalysts are desirable for hydrogen production and biomass upgrading powered by renewable energy. Ni-based non-precious electrocatalysts are considered as potential candidates because of intrinsic redox attributes, but in-depth understanding and rational design of Ni site coordination still remain challenging. Here, we perform anodic electrochemical oxidation of Ni-metalloids (NiP_x, NiS_x, and NiSe_x) to in-situ construct different oxyanion-coordinated amorphous nickel oxyhydroxides (NiOOH-TO_x), among which NiOOH-PO_x shows optimal local coordination environment and boosts electrocatalytic activity of Ni sites towards selective oxidation of methanol to formate. Experiments and theoretical re

SUBMITTER: Li S 

PROVIDER: S-EPMC9133001 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature