Stable Ni(II) sites in Prussian blue analogue for selective, ampere-level ethylene glycol electrooxidation.

ABSTRACT: The industrial implementation of coupled electrochemical hydrogen production systems necessitates high power density and high product selectivity for economic viability and safety. However, for organic nucleophiles (e.g., methanol, urea, and amine) electrooxidation in the anode, most catalytic materials undergo unavoidable reconstruction to generate high-valent metal sites under harsh operation conditions, resulting in competition with oxygen evolution reaction. Here, we present unique Ni(II) sites in Prussian blue analogue (NiFe-sc-PBA) that serve as stable, efficient and selective active sites for ethylene glycol (EG) electrooxidation to formic acid, particularly at ampere-level current densities. Our in situ/operando characterizations demonstrate the robustness of Ni(II) sites during EG

SUBMITTER: Liu JK 

PROVIDER: S-EPMC11992074 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature