Structural Transformation and Degradation of Cu Oxide Nanocatalysts during Electrochemical CO₂ Reduction.

ABSTRACT: The electrochemical CO₂ reduction reaction (CO₂RR) holds enormous potential as a carbon-neutral route to the sustainable production of fuels and platform chemicals. The durability for long-term operation is currently inadequate for commercialization, however, and the underlying deactivation process remains elusive. A fundamental understanding of the degradation mechanism of electrocatalysts, which can dictate the overall device performance, is needed. In this work, we report the structural dynamics and degradation pathway of Cu oxide nanoparticles (CuO_x NPs) during the CO₂RR by using in situ small-angle X-ray scattering (SAXS) and X-ray absorption spectroscopy (XAS). The in situ SAXS reveals a reduction in the size of NPs when subjected to

SUBMITTER: Lee SH 

PROVIDER: S-EPMC11869297 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature