Oxygen Evolution Reaction Catalysts for Acidic-Media CO<sub>2</sub> Electrolyzers.
review · Level V
Where this comes from
- Record sourced from PubMed, PMID 41761652.
- Also identified by DOI 10.1002/adma.72644 and PMC identifier 13040538.
- Licence recorded as CC BY.
- The licence permits redistribution, so the abstract is shown in full and the full text is available from the publisher.
Abstract
Acidic-media electrochemical CO<sub>2</sub> reduction (CO<sub>2</sub>R) offers high single-pass CO<sub>2</sub> conversion (SPCE) and low purification cost, yet relies on scarce noble metals (e.g., iridium and ruthenium) for the anodic oxygen evolution reaction (OER). The limited abundance of these catalysts constrains large-scale deployment. Drawing lessons from proton-exchange membrane water electrolysis (PEMWE), this review integrates recent progress in acidic-media OER catalysis with system-level CO<sub>2</sub>R. It provides a cross-scale perspective from mechanistic understanding and theoretical modeling to electrode architecture and operational optimization, highlighting how noble- and non-noble-metal catalysts can be engineered for enhanced activity, stability, and resource efficiency. The review further outlines diagnostic and computational approaches that connect atomic-level descriptors with macroscopic durability. By bridging mechanistic insights and scalable system design, this work establishes a roadmap toward durable and economically viable acidic-media CO<sub>2</sub> electrolyzers.