Work

System Design in CO2 Electrolysis: Integrating Value-Added Anode Reactions with Cathodic Reduction

Year: 2025

Type: article

Abstract: Paired electrolysis represents a paradigm shift in overcoming the energy intensity of conventional CO2 electrolysis. By supplanting the oxygen evolution reaction with value-added anodic oxidations, this technology simultaneously slashes energy demands and diversifies output. This review critically synthesizes design principles for pairing these anodic reactions with two key cathode pathways, namely CO2 electroreduction and electrocarboxylation, supported by an analysis of pioneering systems from the past three years. We further explore advanced reactor designs for co-production, and the pivotal role of operando characterization and machine learning in unraveling complex mechanisms. We conclude with a perspective on the key challenges and pathways to industrial adoption, aiming to bridge fundamental advances with practical implementation.

Source: Molecules

DOI: 10.3390/molecules30224485

Authors: Yuehui Zhai, Chong Wang, Zheng Chen

Institutions: University of Electronic Science and Technology of China, Jilin University

Language: English

Topic: CO2 Reduction Techniques and Catalysts

Subfield: Renewable Energy, Sustainability and the Environment

Field: Energy

Domain: Physical Sciences

SDGs: Affordable and clean energy, Climate action, Industry, innovation and infrastructure

Open Access status: gold

Estimated APC paid: $3,258