Review—Electrodes Derived From Conducting Polymers and their Composites for Catalytic Conversion of Carbon Dioxide

Abstract

Conversion of carbon dioxide to value-added products (also termed as CO2 reduction reaction or CRR) is an exceptional route to diminish the CO2 amount in the atmosphere and meet the energy and global warming crisis. Within this framework, many types of research have been focused on introducing novel catalysts to reach an efficient system for the CRR. Conducting polymers (CPs) with appropriate electroactive characteristics have been used as effective catalysts for CRR for more than two decades. The polypyrrole (PPy) and polyaniline (PANI) are two of the most commonly studied CPs. Accordingly, this work presents a comprehensive review of the electrocatalytic performance of conducting polymers, including their composites, for CO2 reduction; a comparative approach is also followed to indicate their advantages and disadvantages over common metal-based heterogeneous electrocatalysts. The important perspectives and key challenges for developing these catalysts are also discussed.