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What We Currently Know about Carbon‐Supported Metal and Metal Oxide Nanomaterials in Electrochemical CO 2 Reduction
Author(s) -
Suominen Milla,
Kallio Tanja
Publication year - 2021
Publication title -
chemelectrochem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 59
ISSN - 2196-0216
DOI - 10.1002/celc.202100345
Subject(s) - electrocatalyst , renewable energy , nanotechnology , oxide , greenhouse gas , nanomaterials , materials science , electrochemistry , transition metal , carbon fibers , electrode , catalysis , chemistry , metallurgy , composite number , engineering , ecology , biochemistry , composite material , electrical engineering , biology
Electrochemical reduction of CO 2 is considered important in enhancing the circular‐economy design; it can suppress harmful greenhouse‐gas emissions while, combined with intermittent renewable energy sources, it can employ the surplus energy for production of important chemicals and fuels. In the process, electrocatalysts play an important role as the mediators of the highly active and selective conversion of CO 2 . Transition and post transition metals and their oxides are an important electrocatalyst group. For practical reasons, these metals need to be applied as nanoparticles supported on highly conducting materials enabling fabrication of 3D electrodes. In this minireview, we focus on gathering our current knowledge on the effects which transition and post transition metal and metal oxide nanoparticles supported on different carbons may have on electrochemical reduction of CO 2 . We focus on literature of studies conducted in aqueous conditions, under as similar conditions as possible, to ensure comparability. This approach enables us to highlight possible support effects and issues that complicate making conclusions on support effects.