Strategies to Modulate the Copper Oxidation State Toward Selective C2+ Production in the Electrochemical CO2 Reduction Reaction

Minki Jun, Joyjit Kundu, Duck Hyun Kim, Minah Kim, Dongyong Kim, Kwangyeol Lee, Sang Il Choi

Research output: Contribution to journalReview articlepeer-review

20 Scopus citations

Abstract

The electrochemical reduction of CO2 to form value-added chemicals receives considerable attention in recent years. Copper (Cu) is recognized as the only element capable of electro-reducing CO2 into hydrocarbons with two or more carbon atoms (C2+), but the low product selectivity of the Cu-based catalyst remains a major technological challenge to overcome. Therefore, identification of the structural features of Cu-based catalysts is of great importance for the highly selective production of C2+ products (ethylene, ethanol, n-propanol, etc.), and the oxidation state of Cu species in the catalysts is found critical to the catalyst performance. This review introduces recent efforts to fine-tune the oxidation state of Cu to increase carbon capture and produce specific C2+ compounds, with the intention of greatly expediting the advance in the catalyst designs. It also points to the remaining challenges and fruitful research directions for the development of Cu-based catalysts that can shape the practical CO2 reduction technology.

Original languageEnglish
Article number2313028
JournalAdvanced Materials
Volume36
Issue number21
DOIs
StatePublished - 23 May 2024

Keywords

  • CO reduction
  • copper
  • electrocatalysts
  • oxidation state, selectivity

Fingerprint

Dive into the research topics of 'Strategies to Modulate the Copper Oxidation State Toward Selective C2+ Production in the Electrochemical CO2 Reduction Reaction'. Together they form a unique fingerprint.

Cite this