Unexpected high selectivity for acetate formation from CO2reduction with copper based 2D hybrid catalysts at ultralow potentials

Rongming Cai, Mingzi Sun, Jiazheng Ren, Min Ju, Xia Long, Bolong Huang, Shihe Yang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

4 Citations (Scopus)

Abstract

Copper-based catalysts are efficient for CO2 reduction affording commodity chemicals. However, Cu(i) active species are easily reduced to Cu(0) during the CO2RR, leading to a rapid decay of catalytic performance. Herein, we report a hybrid-catalyst that firmly anchors 2D-Cu metallic dots on F-doped CuxO nanoplates (CuxOF), synthesized by electrochemical-transformation under the same conditions as the targeted CO2RR. The as-prepared Cu/CuxOF hybrid showed unusual catalytic activity towards the CO2RR for CH3COO- generation, with a high FE of 27% at extremely low potentials. The combined experimental and theoretical results show that nanoscale hybridization engenders an effective s,p-d coupling in Cu/CuxOF, raising the d-band center of Cu and thus enhancing electroactivity and selectivity for the acetate formation. This work highlights the use of electronic interactions to bias a hybrid catalyst towards a particular pathway, which is critical for tuning the activity and selectivity of copper-based catalysts for the CO2RR.

Original languageEnglish
Pages (from-to)15382-15388
Number of pages7
JournalChemical Science
Volume12
Issue number46
DOIs
Publication statusPublished - 14 Dec 2021

ASJC Scopus subject areas

  • Chemistry(all)

Fingerprint

Dive into the research topics of 'Unexpected high selectivity for acetate formation from CO2reduction with copper based 2D hybrid catalysts at ultralow potentials'. Together they form a unique fingerprint.

Cite this