Ultrasmall Cu Nanocrystals Dispersed in Nitrogen-Doped Carbon as Highly Efficient Catalysts for CO2Electroreduction

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

1 Scopus Citations
View graph of relations

Author(s)

  • Xiangfu Meng
  • Guoxing Pan
  • Hongji Liu
  • Yong Qian
  • Xingyu Wang
  • And 4 others
  • Changlai Wang
  • Lin Hu
  • Hui Wang
  • Qianwang Chen

Detail(s)

Original languageEnglish
Pages (from-to)17240-17248
Journal / PublicationACS Applied Materials and Interfaces
Volume14
Issue number15
Online published5 Apr 2022
Publication statusPublished - 20 Apr 2022

Abstract

The electroreduction of carbon dioxide (CO2) to a liquid product is a viable method for establishing an artificial carbon cycle. Unfortunately, most electrocatalysts' low efficiency and instability prevent them from being used in practical applications. In the current study, we developed ultrasmall Cu nanocrystals embedded in nitrogen-doped carbon nanosheets (Cu/NC-NSs) for selective CO2 electroreduction by adjusting the potential. Cu/NC-NSs had 43.7 and 63.5% Faradaic efficiencies for the synthesis of ethanol and formate with applied potentials of -0.37 and -0.77 V vs reversible hydrogen electrode (RHE) using a flow cell architecture, respectively. Moreover, these Cu/NC-NSs show a steady catalytic performance up to 16 h. Density functional theory (DFT) calculations were performed to investigate the reaction mechanism. Furthermore, the synergistic effect formed by nitrogen-doped carbon and highly dispersed copper atoms led to their excellent performance in CO2 electroreduction.

Research Area(s)

  • CO2electroreduction, Cu nanoparticles, liquid product, nitrogen-doped carbon, synergistic effect

Citation Format(s)

Ultrasmall Cu Nanocrystals Dispersed in Nitrogen-Doped Carbon as Highly Efficient Catalysts for CO2Electroreduction. / Meng, Xiangfu; Pan, Guoxing; Liu, Hongji et al.

In: ACS Applied Materials and Interfaces, Vol. 14, No. 15, 20.04.2022, p. 17240-17248.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review