The Library
Integration of ultrafine CuO nanoparticles with two-dimensional MOFs for enhanced electrochemicgal CO2 reduction to ethylene
Tools
Wang, Linlin, Li, Xin, Hao, Leiduan, Hong, Song, Robertson, Alex W. and Sun, Zhenyu (2022) Integration of ultrafine CuO nanoparticles with two-dimensional MOFs for enhanced electrochemicgal CO2 reduction to ethylene. Chinese Journal of Catalysis, 43 (4). pp. 1049-1057. doi:10.1016/S1872-2067(21)63947-5 ISSN 1872-2067.
Research output not available from this repository.
Request-a-Copy directly from author or use local Library Get it For Me service.
Official URL: http://dx.doi.org/10.1016/S1872-2067(21)63947-5
Abstract
To facilitate the electrochemical CO2 reduction (ECR) to fuels and valuable chemicals, the development of active, low cost, and selective catalysts is crucial. We report a novel ECR catalyst consisting of CuO nanoparticles with sizes ranging from 1.4 to 3.3 nm anchored on Cu metal-organic framework (Cu-MOF) nanosheets obtained through a one-step facile solvothermal method. The nanocomposites provide multiple sites for efficient ambient ECR, delivering an average C2H4 faradaic efficiency (FE) of ~50.0% at –1.1 V (referred to the reversible hydrogen electrode) in 0.1 mol/L aqueous KHCO3 using a two-compartment cell, in stark contrast to a C2H4 FE of 25.5% and 37.6% over individual CuO and Cu-MOF respectively, also surpassing most newly reported Cu-based materials under similar cathodic voltages. The C2H4 FE remains at over 45.0% even after 10.0 h of successive polarization. Also, a ~7.0 mA cm−2 C2H4 partial geometric current density and 27.7% half-cell C2H4 power conversion efficiency are achieved. The good electrocatalytic performance can be attributed to the interface between CuO and Cu-MOF, with accessible metallic moieties and the unique two-dimensional structure of the Cu-MOF enhancing the adsorption and activation of CO2 molecules. This finding offers a simple avenue to upgrading CO2 to value-added hydrocarbons by rational design of MOF-based composites.
Item Type: | Journal Article | ||||||||
---|---|---|---|---|---|---|---|---|---|
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||||
Journal or Publication Title: | Chinese Journal of Catalysis | ||||||||
Publisher: | Elsevier | ||||||||
ISSN: | 1872-2067 | ||||||||
Official Date: | April 2022 | ||||||||
Dates: |
|
||||||||
Volume: | 43 | ||||||||
Number: | 4 | ||||||||
Page Range: | pp. 1049-1057 | ||||||||
DOI: | 10.1016/S1872-2067(21)63947-5 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Restricted or Subscription Access |
Request changes or add full text files to a record
Repository staff actions (login required)
View Item |