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Nickel Nanoparticles with Narrow Size Distribution Confined in Nitrogen-Doped Carbon for Efficient Reduction of CO2 to CO.
- Source :
-
Catalysis Letters . Feb2022, Vol. 152 Issue 2, p600-609. 10p. - Publication Year :
- 2022
-
Abstract
- Facilely tailored electrocatalyst with high-efficiency and durability for carbon dioxide (CO2) to carbon monoxide (CO) conversion is appealing but remains challenging. Herein, small nickel nanoparticles (about 19.4 nm) confined in nitrogen-doped carbon (Ni NPs@N–C) with narrow size distribution are successfully constructed via a facile one-step calcination strategy of Ni containing MOF compounds. By virtue of the protective N-doped graphitized carbon shell and the uniformly distributed fine Ni nanoparticles in a narrow range from 13 to 21 nm, the as-obtained Ni NPs@N–C can exclusively convert CO2 into CO with excellent Faradaic efficiency (FE) of 96.8% at − 1.0 V (vs. RHE), as well as the superior long-term catalytic stability over 24 h. Moreover, a high current density of more than 200 mA cm−2 with a stable CO FE of 92% can be achieved in a flow cell configuration. This work paves a new way for the facile and potentially scale preparation of small metal nanoparticles for efficient CO2- to-CO conversion. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 1011372X
- Volume :
- 152
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- Catalysis Letters
- Publication Type :
- Academic Journal
- Accession number :
- 154980971
- Full Text :
- https://doi.org/10.1007/s10562-021-03662-0