Active
Sites in Single-Atom Fe–Nx–C
Nanosheets for Selective Electrochemical Dechlorination of 1,2-Dichloroethane
to Ethylene
Posted on 2020-07-22 - 17:04
Electrochemical dechlorination of
1,2-dichloroethane
(DCE) is one of the prospective and economic strategies for the preparation
of high-value ethylene. However, the exploration of advanced electrocatalysts
with high reactivity and selectivity and the identification of their
active sites are still a challenge. Herein, a single-atom (SA) Fe–Nx–C nanosheet with the presence of
a highly efficient Fe–N4 coordination pattern is
reported. The as-prepared single-atom electrocatalyst exhibits a higher
reactivity and ethylene selectivity for DCE dechlorination reaction
than those of the commercially adopted 20% Pt–C catalyst. By
a combination of experiments and theoretical calculations, the atomically
dispersed Fe center in the Fe–N4 structure was unveiled
to be the dominating active site for electrochemical production of
ethylene. Our work would offer an approach for the rational development
of SA materials and supply crucial insight into the mechanism of ethylene
production through the DCE dechlorination reaction.
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Gan, Guoqiang; Li, Xinyong; Wang, Liang; Fan, Shiying; Mu, Jincheng; Wang, Penglei; et al. (2020). Active
Sites in Single-Atom Fe–Nx–C
Nanosheets for Selective Electrochemical Dechlorination of 1,2-Dichloroethane
to Ethylene. ACS Publications. Collection. https://doi.org/10.1021/acsnano.0c02783
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AUTHORS (7)
GG
Guoqiang Gan
XL
Xinyong Li
LW
Liang Wang
SF
Shiying Fan
JM
Jincheng Mu
PW
Penglei Wang
GC
Guohua Chen