SnSe2 Nanorods on Carbon Cloth as a Highly Selective, Active, and Flexible Electrocatalyst for Electrochemical Reduction of CO2 into Formate

Beibei He, Lichao Jia, Yuexiao Cui, Wei Zhou, Jian Sun, Jianmei Xu, Qing Wang, Ling Zhao

Research output: Contribution to journalArticle

Abstract

Electrochemical reduction reaction of CO2 (CO2RR) into value-added products, such as formate, is a fascinating strategy for a carbon-neutral cycle. However, the pursuit of highly selective, energetic efficient, and robust electrocatalysts is a prerequisite for its implementation. Herein, SnSe2 nanorods supported on carbon cloth (CC) is proposed to selectively and efficiently electrochemical reduce CO2 into formate. The integrated SnSe2@CC electrocatalyst is prepared by a combination of hydrothermal reaction and selenylation. Notably, this electrocatalyst is capable of generating formate with a considerable current density of 12.0 mA cm-2 and a high formate faradaic efficiency of 88.4% at a low potential of -0.76 V (vs RHE), which rivals most of Sn-based electrocatalysts toward formate formation. Density functional theory calculations reveal that the reaction pathway involving *OCOH intermediate is energetically feasible. Moreover, the SnSe2@CC electrocatalyst also demonstrates a good durability and flexibility. This experimental and theoretical study may provide a perspective on a promising class of high performance and flexible electrocatalysts for CO2RR.

Original languageEnglish (US)
Pages (from-to)7655-7662
Number of pages8
JournalACS Applied Energy Materials
Volume2
Issue number10
DOIs
StatePublished - Oct 28 2019

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formic acid
Electrocatalysts
Nanorods
Carbon
Density functional theory
Durability
Current density

All Science Journal Classification (ASJC) codes

  • Chemical Engineering (miscellaneous)
  • Energy Engineering and Power Technology
  • Electrochemistry
  • Materials Chemistry
  • Electrical and Electronic Engineering

Cite this

He, Beibei ; Jia, Lichao ; Cui, Yuexiao ; Zhou, Wei ; Sun, Jian ; Xu, Jianmei ; Wang, Qing ; Zhao, Ling. / SnSe2 Nanorods on Carbon Cloth as a Highly Selective, Active, and Flexible Electrocatalyst for Electrochemical Reduction of CO2 into Formate. In: ACS Applied Energy Materials. 2019 ; Vol. 2, No. 10. pp. 7655-7662.
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abstract = "Electrochemical reduction reaction of CO2 (CO2RR) into value-added products, such as formate, is a fascinating strategy for a carbon-neutral cycle. However, the pursuit of highly selective, energetic efficient, and robust electrocatalysts is a prerequisite for its implementation. Herein, SnSe2 nanorods supported on carbon cloth (CC) is proposed to selectively and efficiently electrochemical reduce CO2 into formate. The integrated SnSe2@CC electrocatalyst is prepared by a combination of hydrothermal reaction and selenylation. Notably, this electrocatalyst is capable of generating formate with a considerable current density of 12.0 mA cm-2 and a high formate faradaic efficiency of 88.4{\%} at a low potential of -0.76 V (vs RHE), which rivals most of Sn-based electrocatalysts toward formate formation. Density functional theory calculations reveal that the reaction pathway involving *OCOH intermediate is energetically feasible. Moreover, the SnSe2@CC electrocatalyst also demonstrates a good durability and flexibility. This experimental and theoretical study may provide a perspective on a promising class of high performance and flexible electrocatalysts for CO2RR.",
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SnSe2 Nanorods on Carbon Cloth as a Highly Selective, Active, and Flexible Electrocatalyst for Electrochemical Reduction of CO2 into Formate. / He, Beibei; Jia, Lichao; Cui, Yuexiao; Zhou, Wei; Sun, Jian; Xu, Jianmei; Wang, Qing; Zhao, Ling.

In: ACS Applied Energy Materials, Vol. 2, No. 10, 28.10.2019, p. 7655-7662.

Research output: Contribution to journalArticle

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AU - Jia, Lichao

AU - Cui, Yuexiao

AU - Zhou, Wei

AU - Sun, Jian

AU - Xu, Jianmei

AU - Wang, Qing

AU - Zhao, Ling

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