Tuning Sn-Catalysis for Electrochemical Reduction of CO2 to CO via the Core/Shell Cu/SnO2 Structure

Qing Li; Jiaju Fu; Wenlei Zhu; Zhengzheng Chen; Bo Shen; Liheng Wu; Zheng Xi; Tanyuan Wang; Gang Lu; Jun-Jie Zhu; Shouheng Sun

doi:10.1021/jacs.7b00261

Tuning Sn-Catalysis for Electrochemical Reduction of CO₂ to CO via the Core/Shell Cu/SnO₂ Structure

Qing Li
, Jiaju Fu
, Wenlei Zhu
, Zhengzheng Chen
, Bo Shen
, Liheng Wu
, Zheng Xi
, Tanyuan Wang
, Gang Lu
, Jun-Jie Zhu
, Shouheng Sun

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

647 Citations (Scopus)

Abstract

Tin (Sn) is known to be a good catalyst for electrochemical reduction of CO₂ to formate in 0.5 M KHCO₃. But when a thin layer of SnO₂ is coated over Cu nanoparticles, the reduction becomes Sn-thickness dependent: the thicker (1.8 nm) shell shows Sn-like activity to generate formate whereas the thinner (0.8 nm) shell is selective to the formation of CO with the conversion Faradaic efficiency (FE) reaching 93% at 0.7 V (vs reversible hydrogen electrode (RHE)). Theoretical calculations suggest that the 0.8 nm SnO₂ shell likely alloys with trace of Cu, causing the SnO₂ lattice to be uniaxially compressed and favors the production of CO over formate. The report demonstrates a new strategy to tune NP catalyst selectivity for the electrochemical reduction of CO₂ via the tunable core/shell structure. © 2017 American Chemical Society.

Original language	English
Pages (from-to)	4290-4293
Journal	Journal of the American Chemical Society
Volume	139
Issue number	12
DOIs	https://doi.org/10.1021/jacs.7b00261
Publication status	Published - 29 Mar 2017
Externally published	Yes

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Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

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SDG 13 Climate Action

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Cite this

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title = "Tuning Sn-Catalysis for Electrochemical Reduction of CO2 to CO via the Core/Shell Cu/SnO2 Structure",

abstract = "Tin (Sn) is known to be a good catalyst for electrochemical reduction of CO2 to formate in 0.5 M KHCO3. But when a thin layer of SnO2 is coated over Cu nanoparticles, the reduction becomes Sn-thickness dependent: the thicker (1.8 nm) shell shows Sn-like activity to generate formate whereas the thinner (0.8 nm) shell is selective to the formation of CO with the conversion Faradaic efficiency (FE) reaching 93\% at 0.7 V (vs reversible hydrogen electrode (RHE)). Theoretical calculations suggest that the 0.8 nm SnO2 shell likely alloys with trace of Cu, causing the SnO2 lattice to be uniaxially compressed and favors the production of CO over formate. The report demonstrates a new strategy to tune NP catalyst selectivity for the electrochemical reduction of CO2 via the tunable core/shell structure. {\textcopyright} 2017 American Chemical Society.",

author = "Qing Li and Jiaju Fu and Wenlei Zhu and Zhengzheng Chen and Bo Shen and Liheng Wu and Zheng Xi and Tanyuan Wang and Gang Lu and Jun-Jie Zhu and Shouheng Sun",

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TY - JOUR

T1 - Tuning Sn-Catalysis for Electrochemical Reduction of CO2 to CO via the Core/Shell Cu/SnO2 Structure

AU - Li, Qing

AU - Fu, Jiaju

AU - Zhu, Wenlei

AU - Chen, Zhengzheng

AU - Shen, Bo

AU - Wu, Liheng

AU - Xi, Zheng

AU - Wang, Tanyuan

AU - Lu, Gang

AU - Zhu, Jun-Jie

AU - Sun, Shouheng

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2017/3/29

Y1 - 2017/3/29

N2 - Tin (Sn) is known to be a good catalyst for electrochemical reduction of CO2 to formate in 0.5 M KHCO3. But when a thin layer of SnO2 is coated over Cu nanoparticles, the reduction becomes Sn-thickness dependent: the thicker (1.8 nm) shell shows Sn-like activity to generate formate whereas the thinner (0.8 nm) shell is selective to the formation of CO with the conversion Faradaic efficiency (FE) reaching 93% at 0.7 V (vs reversible hydrogen electrode (RHE)). Theoretical calculations suggest that the 0.8 nm SnO2 shell likely alloys with trace of Cu, causing the SnO2 lattice to be uniaxially compressed and favors the production of CO over formate. The report demonstrates a new strategy to tune NP catalyst selectivity for the electrochemical reduction of CO2 via the tunable core/shell structure. © 2017 American Chemical Society.

AB - Tin (Sn) is known to be a good catalyst for electrochemical reduction of CO2 to formate in 0.5 M KHCO3. But when a thin layer of SnO2 is coated over Cu nanoparticles, the reduction becomes Sn-thickness dependent: the thicker (1.8 nm) shell shows Sn-like activity to generate formate whereas the thinner (0.8 nm) shell is selective to the formation of CO with the conversion Faradaic efficiency (FE) reaching 93% at 0.7 V (vs reversible hydrogen electrode (RHE)). Theoretical calculations suggest that the 0.8 nm SnO2 shell likely alloys with trace of Cu, causing the SnO2 lattice to be uniaxially compressed and favors the production of CO over formate. The report demonstrates a new strategy to tune NP catalyst selectivity for the electrochemical reduction of CO2 via the tunable core/shell structure. © 2017 American Chemical Society.

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U2 - 10.1021/jacs.7b00261

DO - 10.1021/jacs.7b00261

M3 - RGC 21 - Publication in refereed journal

C2 - 28291338

SN - 0002-7863

VL - 139

SP - 4290

EP - 4293

JO - Journal of the American Chemical Society

JF - Journal of the American Chemical Society

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