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Issue 41, 2018
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Sub-5 nm SnO2 chemically coupled hollow carbon spheres for efficient electrocatalytic CO2 reduction

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Abstract

The electrochemical CO2 reduction reaction (CO2RR) represents a sustainable approach to convert the continuously accumulating CO2 emission into fuels or value-added chemicals. Tin and its compounds are recognized as formate selective CO2RR catalysts, while their catalytic activities and stabilities significantly depend on the micro/nanostructures and the corresponding electronic structures of the catalysts. Herein, we developed a sub-5 nm SnO2 nanoparticle-decorated hollow carbon spherical structure (SnO2/C) as an efficient CO2RR electrocatalyst. Compared to the plain SnOx nanoparticle-aggregated hollow spheres and hollow carbon spheres, SnO2/C achieved a much enhanced CO2RR catalytic performance, including better faradaic efficiencies (FE) and enhanced electrochemical stability. The much improved CO2RR activity and stability of SnO2/C were attributed to the Sn–O–C linkages between SnO2 and the carbon sphere, which led to the increased CO2 chemisorption, fast electron transfer, and the increased number of catalytically active sites.

Graphical abstract: Sub-5 nm SnO2 chemically coupled hollow carbon spheres for efficient electrocatalytic CO2 reduction

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Publication details

The article was received on 19 Aug 2018, accepted on 24 Sep 2018 and first published on 24 Sep 2018


Article type: Paper
DOI: 10.1039/C8TA08058E
Citation: J. Mater. Chem. A, 2018,6, 20121-20127

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    Sub-5 nm SnO2 chemically coupled hollow carbon spheres for efficient electrocatalytic CO2 reduction

    Yiliguma, Z. Wang, C. Yang, A. Guan, L. Shang, A. M. Al-Enizi, L. Zhang and G. Zheng, J. Mater. Chem. A, 2018, 6, 20121
    DOI: 10.1039/C8TA08058E

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