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Issue 4, 2019
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Zn nanosheets coated with a ZnS subnanometer layer for effective and durable CO2 reduction

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Abstract

Electrochemical reduction of CO2 into value-added chemicals provides a facile solution to energy and environmental crisis. Non-precious metals (Zn, Cd, Sn etc.) were identified as promising catalysts for the reduction of CO2. However, their electron-rich peculiarity causes weak adsorption of reaction intermediates and poor performance for CO2 reduction. Here we report that a conceptually new electrocatalyst, Zn nanosheets coated with a porous ZnS subnanometer layer, can achieve excellent catalytic performance which is comparable with that of noble metallic catalysts. Experimental and theoretical investigations reveal that the ZnS subnanometer layer plays a similar role to S dopants, modifies the adsorption of Zn catalysts appropriately, and eventually achieves high catalytic activity. Meanwhile, different from S doping, the ZnS subnanometer layer is chemically inert during the reduction of CO2, thus providing long-term durability.

Graphical abstract: Zn nanosheets coated with a ZnS subnanometer layer for effective and durable CO2 reduction

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Publication details

The article was received on 09 Nov 2018, accepted on 06 Dec 2018 and first published on 06 Dec 2018


Article type: Communication
DOI: 10.1039/C8TA10799H
Citation: J. Mater. Chem. A, 2019,7, 1418-1423

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    Zn nanosheets coated with a ZnS subnanometer layer for effective and durable CO2 reduction

    C. Li, G. Shen, R. Zhang, D. Wu, C. Zou, T. Ling, H. Liu, C. Dong and X. Du, J. Mater. Chem. A, 2019, 7, 1418
    DOI: 10.1039/C8TA10799H

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