Synthesis of Sn4P3/reduced graphene oxide nanocomposites as highly efficient electrocatalysts for CO2 reduction

Lu Lu; Weiwei Guo; Chunjun Chen; Qinggong Zhu; Jun Ma; Haihong Wu; Dexin Yang; Guanying Yang; Xiaofu Sun; Buxing Han

doi:10.1039/D0GC02509G

Synthesis of Sn₄P₃/reduced graphene oxide nanocomposites as highly efficient electrocatalysts for CO₂ reduction†

Lu Lu,^abc Weiwei Guo,^ac Chunjun Chen,^ac Qinggong Zhu,^a Jun Ma,^a Haihong Wu,

^d Dexin Yang,^ac Guanying Yang,^a Xiaofu Sun

*^ac and Buxing Han

*^acd

Author affiliations

* Corresponding authors

^a Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
E-mail: sunxiaofu@iccas.ac.cn, hanbx@iccas.ac.cn

^b Paris Curie Engineer School, Beijing University of Chemical Technology, Beijing 100029, China

^c School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China

^d Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China

Abstract

Sn₄P₃/reduced graphene oxide nanocomposites exhibited high selectivity for CO over a wide potential range from −2.2 V to −2.5 V vs. Ag/Ag⁺. The maximum faradaic efficiency for CO can reach 96.6% with a high current density of 68.0 mA cm⁻². The high efficiency and selectivity can be attributed to the modified electronic structure of Sn sites, the small Sn₄P₃ nanoparticles and their dense packing in a conductive matrix, leading to a high density of active sites for adsorbing CO₂ and stabilizing the CO₂˙⁻ intermediate.

Green Chemistry

Synthesis of Sn₄P₃/reduced graphene oxide nanocomposites as highly efficient electrocatalysts for CO₂ reduction†

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Synthesis of Sn₄P₃/reduced graphene oxide nanocomposites as highly efficient electrocatalysts for CO₂ reduction

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