Surface engineered tin foil for electrocatalytic reduction of carbon dioxide to formate

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Original languageEnglish
Pages (from-to)2542-2550
Journal / PublicationCatalysis Science and Technology
Issue number12
Online published9 May 2017
Publication statusPublished - 21 Jun 2017
Externally publishedYes


A cost-effective and stable electrode for electrocatalytic CO2 reduction reactions (CO2RR) was obtained by anodizing commercially available tin (Sn) foil in organic solvents. The surface engineered Sn foil can be used directly as the electrode for CO2RR, which can reduce CO2 to formate. In CO2 saturated KHCO3 solution, the maximum formate Faradaic efficiency of the obtained electrode is 77.40% with a stable current density of 4.80 mA cm-2 at an applied potential of -1.09 V (vs. RHE). The heightened catalytic performances can be attributed to the formation of a thin layered SnOx/Sn interface during anodization, which plays an important role in stabilizing the reaction intermediates in CO2RR.