Interface-engineered Co3O4 nano-islands on a Cu substrate for high-efficiency electrocatalytic nitrate-to-ammonia conversion

Tong Xu; Zhenxiao Wang; Hongyang Zhu; Ziwei Zhang; Yangping Zhang; Danhong Shang; Linzhi Zhai; Tongyi Yang; Mengnan Wang; Fu Yang

doi:10.1039/D5CC02057C

Interface-engineered Co₃O₄ nano-islands on a Cu substrate for high-efficiency electrocatalytic nitrate-to-ammonia conversion†

Tong Xu,‡^a Zhenxiao Wang,‡^a Hongyang Zhu,^a Ziwei Zhang,^a Yangping Zhang,

*^a Danhong Shang,^a Linzhi Zhai,^a Tongyi Yang,^a Mengnan Wang

*^b and Fu Yang

*^a

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* Corresponding authors

^a School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, Jiangsu, P. R. China
E-mail: ypzhang@just.edu.cn, fuyang@just.edu.cn

^b Department of Chemical Engineering, Swansea University, Swansea, UK
E-mail: mengnan.wang@swansea.ac.uk

Abstract

A core@shell C/Cu@Co₃O₄ catalyst with interfacial-engineered nano-islands on a Cu substrate was constructed, featuring accelerated electron-transfer properties and optimized nitrate trapping through the synergetic interfacial effect, achieving a remarkable NH₃ yield of 57.4 ± 2.9 mg h⁻¹ mg_cat⁻¹ and high Faraday efficiency of 98.4 ± 1.2%, surpassing most reported non-precious metal catalysts.

Chemical Communications

Interface-engineered Co₃O₄ nano-islands on a Cu substrate for high-efficiency electrocatalytic nitrate-to-ammonia conversion†

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Interface-engineered Co₃O₄ nano-islands on a Cu substrate for high-efficiency electrocatalytic nitrate-to-ammonia conversion

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