Oxidation‐etching induced morphology regulation of Cu catalysts for high‐performance electrochemical N2 reduction

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ID: 113476
2020
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Abstract
Abstract Renewable‐electricity‐driven N2 reduction is an attractive approach for ambient NH3 synthesis, but active electrocatalysts are needed to enable the N2 reduction reaction. Monolithic electrodes with active components anchored on conductive supports provide many advantages like structural stability, large surface area, and low electrical resistance. Here, a novel “oxidation‐etching” strategy is proposed to carve the surface of Cu foam into structures of particles, cubes, and sheets for N2 reduction electrocatalysis. The optimal catalyst achieves a Faradic efficiency as high as 18% at −0.35 V vs reversible hydrogen electrode (RHE) and a large NH3 yield of 2.45 × 10−10 mol s−1 cm−1 at −0.40 V vs RHE in 0.1 M HCl. Notably, it also shows superior long‐term electrochemical durability, with the preservation of electro‐activity for at least 20 hours.
Reference Key
ji2020oxidationetchingecomat Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Ji, Xuqiang;Wang, Ting;Liu, Qian;Luo, Yongsong;Lu, Siyu;Chen, Guang;Gao, Shuyan;Asiri, Abdullah M.;Sun, Xuping;
Journal ecomat
Year 2020
DOI
DOI not found
URL
https://doi.org/10.1002/eom2.12026
Keywords
Education Pharmacy and materia medica Materials of engineering and construction. Mechanics of materials Information technology Technology renewable energy sources environmental sciences general works nutritional diseases. deficiency diseases public aspects of medicine electronic computers. computer science

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