Oxidation‐etching induced morphology regulation of Cu catalysts for high‐performance electrochemical N2 reduction
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 sta...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2020-06-01
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| Series: | EcoMat |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/eom2.12026 |
| _version_ | 1818518952400125952 |
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| author | Xuqiang Ji Ting Wang Qian Liu Yongsong Luo Siyu Lu Guang Chen Shuyan Gao Abdullah M. Asiri Xuping Sun |
| author_facet | Xuqiang Ji Ting Wang Qian Liu Yongsong Luo Siyu Lu Guang Chen Shuyan Gao Abdullah M. Asiri Xuping Sun |
| author_sort | Xuqiang Ji |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-12-11T01:17:17Z |
| format | Article |
| id | doaj.art-00236c01ab1c446badf0e8bb0ba3692c |
| institution | Directory Open Access Journal |
| issn | 2567-3173 |
| language | English |
| last_indexed | 2024-12-11T01:17:17Z |
| publishDate | 2020-06-01 |
| publisher | Wiley |
| record_format | Article |
| series | EcoMat |
| spelling | doaj.art-00236c01ab1c446badf0e8bb0ba3692c2022-12-22T01:25:50ZengWileyEcoMat2567-31732020-06-0122n/an/a10.1002/eom2.12026Oxidation‐etching induced morphology regulation of Cu catalysts for high‐performance electrochemical N2 reductionXuqiang Ji0Ting Wang1Qian Liu2Yongsong Luo3Siyu Lu4Guang Chen5Shuyan Gao6Abdullah M. Asiri7Xuping Sun8Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of China Chengdu ChinaInstitute of Fundamental and Frontier Sciences University of Electronic Science and Technology of China Chengdu ChinaInstitute of Fundamental and Frontier Sciences University of Electronic Science and Technology of China Chengdu ChinaInstitute of Fundamental and Frontier Sciences University of Electronic Science and Technology of China Chengdu ChinaGreen Catalysis Center and College of Chemistry Zhengzhou University Zhengzhou ChinaThe Key Laboratory of Life‐Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, School of Chemistry and Chemical Engineering Qufu Normal University Qufu ChinaSchool of Materials Science and Engineering Henan Normal University Xinxiang ChinaChemistry Department, Faculty of Science & Center of Excellence for Advanced Materials Research King Abdulaziz University Jeddah Saudi ArabiaInstitute of Fundamental and Frontier Sciences University of Electronic Science and Technology of China Chengdu ChinaAbstract 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.https://doi.org/10.1002/eom2.12026ambient conditioncu carvingN2 reduction reactionNH3 synthesisoxidation‐etching |
| spellingShingle | Xuqiang Ji Ting Wang Qian Liu Yongsong Luo Siyu Lu Guang Chen Shuyan Gao Abdullah M. Asiri Xuping Sun Oxidation‐etching induced morphology regulation of Cu catalysts for high‐performance electrochemical N2 reduction EcoMat ambient condition cu carving N2 reduction reaction NH3 synthesis oxidation‐etching |
| title | Oxidation‐etching induced morphology regulation of Cu catalysts for high‐performance electrochemical N2 reduction |
| title_full | Oxidation‐etching induced morphology regulation of Cu catalysts for high‐performance electrochemical N2 reduction |
| title_fullStr | Oxidation‐etching induced morphology regulation of Cu catalysts for high‐performance electrochemical N2 reduction |
| title_full_unstemmed | Oxidation‐etching induced morphology regulation of Cu catalysts for high‐performance electrochemical N2 reduction |
| title_short | Oxidation‐etching induced morphology regulation of Cu catalysts for high‐performance electrochemical N2 reduction |
| title_sort | oxidation etching induced morphology regulation of cu catalysts for high performance electrochemical n2 reduction |
| topic | ambient condition cu carving N2 reduction reaction NH3 synthesis oxidation‐etching |
| url | https://doi.org/10.1002/eom2.12026 |
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