{"title":"大量Cu2O用于高效电合成尿素的表面工程","authors":"Zechuan Dai, Yanxu Chen, Huaikun Zhang, Mingyu Cheng, Bocheng Zhang, Pingyi Feng, Yafei Feng, Genqiang Zhang","doi":"10.1038/s41467-025-57708-7","DOIUrl":null,"url":null,"abstract":"<p>Electrochemical urea synthesis has recently emerged as a fascinating energy-efficient alternative route, while it remains challenging to achieve simultaneously high production rate and Faradaic efficiency. Herein, we realize an energy-favorable electrochemical C-N coupling path through CO<sub>2</sub> and NO<sub>3</sub><sup>−</sup> co-reduction at the heterointerfaces of Cu/Cu<sub>2</sub>O microparticles, generated by in-situ electrochemical engineering on bulk Cu<sub>2</sub>O. We achieve urea production rate of 632.1 μg h<sup>−1</sup>mg<sub>cat.</sub><sup>−1</sup> with a corresponding Faradaic efficiency of 42.3% at −0.3 V (versus RHE) under ambient conditions. Operando synchrotron radiation-Fourier transform infrared spectroscopy, along with theoretical calculations, reveals the coupling of intermediates NOH* and CO* at the heterointerfaces, benefiting from the modified electronic structure. This work provides a practical route for catalyst design and insights into urea electrosynthesis systems.</p>","PeriodicalId":19066,"journal":{"name":"Nature Communications","volume":"23 1","pages":""},"PeriodicalIF":15.7000,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Surface engineering on bulk Cu2O for efficient electrosynthesis of urea\",\"authors\":\"Zechuan Dai, Yanxu Chen, Huaikun Zhang, Mingyu Cheng, Bocheng Zhang, Pingyi Feng, Yafei Feng, Genqiang Zhang\",\"doi\":\"10.1038/s41467-025-57708-7\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Electrochemical urea synthesis has recently emerged as a fascinating energy-efficient alternative route, while it remains challenging to achieve simultaneously high production rate and Faradaic efficiency. Herein, we realize an energy-favorable electrochemical C-N coupling path through CO<sub>2</sub> and NO<sub>3</sub><sup>−</sup> co-reduction at the heterointerfaces of Cu/Cu<sub>2</sub>O microparticles, generated by in-situ electrochemical engineering on bulk Cu<sub>2</sub>O. We achieve urea production rate of 632.1 μg h<sup>−1</sup>mg<sub>cat.</sub><sup>−1</sup> with a corresponding Faradaic efficiency of 42.3% at −0.3 V (versus RHE) under ambient conditions. Operando synchrotron radiation-Fourier transform infrared spectroscopy, along with theoretical calculations, reveals the coupling of intermediates NOH* and CO* at the heterointerfaces, benefiting from the modified electronic structure. This work provides a practical route for catalyst design and insights into urea electrosynthesis systems.</p>\",\"PeriodicalId\":19066,\"journal\":{\"name\":\"Nature Communications\",\"volume\":\"23 1\",\"pages\":\"\"},\"PeriodicalIF\":15.7000,\"publicationDate\":\"2025-04-05\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Nature Communications\",\"FirstCategoryId\":\"103\",\"ListUrlMain\":\"https://doi.org/10.1038/s41467-025-57708-7\",\"RegionNum\":1,\"RegionCategory\":\"综合性期刊\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MULTIDISCIPLINARY SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nature Communications","FirstCategoryId":"103","ListUrlMain":"https://doi.org/10.1038/s41467-025-57708-7","RegionNum":1,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MULTIDISCIPLINARY SCIENCES","Score":null,"Total":0}
Surface engineering on bulk Cu2O for efficient electrosynthesis of urea
Electrochemical urea synthesis has recently emerged as a fascinating energy-efficient alternative route, while it remains challenging to achieve simultaneously high production rate and Faradaic efficiency. Herein, we realize an energy-favorable electrochemical C-N coupling path through CO2 and NO3− co-reduction at the heterointerfaces of Cu/Cu2O microparticles, generated by in-situ electrochemical engineering on bulk Cu2O. We achieve urea production rate of 632.1 μg h−1mgcat.−1 with a corresponding Faradaic efficiency of 42.3% at −0.3 V (versus RHE) under ambient conditions. Operando synchrotron radiation-Fourier transform infrared spectroscopy, along with theoretical calculations, reveals the coupling of intermediates NOH* and CO* at the heterointerfaces, benefiting from the modified electronic structure. This work provides a practical route for catalyst design and insights into urea electrosynthesis systems.
期刊介绍:
Nature Communications, an open-access journal, publishes high-quality research spanning all areas of the natural sciences. Papers featured in the journal showcase significant advances relevant to specialists in each respective field. With a 2-year impact factor of 16.6 (2022) and a median time of 8 days from submission to the first editorial decision, Nature Communications is committed to rapid dissemination of research findings. As a multidisciplinary journal, it welcomes contributions from biological, health, physical, chemical, Earth, social, mathematical, applied, and engineering sciences, aiming to highlight important breakthroughs within each domain.