{"title":"硝基苯转移加氢合成偶氮氧苯的高活性和选择性CeO2纳米棒催化剂","authors":"Yuanlin Chen, Lingli Wang, Bing Liu","doi":"10.1007/s10562-025-04947-4","DOIUrl":null,"url":null,"abstract":"<div><p>Azoxybenzene is an essential substance for the chemical industry. The catalytic reduction of nitroarenes from hydrogenation transfer is a mild, green and environment-friendly reaction process. Here, we synthesize nanorod CeO<sub>2</sub> catalysts, which present a stable 28% nitrobenzene conversion and 90% azoxybenzene selectivity without additives during the 22 h reaction time at 140 <sup>o</sup>C and 5wt.% Nitrobenzene/ethanol fluid solution in a fixed bed reactor. In contract, nanoparticle CeO<sub>2</sub> only present about 2% nitrobenzene conversion at the same condition. Oxygen vacancies generated in CeO<sub>2</sub> (110) are critical for the adsorption and activation of nitrobenzene and ethanol, lead to a lower reaction energy barrier of r-CeO<sub>2</sub>.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":"155 3","pages":""},"PeriodicalIF":2.3000,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"High Activity and Selectivity CeO2 Nanorod Catalysts for Azoxybenzene Synthesis from Transfer Hydrogenation of Nitrobenzene\",\"authors\":\"Yuanlin Chen, Lingli Wang, Bing Liu\",\"doi\":\"10.1007/s10562-025-04947-4\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Azoxybenzene is an essential substance for the chemical industry. The catalytic reduction of nitroarenes from hydrogenation transfer is a mild, green and environment-friendly reaction process. Here, we synthesize nanorod CeO<sub>2</sub> catalysts, which present a stable 28% nitrobenzene conversion and 90% azoxybenzene selectivity without additives during the 22 h reaction time at 140 <sup>o</sup>C and 5wt.% Nitrobenzene/ethanol fluid solution in a fixed bed reactor. In contract, nanoparticle CeO<sub>2</sub> only present about 2% nitrobenzene conversion at the same condition. Oxygen vacancies generated in CeO<sub>2</sub> (110) are critical for the adsorption and activation of nitrobenzene and ethanol, lead to a lower reaction energy barrier of r-CeO<sub>2</sub>.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>\",\"PeriodicalId\":508,\"journal\":{\"name\":\"Catalysis Letters\",\"volume\":\"155 3\",\"pages\":\"\"},\"PeriodicalIF\":2.3000,\"publicationDate\":\"2025-02-12\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Catalysis Letters\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s10562-025-04947-4\",\"RegionNum\":4,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Catalysis Letters","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s10562-025-04947-4","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
High Activity and Selectivity CeO2 Nanorod Catalysts for Azoxybenzene Synthesis from Transfer Hydrogenation of Nitrobenzene
Azoxybenzene is an essential substance for the chemical industry. The catalytic reduction of nitroarenes from hydrogenation transfer is a mild, green and environment-friendly reaction process. Here, we synthesize nanorod CeO2 catalysts, which present a stable 28% nitrobenzene conversion and 90% azoxybenzene selectivity without additives during the 22 h reaction time at 140 oC and 5wt.% Nitrobenzene/ethanol fluid solution in a fixed bed reactor. In contract, nanoparticle CeO2 only present about 2% nitrobenzene conversion at the same condition. Oxygen vacancies generated in CeO2 (110) are critical for the adsorption and activation of nitrobenzene and ethanol, lead to a lower reaction energy barrier of r-CeO2.
期刊介绍：
Catalysis Letters aim is the rapid publication of outstanding and high-impact original research articles in catalysis. The scope of the journal covers a broad range of topics in all fields of both applied and theoretical catalysis, including heterogeneous, homogeneous and biocatalysis.
The high-quality original research articles published in Catalysis Letters are subject to rigorous peer review. Accepted papers are published online first and subsequently in print issues. All contributions must include a graphical abstract. Manuscripts should be written in English and the responsibility lies with the authors to ensure that they are grammatically and linguistically correct. Authors for whom English is not the working language are encouraged to consider using a professional language-editing service before submitting their manuscripts.
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