High Activity and Selectivity CeO2 Nanorod Catalysts for Azoxybenzene Synthesis from Transfer Hydrogenation of Nitrobenzene

IF 2.3 4区化学 Q3 CHEMISTRY, PHYSICAL

Catalysis Letters Pub Date : 2025-02-12 DOI:10.1007/s10562-025-04947-4

Yuanlin Chen, Lingli Wang, Bing Liu

引用次数: 0

Abstract

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.

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来源期刊

Catalysis Letters 化学-物理化学

CiteScore

5.70

自引率

3.60%

发文量

327

审稿时长

1 months

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.