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Activity of Oxygen on HZSM-5 Type Zeolite in Oxidation of Benzene and Its Derivatives
Russian Journal of Physical Chemistry A ( IF 0.7 ) Pub Date : 2021-09-12 , DOI: 10.1134/s0036024421090119
L. M. Kustov 1, 2 , A. L. Tarasov 1 , A. L. Kustov 1, 2
Affiliation  

Abstract

The oxidation of benzene, fluorobenzene, chlorobenzene, and phenol in the presence of O2 and N2O on HZSM-5 type zeolite with Si/Al = 24 was studied by EPR spectroscopy. It was shown that the thermal decomposition of nitrous oxide on zeolite forms molecular and chemisorbed atomic oxygen. It was found that the catalytic oxidation of benzene, fluorobenzene, chlorobenzene, and phenol under the action of О2 and N2O proceeds at Lewis acid sites and leads to the formation of phenoxyl radical cations with characteristic g factors and hyperfine structure of the EPR spectrum.



中文翻译:

HZSM-5型沸石氧化苯及其衍生物时氧的活性

摘要

苯、氟苯、氯苯和苯酚在O 2和N 2 O存在下在Si/Al = 24 的HZSM-5 型沸石上的氧化研究了EPR 光谱。结果表明,一氧化二氮在沸石上的热分解形成分子和化学吸附的原子氧。发现苯、氟苯、氯苯和苯酚在 О 2和 N 2 O作用下的催化氧化在路易斯酸位点进行,并导致形成具有特征g因子和 EPR 超精细结构的苯氧基自由基阳离子光谱。

更新日期:2021-09-12
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