Location, stability, and reactivity of oxygen species generated by N2O decomposition over Fe-ZSM-5 and Fe-Beta zeolites

被引：10

作者：

Sobolev, Vladimir I. ^{[1
]}

Koltunov, Konstantin Yu ^{[1
,2
]}

机构：

[1] Boreskov Inst Catalysis, Novosibirsk 630090, Russia

[2] Novosibirsk State Univ, Novosibirsk 630090, Russia

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2011年 / 347卷 / 1-2期

关键词：

N2O decomposition; Oxygen species; Isotope exchange; Fe-ZSM-5; Fe-Beta; NITROUS-OXIDE DECOMPOSITION; HIGH-TEMPERATURE TREATMENT; CHEMICAL-VAPOR-DEPOSITION; SELECTIVE OXIDATION; ISOTOPIC EXCHANGE; SURFACE OXYGEN; ACTIVE-SITES; PHYSICOCHEMICAL CHARACTERIZATION; MOSSBAUER-SPECTROSCOPY; BENZENE HYDROXYLATION;

D O I：

10.1016/j.molcata.2011.07.004

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Reactivity of oxygen species generated by N2O decomposition over Fe-ZSM-5 and Fe-Beta zeolites was investigated using oxygen isotopic exchange as test reaction. The generated species are very stable up to 300 degrees C in the absence of the organic traces or residual N2O in the gas phase. The reactivity of the oxygen species towards organics depends on the size of the organic molecules and their ability to penetrate into the zeolite pores. For example, in case of Fe-ZSM-5 zeolite, the oxygen species react readily with toluene, but stay intact with more bulky 1,3,5-trimethylbenzene. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：22 / 27

页数：6

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