Kinetics of N2O decomposition over bulk and supported LaCoO3 perovskites

IF 1.8 4区化学 Q3 CHEMISTRY, MULTIDISCIPLINARY

Mendeleev Communications Pub Date : 2024-09-01 DOI:10.1016/j.mencom.2024.09.009

Petr V. Zemlianskii , Alexander L. Kustov , Gennady I. Kapustin , Nikolay A. Davshan , Konstantin B. Kalmykov , Vladimir V. Chernyshev , Leonid M. Kustov

引用次数: 0

Abstract

For the first time, kinetic data on the decomposition of N₂O over mixed oxide LaCoO₃ with a perovskite structure have been obtained. Bulk LaCoO₃ synthesized using microwave activation exhibited an increased intrinsic reaction rate with a 30 kJ mol^–1 lower activation energy. Perovskite samples supported on ZrO₂-La demonstrated lower intrinsic reaction rates due to the lower content of the LaCoO₃ phase, but the activation energies were also lower by 50–80 kJ mol^–1.

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块状和支撑型 LaCoO3 包晶上的 N2O 分解动力学

该研究首次获得了在具有包晶结构的混合氧化物 LaCoO3 上分解 N2O 的动力学数据。使用微波活化法合成的块状 LaCoO3 表现出更高的本征反应速率，活化能降低了 30 kJ mol-1。由于 LaCoO3 相的含量较低，支撑在 ZrO2-La 上的包晶样品的固有反应速率较低，但活化能也降低了 50-80 kJ mol-1。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Mendeleev Communications 化学-化学综合

CiteScore

3.00

自引率

21.10%

发文量

226

审稿时长

4-8 weeks

期刊介绍： Mendeleev Communications is the journal of the Russian Academy of Sciences, launched jointly by the Academy of Sciences of the USSR and the Royal Society of Chemistry (United Kingdom) in 1991. Starting from 1st January 2007, Elsevier is the new publishing partner of Mendeleev Communications. Mendeleev Communications publishes short communications in chemistry. The journal primarily features papers from the Russian Federation and the other states of the former USSR. However, it also includes papers by authors from other parts of the world. Mendeleev Communications is not a translated journal, but instead is published directly in English. The International Editorial Board is composed of eminent scientists who provide advice on refereeing policy.