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A new type of power energy for accelerating chemical reactions: the nature of a microwave-driving force for accelerating chemical reactions

The use of microwave (MW) irradiation to increase the rate of chemical reactions has attracted much attention recently in nearly all fields of chemistry due to substantial enhancements in reaction rates. However, the intrinsic nature of the effects of MW irradiation on chemical reactions remains unc...

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Autores principales: Zhou, Jicheng, Xu, Wentao, You, Zhimin, Wang, Zhe, Luo, Yushang, Gao, Lingfei, Yin, Cheng, Peng, Renjie, Lan, Lixin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4846869/
https://www.ncbi.nlm.nih.gov/pubmed/27118640
http://dx.doi.org/10.1038/srep25149
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author Zhou, Jicheng
Xu, Wentao
You, Zhimin
Wang, Zhe
Luo, Yushang
Gao, Lingfei
Yin, Cheng
Peng, Renjie
Lan, Lixin
author_facet Zhou, Jicheng
Xu, Wentao
You, Zhimin
Wang, Zhe
Luo, Yushang
Gao, Lingfei
Yin, Cheng
Peng, Renjie
Lan, Lixin
author_sort Zhou, Jicheng
collection PubMed
description The use of microwave (MW) irradiation to increase the rate of chemical reactions has attracted much attention recently in nearly all fields of chemistry due to substantial enhancements in reaction rates. However, the intrinsic nature of the effects of MW irradiation on chemical reactions remains unclear. Herein, the highly effective conversion of NO and decomposition of H(2)S via MW catalysis were investigated. The temperature was decreased by several hundred degrees centigrade. Moreover, the apparent activation energy (Ea’) decreased substantially under MW irradiation. Importantly, for the first time, a model of the interactions between microwave electromagnetic waves and molecules is proposed to elucidate the intrinsic reason for the reduction in the Ea’ under MW irradiation, and a formula for the quantitative estimation of the decrease in the Ea’ was determined. MW irradiation energy was partially transformed to reduce the Ea’, and MW irradiation is a new type of power energy for speeding up chemical reactions. The effect of MW irradiation on chemical reactions was determined. Our findings challenge both the classical view of MW irradiation as only a heating method and the controversial MW non-thermal effect and open a promising avenue for the development of novel MW catalytic reaction technology.
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spelling pubmed-48468692016-05-04 A new type of power energy for accelerating chemical reactions: the nature of a microwave-driving force for accelerating chemical reactions Zhou, Jicheng Xu, Wentao You, Zhimin Wang, Zhe Luo, Yushang Gao, Lingfei Yin, Cheng Peng, Renjie Lan, Lixin Sci Rep Article The use of microwave (MW) irradiation to increase the rate of chemical reactions has attracted much attention recently in nearly all fields of chemistry due to substantial enhancements in reaction rates. However, the intrinsic nature of the effects of MW irradiation on chemical reactions remains unclear. Herein, the highly effective conversion of NO and decomposition of H(2)S via MW catalysis were investigated. The temperature was decreased by several hundred degrees centigrade. Moreover, the apparent activation energy (Ea’) decreased substantially under MW irradiation. Importantly, for the first time, a model of the interactions between microwave electromagnetic waves and molecules is proposed to elucidate the intrinsic reason for the reduction in the Ea’ under MW irradiation, and a formula for the quantitative estimation of the decrease in the Ea’ was determined. MW irradiation energy was partially transformed to reduce the Ea’, and MW irradiation is a new type of power energy for speeding up chemical reactions. The effect of MW irradiation on chemical reactions was determined. Our findings challenge both the classical view of MW irradiation as only a heating method and the controversial MW non-thermal effect and open a promising avenue for the development of novel MW catalytic reaction technology. Nature Publishing Group 2016-04-27 /pmc/articles/PMC4846869/ /pubmed/27118640 http://dx.doi.org/10.1038/srep25149 Text en Copyright © 2016, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Zhou, Jicheng
Xu, Wentao
You, Zhimin
Wang, Zhe
Luo, Yushang
Gao, Lingfei
Yin, Cheng
Peng, Renjie
Lan, Lixin
A new type of power energy for accelerating chemical reactions: the nature of a microwave-driving force for accelerating chemical reactions
title A new type of power energy for accelerating chemical reactions: the nature of a microwave-driving force for accelerating chemical reactions
title_full A new type of power energy for accelerating chemical reactions: the nature of a microwave-driving force for accelerating chemical reactions
title_fullStr A new type of power energy for accelerating chemical reactions: the nature of a microwave-driving force for accelerating chemical reactions
title_full_unstemmed A new type of power energy for accelerating chemical reactions: the nature of a microwave-driving force for accelerating chemical reactions
title_short A new type of power energy for accelerating chemical reactions: the nature of a microwave-driving force for accelerating chemical reactions
title_sort new type of power energy for accelerating chemical reactions: the nature of a microwave-driving force for accelerating chemical reactions
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4846869/
https://www.ncbi.nlm.nih.gov/pubmed/27118640
http://dx.doi.org/10.1038/srep25149
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