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首页> 外文期刊>Scientific reports. >A new type of power energy for accelerating chemical reactions: the nature of a microwave-driving force for accelerating chemical reactions
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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

机译：用于加速化学反应的一种新型动力：用于加速化学反应的微波驱动力的性质

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摘要

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 H2S 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.
机译：由于反应速率的显着提高，最近在几乎所有化学领域中，使用微波（MW）辐照提高化学反应速率已引起了广泛的关注。但是，MW辐照对化学反应的影响的内在性质仍不清楚。在此，研究了通过MW催化的NO的高效转化和H 2 S的分解。温度降低了几百摄氏度。此外，在MW辐射下，表观活化能（Ea'）显着降低。重要的是，首次提出了微波电磁波与分子之间相互作用的模型，以阐明在MW照射下Ea'减少的内在原因，以及用于定量估计Ea'减少的公式被确定。 MW辐射能被部分转化以降低Ea'，MW辐射是一种新型的能加速化学反应的能量。确定了微波辐照对化学反应的影响。我们的发现既挑战了将微波辐射仅作为一种加热方法的经典观点，也挑战了有争议的微波非热效应，并为开发新型微波催化反应技术开辟了有希望的途径。

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