Nonthermal influence of microwave power on chemical reactions

被引：74

作者：

Shibata, C

Kashima, T

Ohuchi, K

机构：

[1] Department of Applied Electronics, Daido Institute of Technology, Nagoya 457

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1996年 / 35卷 / 1A期

关键词：

nonthermal influence; microwave heating; reaction velocity; Arrhenius' plot; activation energy;

D O I：

10.1143/JJAP.35.316

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

To clarify the effect of microwave irradiation on acceleration of chemical reactions other than heating, Arrhenius' plots were taken for the disintegration reaction of sodium hydrogen carbonate water solution. Then to observe the influence of microwave field on the reaction, gas-generating velocities with different irradiated microwave powers were measured under a constant temperature condition. As a result, it was recognized that the micron ave field acts to decrease the activation energy of the reaction. Next, pulsed and CW microwave powers, both having the same mean power, were applied to the solution and the pulsed microwave field was observed to accelerate disintegration more than CW. Although the molecular mechanism is not clear, a decrease of the activation energy seems to accelerate the reaction.

引用

页码：316 / 319

页数：4