激光波长调制光谱法直接测量和诊断NOx化学反应动力学的初步研究

IF 3.3 2区物理与天体物理 Q2 OPTICS

Chinese Optics Letters Pub Date : 2023-01-01 DOI:10.3788/col202321.011202

Yongjian Li, Shuai Zhang, Jinyi Li, Xiaotao Yang, Yunfei Meng, Xu Liu, Z. Du

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引用次数: 2

摘要

目前对气相化学反应动力学的研究主要依靠计算或模拟，缺乏简单、快速、准确的直接测量方法。我们开发了一种可调谐激光分子吸收光谱测量系统，利用波长调制光谱技术直接测量臭氧与氮氧化物(NO x)氧化还原反应过程中的分子浓度、反应温度和压力变化，以0.1 s的时间分辨率进行在线测量和诊断。该研究为研究气相化学反应动力学提供了一种有前途的诊断工具。

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Preliminary study on direct measurements and diagnostics for chemical reaction dynamics of NOx by using laser wavelength modulation spectroscopy

Studies on the kinetics of gas-phase chemical reactions currently rely on calculations or simulations and lack simple, fast, and accurate direct measurement methods. We developed a tunable laser molecular absorption spectroscopy measurement system to achieve direct measurements of such reactions by using wavelength modulated spectroscopy and performed online measurements and diagnostics of molecular concentration, reaction temperature, and pressure change during the redox reaction of ozone with nitrogen oxides (NO x ) with 0.1 s temporal resolution. This study provides a promising diagnostic tool for studying gas-phase chemical reaction kinetics.

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来源期刊

Chinese Optics Letters 物理-光学

CiteScore

5.60

自引率

20.00%

发文量

180

审稿时长

2.3 months

期刊介绍： Chinese Optics Letters (COL) is an international journal aimed at the rapid dissemination of latest, important discoveries and inventions in all branches of optical science and technology. It is considered to be one of the most important journals in optics in China. It is collected by The Optical Society (OSA) Publishing Digital Library and also indexed by Science Citation Index (SCI), Engineering Index (EI), etc. COL is distinguished by its short review period (~30 days) and publication period (~100 days). With its debut in January 2003, COL is published monthly by Chinese Laser Press, and distributed by OSA outside of Chinese Mainland.