Diffusion and chemical interaction of hydroxyl generated from photodissociation of water vapor in the temperature range in 294 K–891 K in helium flow
Source abstract
Abstract
This paper summarizes the direct observation of tagged hydroxyl within 200 µs after its formation in the temperature range of 294 K–891 K. We estimate the time and temperature frame of the coexistence of chemical reactions and diffusion based on analysis of the behavior of the tagging fluorescence spot of photodissociation hydroxyl. The reasons for the existence of chemical reactions and interactions between chemical reactions and diffusion are then analyzed. Theoretical and experimental identification of this frame can be explored for non-contact spectral measurements based on hydroxyl in a general flow field.
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Research context
OpenAlex topics: Spectroscopy and Laser Applications · Atmospheric and Environmental Gas Dynamics · Atmospheric chemistry and aerosols
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Energy and Power Engineering, Xi’an Jiaotong University 1 , Xi’an, China
State Key Laboratory of Laser Interaction with Matter, Northwest Institute of Nuclear Technology 2 , Xi’an, China
Shannxi Key Lab of Information Photonic Technique, School of Electronic and Information Engineering, Xi’an Jiaotong University 3 , Xi’an, China
Funding
Foundation of State Key Laboratory of Laser Interaction with Matter · National Natural Science Foundation of China
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