典型文献
In situ quantification of NO synthesis in a warm air glow discharge by WMS-based Mid-IR QCL absorption spectroscopy
文献摘要：
Nitric oxide(NO)is one of the most crucial products in the plasma-based nitrogen fixation process.In this work,in situ measurements were performed for quantifying the NO synthesis spatially in a warm air glow discharge,through the method of Mid-infrared quantum cascade laser absorption spectroscopy(QCL-AS).Two ro-vibrational transitions at 1900.076 cm-1 and 1900.517 cm-1 of the ground-state NO(X)were probed sensitively by the help of the wavelength modulation spectroscopy(WMS)approach to increase the signal/noise(S/N)level.The results show a decline trend of NO synthesis rate along the discharge channel from the cathode to the anode.However,from the point of energy efficiency,the cathode region is of significantly low energy efficiency of NO production.Severe disproportionality was found for the high energy consumption but low NO production in the region of cathode area,compared to that in the positive column zone.Further analysis demonstrates the high energy cost of NO production in the cathode region,is ascribed to the extremely high reduced electric field E/N therein not selectively preferable for the processes of vibrational excitation or dissociation of N2 and 02 molecules.This drags down the overall energy efficiency of NO synthesis by this typical warm air glow discharge,particularly for the ones with short electrode gaps.Limitations of further improving the energy cost of NO synthesis by variations of the discharge operation conditions,such as discharge current or airflow rate,imply other effective manners able to tune the energy delivery selectively to the NO formation process,are sorely needed.
文献关键词：
中图分类号：
作者姓名：
Chuanqi WANG;Junjie QIAO;Yijia SONG;Qi YANG;Dazhi WANG;Qingyuan ZHANG;Zhan SHU;Qing XIONG
作者机构：
State Key Laboratory of Power Transmission Equipment&System Security and New Technology,Chongqing University,Chongqing 400044,People's Republic of China
文献出处：
引用格式：
[1]Chuanqi WANG;Junjie QIAO;Yijia SONG;Qi YANG;Dazhi WANG;Qingyuan ZHANG;Zhan SHU;Qing XIONG-.In situ quantification of NO synthesis in a warm air glow discharge by WMS-based Mid-IR QCL absorption spectroscopy)[J].等离子体科学和技术（英文版）,2022(04):155-163
A类：
disproportionality,sorely
B类：
In,situ,quantification,synthesis,warm,glow,discharge,by,WMS,Mid,QCL,absorption,spectroscopy,Nitric,oxide,most,crucial,products,plasma,nitrogen,fixation,this,work,measurements,were,performed,quantifying,spatially,through,method,infrared,quantum,cascade,laser,AS,Two,vibrational,transitions,ground,state,probed,sensitively,help,wavelength,modulation,approach,increase,signal,noise,level,results,show,decline,trend,along,channel,from,cathode,anode,However,point,energy,efficiency,region,significantly,production,Severe,was,found,high,consumption,but,area,compared,that,positive,column,zone,Further,analysis,demonstrates,cost,ascribed,extremely,reduced,electric,field,therein,not,selectively,preferable,processes,excitation,dissociation,N2,molecules,This,drags,down,overall,typical,particularly,ones,short,electrode,gaps,Limitations,further,improving,variations,operation,conditions,such,current,airflow,imply,other,effective,manners,tune,delivery,formation,needed
AB值：
0.542933
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