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Flow tube calibration and infrared product studies using hydrogen and hydroperoxyl gas-phase radical reactions with nitrogen oxides.

机译：流量管校准和红外产品研究，使用氢和氢过氧气相自由基反应与氮氧化物。

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Gas-phase reactions of nitrogen oxides with hydrogen and hydroperoxyl radicals were investigated in the laboratory by a newly built flow tube instrument. A multipass White cell was attached and an infrared spectrophotometer measured chemical absorbance and concentration at pressures from 2 to 62 Torr. Gas flows were optimized to maximize the production of hydrogen and hydroperoxyl radicals and to control the concentration and velocity of gaseous species. The pathlength of the White cell was measured by use of multiple IR-active gases and its value was constrained to 500--800 cm.;A product study concluded that the reaction of HO2 + NO at 62 Torr and 295 K produced 71 +/- 5% NO2, 17 +/- 3% HONO 2, and 63 +/- 42% HONO after a reaction time of 1.8 s. Another product study of the reaction of H + NO2 at 51 Torr and 295 K qualitatively showed the production of products.

机译：在实验室中，通过新型流量管仪器研究了氮氧化物与氢和氢过氧自由基的气相反应。连接多通道白电池，红外分光光度计在2至62托的压力下测量化学吸收率和浓度。优化气流以最大程度地产生氢和氢过氧自由基，并控制气态物质的浓度和速度。通过使用多种红外活性气体测量白电池的光程长度，并将其值限制在500--800 cm .;一项产品研究得出结论，HO2 + NO在62 Torr和295 K下的反应产生71 + / -在1.8 s的反应时间后，5％的NO2、17 +/- 3％的HONO 2和63 +/- 42％的HONO。 H + NO 2在51 Torr和295 K下反应的另一项产品研究定性地显示了产物的产生。

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作者
Koutros, Christopher C.;
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作者单位

University of Massachusetts Boston.;

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授予单位 University of Massachusetts Boston.;
学科 Atmospheric chemistry.;Analytical chemistry.;Physical chemistry.
学位 M.S.
年度 2014
页码 169 p.
总页数 169
原文格式 PDF
正文语种 eng
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Flow tube calibration and infrared product studies using hydrogen and hydroperoxyl gas-phase radical reactions with nitrogen oxides.

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