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用tr-ftir研究CH+NO_2的反应

Chinese Journal of Chemical Physics 2002年第2期15卷 81-82页

作者：任丽孔繁敖中国科学院化学所分子反应动力学国家重点实验室北京100080

The gaseous reaction of CH+NO 2 has been investigated experimentally. CH radical was generated by multiple photon photolysis of CHBr 3 at 248 nm. Vibrationally excited species of HCO (ν 3), CO( v ), CO 2 (ν 3), HNO (ν 1), OH( v ) were detected as emitters of CH+NO 2 reaction by time resolved Fourier transform spectroscope. Three exothermic reaction channels leading to HCO+NO, NH+CO 2, CO+HNO, are identified. The minor reaction leading to OH+NCO may also occur.

关键词： NO2 tr-ftir CH自由基烃燃烧反应机理二氧化氮红外光谱速率常数

Time-Resolved ftir Study on the Reaction of CHCl2 with NO2

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Chinese Journal of Chemical Physics 2009年第2期22卷 134-138页

作者： Kun-hui Liu Chun-fan Yang Huan Wang Wei-qiang Wu Hong-mei Su State Key Laboratory of Molecular Reaction Dynamics Beijing National Laboratory for Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China

The environmentally important free radical reaction of chlorinated methyl CHCl2 with NO2 was investigated by step-scan time-resolved ftir （tr-ftir） emission spectroscopy. Vibrationally excited products of CHClO, NO, CO, and HCl are observed in the high-resolution IR emission spectra and three possible reaction channels are therefore elucidated. In particular, the product CO is newly detected and the product HCl is identified explicitly as a yield from the CHCl2＋NO2 reaction, taking advantage of the sensitive detection of HCl and CO with tr-ftir. These results are of particular interests to understand the related realistic chemical processes including atmospheric photochemistry, biofuel combustion, waste destruction, and smoking fire.

关键词： tr-ftir Dichloromethyl NO2 Reaction product channel

The Reaction of CH_3+NO in Gaseous Phase

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Chinese Chemical Letters 2001年第11期12卷 971-974页

作者： Hui WANG Zhou LU Fan Ao KONG The State Key Lab of Molecular Reaction Dynamics the Center for Molecular SciencesInstitute of ChemistryChinese Academy of SciencesBeijing 100080

Time-resolved Fourier transform infrared emission spectroscopy is employed for studing gaseous reaction of CH3 with NO. The CH3 radical was produced by laser photolysis of CH3Br at 248 nm. The infrared emissions of vibrationally excited nascent products HCO (n3), HCN (n1, n3), NH2 (n3), secondary product HNO (n1) and possible product HNCO (n1) were observed. It verifies that the reaction channels of HCO + NH2 and HCN+H2O exist, and that one other channel HNCO + H may also occur.

关键词： CH3 NO tr-ftir reaction channel.

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丙烯酰氯分子的气相光解动力学

中国科学：化学 2011年第3期41卷 1406-1414页

作者：杨春帆吴为强刘坤辉王欢苏红梅北京分子科学国家实验室分子反应动力学国家重点实验室中国科学院化学研究所

利用时间分辨傅立叶变换红外(tr-ftir)发射光谱研究了气相中CH2=CHCOCl分子的光解动力学.观测到振动激发的光解碎片分子CO(ν≤5),HCl(ν≤6),C2H2和相应的两个光解离通道:C-Cl键断裂和HCl消除通道.通过分析转动分辨的红外发射光谱得到C... 详细信息

利用时间分辨傅立叶变换红外(tr-ftir)发射光谱研究了气相中CH2=CHCOCl分子的光解动力学.观测到振动激发的光解碎片分子CO(ν≤5),HCl(ν≤6),C2H2和相应的两个光解离通道:C-Cl键断裂和HCl消除通道.通过分析转动分辨的红外发射光谱得到CO和HCl的初始振转能量态分布,由此提出CH2=CHCOCl的气相光解机理并阐明了内转换等非绝热过程在影响反应途径中的关键作用.

关键词： tr-ftir 光解振动转动态分布四中心消除机理内转换

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负载型Rh,Ru催化剂上甲烷部分氧化制合成气反应机理的原位时间分辨红外光谱研究

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科学通报 2000年第16期45卷 1732-1737页

作者：翁维正陈明树严前古吴廷华晁自胜廖远琰万惠霖厦门大学化学系固体表面物理化学国家重点实验室物理化学研究所厦门361005 浙江师范大学化学系金华321004

采用原位时间分辨红外光谱（ｉｎｓｉｔｕＴＲ－ＦＴＩＲ）技术，在５００～６００℃、时间分辨率优于０．３ｓ的条件下，对ＣＨ４／Ｏ２／Ｈｅ（２／１／４５，摩尔比）混合气在不同预处理后的Ｒｈ／ＳｉＯ２，Ｒｕ／γ－Ａｌ２Ｏ... 详细信息

采用原位时间分辨红外光谱（ｉｎｓｉｔｕＴＲ－ＦＴＩＲ）技术，在５００～６００℃、时间分辨率优于０．３ｓ的条件下，对ＣＨ４／Ｏ２／Ｈｅ（２／１／４５，摩尔比）混合气在不同预处理后的Ｒｈ／ＳｉＯ２，Ｒｕ／γ－Ａｌ２Ｏ３和Ｒｕ／ＳｉＯ２上的反应及其与催化剂上吸附ＣＯ物种的作用情况进行了跟踪、考察。实验结果表明，在还原态和工作态Ｒｈ／ＳｉＯ２上，ＣＯ是ＰＯＭ反应的初级产物。

关键词：甲烷部分氧化合成气钌负载型催化剂 tr-ftir