In this paper,gaseous products generated by radiation degradation of N,N-diethylhydroxylamine (DEHA) in aqueous solution are studied.The results show that by 10～1000 kGy irradiation of the solution in DEHA concentrat...In this paper,gaseous products generated by radiation degradation of N,N-diethylhydroxylamine (DEHA) in aqueous solution are studied.The results show that by 10～1000 kGy irradiation of the solution in DEHA concentration of 0.1～0.5 mol·L^(-1),the gaseous products were mainly hydrogen,methane,ethane and ethene.The volume fraction of hydrogen did not change much with different concentrations of DEHA.The volume fraction of methane and ethane decreased,but that of ethene increased,with increasing DEHA concentration.The volume fraction of hydrogen,methane and ethane increased with the dose.The relationship of the volume fraction of ethene with the dose had something to do with the DEHA concentration.展开更多
The product channels and mechanisms of the C2HC12＋O2 reaction are investigated by step-scan time-resolved Fourier transform infrared emission spectroscopy and the G3MP2// B3LYP/6-311G（d,p） level of electronic struc...The product channels and mechanisms of the C2HC12＋O2 reaction are investigated by step-scan time-resolved Fourier transform infrared emission spectroscopy and the G3MP2// B3LYP/6-311G（d,p） level of electronic structure calculations. Vibrationally excited products of HCI, CO, and CO2 are observed in the IR emission spectra and the product vibrational state distribution are determined which shows that HCI and CO are vibrationally excited with the nascent average vibrational energy estimated to be 59.8 and 51.8 kJ/mol respectively. In combination with the G3MP2//B3LYP/6-311G（d,p） calculations, the reaction mechanisms have been characterized and the energetically favorable reaction pathways have been suggested.展开更多
基金Natural Science Foundation of China (Contract No.20771074)Shanghai Leading Academic Disciplines (Contract No.T0105)
文摘In this paper,gaseous products generated by radiation degradation of N,N-diethylhydroxylamine (DEHA) in aqueous solution are studied.The results show that by 10～1000 kGy irradiation of the solution in DEHA concentration of 0.1～0.5 mol·L^(-1),the gaseous products were mainly hydrogen,methane,ethane and ethene.The volume fraction of hydrogen did not change much with different concentrations of DEHA.The volume fraction of methane and ethane decreased,but that of ethene increased,with increasing DEHA concentration.The volume fraction of hydrogen,methane and ethane increased with the dose.The relationship of the volume fraction of ethene with the dose had something to do with the DEHA concentration.
基金V. ACKNOWLEDGMENTS This work was supported by the National Natural Science Foundation of China （No.20733005, No.20673126, and No.20973179）, the National Basic Research Program of China （No.2007CB815200 and No.2007AA02Z116）, and the Chinese Academy of Sciences.
文摘The product channels and mechanisms of the C2HC12＋O2 reaction are investigated by step-scan time-resolved Fourier transform infrared emission spectroscopy and the G3MP2// B3LYP/6-311G（d,p） level of electronic structure calculations. Vibrationally excited products of HCI, CO, and CO2 are observed in the IR emission spectra and the product vibrational state distribution are determined which shows that HCI and CO are vibrationally excited with the nascent average vibrational energy estimated to be 59.8 and 51.8 kJ/mol respectively. In combination with the G3MP2//B3LYP/6-311G（d,p） calculations, the reaction mechanisms have been characterized and the energetically favorable reaction pathways have been suggested.
