An experimental study was carried out on the direct nitration of 1,4,5,8-tetraaza-bicyclo-[4,4,0]-decane to synthesize 1,4,5,8-tetranitro-l,4,5,8-tetraazabicyclo-[4,4,0]-decane （TNAD） with N205 catalyzed by acidic i...An experimental study was carried out on the direct nitration of 1,4,5,8-tetraaza-bicyclo-[4,4,0]-decane to synthesize 1,4,5,8-tetranitro-l,4,5,8-tetraazabicyclo-[4,4,0]-decane （TNAD） with N205 catalyzed by acidic ionic liquids. Various ionic liquids, such as [HMim]X, [（CH2）4SO3HMim]X and [Capl]X （X =pTSO-, NO3 , HS04-）, and various parameters such as equivalents of ionic liquid, molar ratio of N205 tO the starting material, reaction time and temperature, and solvent were investigated, Ionic liquid [（CH2）4SO3HMim]HS04 showed better catalytic activity. In the presence of 3% molar ratio of [（CH2）4SO3HMim]HS04 ionic liquid to the staring material, the yield of 1,4,5,8-tetranitro-l,4,5,8- tetraazabicvclo-14.4.01-decane was improved bv 6.2~; comnared to the system without ionic liauid.展开更多
Three-electrode plasma jet system consisting of a perforated dielectric tube with two outer and one floating inner electrodes was developed and employed for nano-coating processes of Si [1 0 0] wafer. Lowered gas brea...Three-electrode plasma jet system consisting of a perforated dielectric tube with two outer and one floating inner electrodes was developed and employed for nano-coating processes of Si [1 0 0] wafer. Lowered gas breakdown voltage, increasing plasma density and increased discharge current were achieved by using the floating inner electrode. The low temperature (Nonthermal) Atmospheric Pressure Plasma protective coating technique using precursor-containing gases (Ar, O2 and OMCTS mixture) which injected into Plasma Jet (APPJ), there are several techniques are introduced here to avoid substrate damage including increasing plasma density without increasing the kinetic energy of the ion bombardment. Furthermore some few precautions are given here to insure good media for silicon wafer prepared for coating.展开更多
基金financial support from the Nature Science Foundation of Jiangsu Province (No. BK2011697)
文摘An experimental study was carried out on the direct nitration of 1,4,5,8-tetraaza-bicyclo-[4,4,0]-decane to synthesize 1,4,5,8-tetranitro-l,4,5,8-tetraazabicyclo-[4,4,0]-decane （TNAD） with N205 catalyzed by acidic ionic liquids. Various ionic liquids, such as [HMim]X, [（CH2）4SO3HMim]X and [Capl]X （X =pTSO-, NO3 , HS04-）, and various parameters such as equivalents of ionic liquid, molar ratio of N205 tO the starting material, reaction time and temperature, and solvent were investigated, Ionic liquid [（CH2）4SO3HMim]HS04 showed better catalytic activity. In the presence of 3% molar ratio of [（CH2）4SO3HMim]HS04 ionic liquid to the staring material, the yield of 1,4,5,8-tetranitro-l,4,5,8- tetraazabicvclo-14.4.01-decane was improved bv 6.2~; comnared to the system without ionic liauid.
文摘Three-electrode plasma jet system consisting of a perforated dielectric tube with two outer and one floating inner electrodes was developed and employed for nano-coating processes of Si [1 0 0] wafer. Lowered gas breakdown voltage, increasing plasma density and increased discharge current were achieved by using the floating inner electrode. The low temperature (Nonthermal) Atmospheric Pressure Plasma protective coating technique using precursor-containing gases (Ar, O2 and OMCTS mixture) which injected into Plasma Jet (APPJ), there are several techniques are introduced here to avoid substrate damage including increasing plasma density without increasing the kinetic energy of the ion bombardment. Furthermore some few precautions are given here to insure good media for silicon wafer prepared for coating.
