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Abstract  

The decomposition reaction kinetics of the double-base (DB) propellant (No. TG0701) composed of the mixed ester of triethyleneglycol dinitrate (TEGDN) and nitroglycerin (NG) and nitrocellulose (NC) with cerium(III) citrate (CIT-Ce) as a combustion catalyst was investigated by high-pressure differential scanning calorimetry (PDSC) under flowing nitrogen gas conditions. The results show that pressure (2 MPa) can decrease the peak temperature and increase the decomposition heat, and also can change the mechanism function of the exothermal decomposition reaction of the DB gun propellant under 0.1 MPa; CIT-Ce can decrease the apparent activation energy of the DB gun propellant by about 35 kJ mol−1 under low pressure, but it can not display the effect under high pressure; CIT-Ce can not change the decomposition reaction mechanism function under a pressure.

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The complete oxidation of styrene-divinylbenzene has been examined with complex thermoanalytical methods by derivatograph and thermogastitrimeter. With the combined application of combustion catalyst and postcatalytic method the oxidation of the styrene-divinylbenzene is complete.

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Oxidation of three selected organic model materials, saccharose, gelatine and styrene-divinylbenzene with and without combustion catalysts, was studied with a derivatograph.

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Abstract  

The constant-volume combustion energies of the lead salts of 2-hydroxy-3,5-dinitropyridine (2HDNPPb) and 4-hydroxy-3,5-dinitropyridine (4HDNPPb), ΔU c (2HDNPPb(s) and 4HDNPP(s)), were determined as –4441.922.43 and –4515.741.92 kJ mol–1 , respectively, at 298.15 K. Their standard enthalpies of combustion, Δc m H θ(2HDNPPb(s) and 4HDNPPb(s), 298.15 K), and standard enthalpies of formation, Δr m H θ(2HDNPPb(s) and 4HDNPPb(s), 298.15 K) were as –4425.812.43, –4499.631.92 kJ mol–1 and –870.432.76, –796.652.32 kJ mol–1 , respectively. As two combustion catalysts, 2HDNPPb and 4HDNPPb can enhance the burning rate and reduce the pressure exponent of RDX–CMDB propellant.

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, Ionescu , N , Postole , G , Bratan , V 2007 Supported oxides as combustion catalysts and as humidity sensors. Tuning the surface behavior by inter-phase charge transfer . Microporous Mesoporous Mater 99 1–2 126 – 131 10.1016/j.micromeso.2006

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needed. Recently, ceria has been shown to have potential applications in the removal of soot from diesel engine exhaust [ 7 ], catalytic waste oxidation for the removal of organics from waste waters [ 8 ], and as a component of combustion

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Journal of Thermal Analysis and Calorimetry
Authors: Lingli Peng, Xiangyu Xu, Zhi Lv, Jiaqing Song, Mingyuan He, Qian Wang, Lijun Yan, Yang Li, and Zhaofei Li

fibrous structure exhibits large porosity and strong resistance to sintering when calcined at high temperatures so that these Al 2 O 3 nanofibers can be used as supports for catalysts working at high temperatures, for instance, such as combustion

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. Bueno-López , “ Diesel soot combustion catalysts: Review of active phases ,” Chem. Pap. , vol. 68 , no. 9 , 2014 . 10.2478/s11696-013-0469-7 [23] M. Jabłońska and R. Palkovits , “ Nitrogen oxide removal over hydrotalcite-derived mixed metal

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, composed of nitrocellulose (NC) and nitroglycerine (NG), CL-20, combustion catalyst and other assistant reagent. The ratio of each component in different CL-20/CMDB propellant is listed in Table 1 . Each sample was prepared by an extrusion technique

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Reaction Kinetics, Mechanisms and Catalysis
Authors: Viorel Chihaia, Karl Sohlberg, M. Scurtu, S. Mihaiu, M. Caldararu, and M. Zaharescu

, Chesler , P , Carata , M , Hornoiu , C , Ionescu , NI , Postole , G , Bratan , V 2007 Supported oxides as combustion catalysts and as humidity sensors. Tuning the surface behavior by inter-phase charge transfer . Microporous Mesoporous Mater 99

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