Authors:J. Yi, F. Zhao, S. Xu, L. Zhang, X. Ren, H. Gao, and R. Hu
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.
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.
Authors:Z. Fengqi, G. Hongxu, L. Yang, H. Rongzu, C. Pei, G. Sheng-li, Y. Xu-wu, and S. Qizhen
The constant-volume combustion energies of
the lead salts of 2-hydroxy-3,5-dinitropyridine (2HDNPPb) and 4-hydroxy-3,5-dinitropyridine
(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, Δcm
H θ(2HDNPPb(s) and 4HDNPPb(s), 298.15 K), and standard enthalpies of formation,
Δrm 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.
Authors:C. Munteanu, M. Caldararu, V. Bratan, P. Yetisemiyen, G. Karakas, and N. I. Ionescu
, Ionescu , N , Postole , G , Bratan , V 2007 Supported oxides as combustioncatalysts 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
Authors:Van-Khoa Nguyen, Jung-Hyun Park, and Chae-Ho Shin
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
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
Authors:Xiao-Ling Xing, Feng-Qi Zhao, Shun-Nian Ma, Si-Yu Xu, Li-Bai Xiao, Hong-Xu Gao, and Rong-Zu Hu
, composed of nitrocellulose (NC) and nitroglycerine (NG), CL-20, combustioncatalyst 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
key factor for the catalytic combustion technology. In order to degrade VOCs efficiently, an active catalyst is desired.
Many efforts have been devoted to exploring efficient combustioncatalysts. Among the reported catalysts, monolith