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High Catalytic Activity of Nitrogen‐Doped Graphene on the Thermal Decomposition of CL‐20
Author(s) -
Zhang Ting,
Guo Yu,
Li Jiachen,
Guan Yulei,
Guo Zhaoqi,
Ma Haixia
Publication year - 2018
Publication title -
propellants, explosives, pyrotechnics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.56
H-Index - 65
eISSN - 1521-4087
pISSN - 0721-3115
DOI - 10.1002/prep.201800014
Subject(s) - graphene , thermal decomposition , materials science , catalysis , oxide , differential scanning calorimetry , chemical engineering , dopant , decomposition , nitrogen , carbon fibers , hydrothermal circulation , heteroatom , doping , inorganic chemistry , nanotechnology , composite material , composite number , chemistry , organic chemistry , alkyl , thermodynamics , physics , optoelectronics , engineering , metallurgy
Graphene based materials with excellent physical properties have attracted much attention in the field of energetic materials. Notably, heteroatom doping could modify the property of graphene. Herein, nitrogen‐doped graphene (NGO) with a tunable hierarchical morphology and high surface areas was prepared by a hydrothermal method. NGO composites with 2,4,6,8,10,12‐hexanitro‐2,4,6,8,10,12‐hexaazaisowurtzitane (CL‐20) were obtained by recrystallization in ethyl acetate. Subsequently, the catalytic activities of NGO and undoped reduced graphene oxide (rGO) on the thermal decomposition of CL‐20 were investigated using differential scanning calorimetry (DSC). The decomposition temperature, self‐accelerating decomposition temperature, and thermal ignition temperature of CL‐20 all decrease under the influence of NGO. This is attributed to change in charge distribution of carbon atoms influenced by nitrogen dopants and more active sites induced on graphene surface. As a result, NGO exhibits enhanced catalytic effect on the thermal decomposition of CL‐20.