Hydrothermal preparation of Fe2O3/graphene nanocomposite and its enhanced catalytic activity on the thermal decomposition of ammonium perchlorate

Yuan, Yuan; Jiang, Wei; Wang, Yujiao; Shen, Ping; Li, Fengsheng; Li, Pingyun; Zhao, Fengqi; Gao, Hongxu

doi:10.1016/j.apsusc.2014.03.005

Cited by 128 publications

(61 citation statements)

References 51 publications

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“…Znajduje to odbicie w istotnym wzroście ich reaktywności chemicznej i temperatury produktów detonacji. Ponadto obserwuje się znaczne przyspieszenie osiągania stanu równowagi dystrybucji produktów ich rozkładu oraz polepszenie właściwości piroforycznych, co prowadzi do istotnego wzrostu efektywność ich działania [9,11,16,19,21,33,39,40,122,153,[156][157][158][159][160][161][162][163][164][165]; -termity (ang. thermites) określane też mianem termitów Goldschmidta lub mieszanin pirotechnicznych składających się z proszku określonego metalu spełniającego rolę reduktora zmieszanego w odpowiedniej proporcji z proszkiem właściwego tlenku metalu pełniącego rolę utleniacza oraz odpowiedniego paliwa, jako inicjatora reakcji.…”

Section: Zastosowania Nanomateriałów Do Celów Militarnychunclassified

Aspekty nanomateriałów w zastosowaniach cywilnych i militarnych. Część 2. Wykorzystanie i obawy wynikające z ich uwalniania do środowiska przyrodniczego

Foltynowicz¹,

Poznań²,

Czajka³

et al. 2017

Mat. Wys.

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Section: Zastosowania Nanomateriałów Do Celów Militarnychunclassified

Aspekty nanomateriałów w zastosowaniach cywilnych i militarnych. Część 2. Wykorzystanie i obawy wynikające z ich uwalniania do środowiska przyrodniczego

Foltynowicz¹,

Poznań²,

Czajka³

et al. 2017

Mat. Wys.

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“…Moreover, the catalyst effect can be improved by combining nano metal oxide or nano metal with carbon material. 6 Obtaining the carbon-based composites, can be accomplished through two methods; one is by loading nano metal oxide or nano metal on or in carbon materials, 7 and another is by coating carbon materials on nano metal particles. 8 Carbon-coated metal nanoparticles with unique core-shell structure not only have large specific surface area and adsorption capacity, but also have good conductive and heat transfer performance, making it a potentially good catalyst for AP decomposition.…”

Section: Introductionmentioning

confidence: 99%

Carbon-coated copper nanoparticles prepared by detonation method and their thermocatalysis on ammonium perchlorate

Ding

et al. 2017

AIP Advances

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Carbon-coated copper nanoparticles (CCNPs) were prepared by initiating a high-density charge pressed with a mixture of microcrystalline wax, hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX), and copper nitrate hydrate (Cu(NO3)2·3H2O) in an explosion vessel filled with nitrogen gas. The detonation products were characterized by transmission electron microcopy (TEM), high resolution transmission electron microcopy (HRTEM), energy dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), and Raman spectroscopy. The effects of CCNPs on thermal decomposition of ammonium perchlorate (AP) were also investigated by differential scanning calorimeter (DSC). Results indicated that the detonation products were spherical, 25-40 nm in size, and had an apparent core-shell structure. In this structure, the carbon shell was 3-5 nm thick and mainly composed of graphite, C8 (a kind of carbyne), and amorphous carbon. When 5 wt.% CCNPs was mixed with 95 wt.% AP, the high-temperature decomposition peak of AP decreased by 95.97, 96.99, and 96.69 °Cat heating rates of 5, 10, and 20 °C/min, respectively. Moreover, CCNPs decreased the activation energy of AP as calculated through Kissinger’s method by 25%, which indicated outstanding catalysis for the thermal decomposition of AP.

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“…The Refs. [17,18] have found that GO has little influence on the thermal decomposition of ammonium perchorate, even at a high temperature (400 °C). Hence GO itself was not reinvestigated for catalyzing the thermal decomposition of AN, for a decomposition temperature of about 300 °C.…”

Section: The Influence On the Thermal Decomposition Of An With Catalystsmentioning

confidence: 99%

Thermal Decomposition CharacteristicS of Ammonium Nitrate(v) in the Presence of Mn2O3/Graphene Oxides

et al. 2017

Cent. Eur. J. Energ. Mater.

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Nano-composites (Mn2O3, Mn2O3/graphene oxides (GO)) were prepared by a new method. The nano-composites were characterized by XRD and HRTEM. The catalytic performance of the nano-composites on the thermal decomposition of ammonium nitrate(V) (AN) was investigated by TG-DSC and TG-MS. The reaction of AN with the nano-composites in the condensed phase was investigated by RSFTIR. The results of TG-DSC experiments indicated that the nano-composites significantly catalyze the thermal decomposition of AN, especial Mn2O3/GO. The exothermic reaction of AN with Mn2O3/GO commenced at about 185 °C. Based on the TG-MS results, it was ascribed to N2O formation. In the RSFTIR experiments, the dissociation reaction and ionization reaction of AN were both detected. NOx formation at low temperature was also found. NH2 was directly oxidized by HNO3/NO3− at low temperature. The interaction between Mn2O3 and NH3 was detected according to DRIFT experiments. At elevated temperature, the functional groups of GO are destroyed, which had an influence on the interaction between Mn2O3 and GO. A probable mechanism for the exothermic reaction and then its disappearance is proposed. HNO3 gas was absorbed on the surface of solid AN, which can markedly catalyze the thermal decomposition of AN. Perhaps the HNO3 plays a key role in the exothermic reaction and then the reaction of AN disappears at very low temperatures.

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Hydrothermal preparation of Fe2O3/graphene nanocomposite and its enhanced catalytic activity on the thermal decomposition of ammonium perchlorate

Cited by 128 publications

References 51 publications

Aspekty nanomateriałów w zastosowaniach cywilnych i militarnych. Część 2. Wykorzystanie i obawy wynikające z ich uwalniania do środowiska przyrodniczego

Aspekty nanomateriałów w zastosowaniach cywilnych i militarnych. Część 2. Wykorzystanie i obawy wynikające z ich uwalniania do środowiska przyrodniczego

Carbon-coated copper nanoparticles prepared by detonation method and their thermocatalysis on ammonium perchlorate

Thermal Decomposition CharacteristicS of Ammonium Nitrate(v) in the Presence of Mn2O3/Graphene Oxides

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