Chromium Copper Catalysts for LiClO4 Decomposition

作者: Yanwei Zhang , Ke Yan , Kunzan Qiu , Jianzhong Liu , Yang Wang

DOI: 10.1002/PREP.201400239

关键词: CopperLithium perchlorateCopper chromiteDecompositionInorganic chemistryCatalysisEnergy sourceMaterials scienceIndustrial catalystsChromium

摘要: Chromium copper (CrCu) catalysts are well-known burning rate for solid propellants, which were used as energy source rocket propulsion [1]. The present work reports the enhancement of lithium perchlorate (LiClO4) by employing chromium a catalyst. LiClO4 decomposition depends on catalyst characteristics, such chemical composition, specific surface, and crystalline structure. Scanning electron microscopy, Brunauer-Emmett-Teller, X-ray diffraction, photoelectron spectroscopy, H2-temperature-programmed reduction analyses to characterize CrxCu(1−x)O(1+0.5x) catalysts. samples prepared using sol-gel method with different mole ratios. Furthermore, tested evaluate their effect at various temperatures. blank tests comparison shows that strongly enhance decomposition. Moreover, CuCr2O4 is formed in CrCu binary composite show smaller crystallites, larger surface area, better catalytic performance than pure CuO because interaction Cr Cu ions. This study proposes hypothetical reaction mechanism

参考文章(26)
Mónica Crivello, Celso Pérez, Julio Fernández, Griselda Eimer, Eduardo Herrero, Sandra Casuscelli, Enrique Rodríguez-Castellón, Synthesis and characterization of Cr/Cu/Mg mixed oxides obtained from hydrotalcite-type compounds and their application in the dehydrogenation of isoamylic alcohol Applied Catalysis A-general. ,vol. 317, pp. 11- 19 ,(2007) , 10.1016/J.APCATA.2006.08.035
T WYDEVEN, Catalytic decomposition of sodium chlorate Journal of Catalysis. ,vol. 19, pp. 162- 171 ,(1970) , 10.1016/0021-9517(70)90279-4
Minhua Zhang, Guiming Li, Haoxi Jiang, Jiyan Zhang, Investigation on Process Mechanism on Cu-Cr Catalysts for Ethanol Dehydrogenation to Ethyl Acetate Catalysis Letters. ,vol. 141, pp. 1104- 1110 ,(2011) , 10.1007/S10562-011-0635-X
Satyen Kumar Das, Pravakar Mohanty, Sachchit Majhi, Kamal Kishore Pant, CO-hydrogenation over silica supported iron based catalysts: Influence of potassium loading Applied Energy. ,vol. 111, pp. 267- 276 ,(2013) , 10.1016/J.APENERGY.2013.04.070
Lijuan Chen, Liping Li, Guangshe Li, Synthesis of CuO nanorods and their catalytic activity in the thermal decomposition of ammonium perchlorate Journal of Alloys and Compounds. ,vol. 464, pp. 532- 536 ,(2008) , 10.1016/J.JALLCOM.2007.10.058
J. C. Cannon, Y. C. Zhang, Catalytic decomposition of potassium chlorate Journal of Thermal Analysis and Calorimetry. ,vol. 41, pp. 981- 993 ,(1994) , 10.1007/BF02547189