摘要
介绍了钒基材料如五氧化二钒(V2O5)、水合七氧化三钒(V3O7·H2O)、十三氧化六钒(V6O13)、二氧化钒(VO2)、三氧化二钒(V2O3)及一些特殊的钒基材料等催化高氯酸氨(ammonium perchlorate,AP)的研究进展,分析了不同钒基化物对AP催化效果的影响,得出钒基材料在催化AP上表现出良好的催化性能。通过对钒氧化物和碳包覆钒氧化物(如碳包覆V3O7·H2O,简写V7O7·H2O@C)对AP催化性能的影响分析,得出通过碳包覆能够大大提高其对AP的催化性能。介绍了钒基材料对AP的催化机理,钒原子中的3d轨道可在电子转移过程中提供帮助,钒原子中的空穴可得到来自AP离子和其中间产物的电子,从而加速AP的热分解。
The recent advances on catalysing ammonium perchlorate(AP)of vanadium-based materials were introduced,including vanadium pentoxide(V2O5),hydrated vanadium hepta-oxide(V2O7·H2O),hexa-vanadium oxide(V6O13),vanadium dioxide(VO2),vanadium trioxide(V2O3)and some special vanadium-based materials.The influence of different vanadium-based compounds on the catalytic AP was analyzed,and it is concluded that the vanadium-based materials showed good catalytic performance on the deposition of AP.Through analysis of the influence of vanadium oxide and carbon-coated vanadium oxide(such as carbon-coated V3O7·H2 O,abbreviated as V3O7·H2O@C)on the catalytic AP performance,it is concluded that the coating can greatly improve its catalysis performance to AP.The catalytic mechanism of vanadium-based materials on AP was introduced.The 3 d orbitals in vanadium atoms can provide assistance in the electron transfer process.The holes in vanadium atoms can obtain electrons from AP ions and intermediate products,thereby accelerating the thermal decomposition process of AP.
作者
张依福
黄驰
ZHANG Yifu;HUANG Chi(School of Chemical Engineering,Dalian University of Technology,Dalian 116024,China;College of Chemistry and Molecular Sciences,Wuhan University,Wuhan 430072,China;Hubei Military-Civilian Integration and Co lnnovation Center of Aerospace Propulsion and Materials Technology,Wuhan 430072,China)
出处
《武汉大学学报（工学版）》
CAS
CSCD
北大核心
2021年第2期108-115,共8页
Engineering Journal of Wuhan University
关键词
钒氧化物
高氯酸氨
催化
分解温度
vanadium oxide
ammonium perchlorate
catalysis
decomposition temperature
