钙钛矿型复合氧化物LaMnO_(3.00)的快速制备与表征Combustion Synthesis and Characterization of Perovskite Oxide LaMnO_(3.00)
赵静,颜其洁
摘要(Abstract):
采用爆炸法(FlashCombustionMethod)制备了钙钛矿型LaMnO3.00复合氧化物催化剂。利用XRD,TEM,FT IR,BET比表面测试等表征手段,考察了制备条件对复合氧化物微粒的形成、结构和表面积的影响。结果表明:用于发生爆炸反应的尿素含量及溶液pH值对反应影响很大,离子浓度对反应影响较小。
关键词(KeyWords): 钙钛矿;复合氧化物;爆炸法;LaMnO3.00
基金项目(Foundation):
作者(Author): 赵静,颜其洁
参考文献(References):
- [1] YungfangYuYao. TheoxidationofhydrocarbonsandCOovermetaloxides[J].J.Catal.,1975,36:266.
- [2] WatsonPR,SmorjaiGA. Theformationofoxygen containingorganicmoleculesbythehydrogenationofcarbonmonoxideusingalanthanumrhodatecatalyst[J].J.Catal.,1982,74:282.
- [3] TasconJMD,MendiorozS,TejucaLG. Preparation,characterizationandcatalyticpropertiesofLaMeO3oxides[J].J.Phys.Chem.,1981,124:109.
- [4] MarcillyC,CourtyP,DelmonB. Preparationofhighlydispersedmixedoxidesandoxidesolidsolutionsbypyrolysisofamorphousorganicprecursors[J].J.Am.Cer.Soc.,1970,53(1):56.
- [5] JohnsonDW,GallagherPK,SchnettlerFJ,etal. Novelpreparativetechniquesforsupportedoxidecatalyst[J].Am.Cer.Soc.Bull.,1977,56(9):785.
- [6] KingsleyJJ,PatilKC. Anovelcombustionprocessforthesynthesisoffineparticleα aluminaandrelatedoxidematerials[J].Mater.Lett.,1988,6(11,12):427.
- [7] KingsleyJJ,SureshK,PatilKC. Combustionsynthesisoffine particlemetalaluminates[J].J.MaterialsScience,1990,25:1305.
- [8] JainSR,AdigaKC,PaiVernekarVR. Thermochemistryandlowercombustionlimitofammoniumperchlorateinpresenceofmethylammoniumperchlorates[J].CombustFlame,1981,40:71.
- [9] 赵 静,颜其洁,张 鎏. 纳米钙钛矿LaMnO3.15的制备与表征[J].南京大学学报,1997,4:247.
- [10] 易宪武,等. 无机化学丛书第七卷"钪稀土元素"[M].北京:科学技术出版社,1992.272