FeS_2微粉的水热合成及晶体结构研究Preparation of Pyrite Powder by Hydrothermal Process
吴荣,郑毓峰,张校刚,孙言飞,徐金宝,姜海涛
摘要(Abstract)：
利用水热法一步合成了黄铁矿型Fe S2 (Pyrite)多晶粉体.样品的X射线衍射线和Rietvild结构精修表明,所得样品具有AB2 型立方结构,空间群Pa3,晶格常数a=5 .41 5 1 ,Wyckoff参量u=0 .3 868,结合水热生长模式分析了晶体的生长过程.
关键词(KeyWords)： FeS2(Pyrite);水热法;Rietveld方法
基金项目(Foundation): 国家自然科学基金 (5 0 0 62 0 0 2 )资助项目
作者(Author): 吴荣,郑毓峰,张校刚,孙言飞,徐金宝,姜海涛
参考文献(References)：
- [1]RaturiA K,WaitaS,AdudaB,NyangondaT.Photoactive iron pyrite films for photoelectrochemical(PEC) cells[J].RenewableEnergy,1999,20:37-43.
- [2]De lasHerasC,FerrerI J,SánchezC.Pyrite thin films:Improvements in their optical and electrical properties byannealing atdifferenttemperatures in a sulfur atmosphere[J].JApplPhys,1993,74(7):4551-4556.
- [3]TsqyM Y,HuangY S.Photoconduction of synthetic phriteFeS2 single crystals[J].JApplPhys,1993,74(4):2786-2789.
- [4]丁子上.硅酸盐物理化学[M].北京:中国建筑工业出版社,1980,55.
- [5]SigeyukiNakamura,AkioYamamoto.Electrodeposition of pyrite(FeS2) thin films for photovoltaic cells[J].SolarEnergyMaterials andSolarCells,2001,65:79-85.
- [6]ThomasB,CibikB,etal.Formation of secondary iron-sulphurphases during the growth of polycrystalline iron pyrite(FeS2) thin films byMOCVD[J].JMaterials science:Materials inElectronics,1998,9:61-64.
- [7]C de lasHeras,JL Martin deVidales.Structural and microstructural features of pyriteFeS2-x thin films obtained bythermal sulfuration of iron[J],JMaterRes,1996,11:211.
- [8]FerrerIJ,ScanchezC.Characterization ofFeS2 thin films prepared by thermal sulfidation of flash evaporated iron[J],JApplPhys,1991,70:2641-2647.
- [9]BernerR A.The synthesis of framboidal pyrite[J].EconGeol,1969,64:383.
- [10]BernerR A.Iron sulfides formed from aqueous solution at low temperatures and atmospheric pressure[J].JGeol,1964,72:293.
- [11]BernerR A.Thermodynamic stability of sedimentary iron sulfides[J].AmJSci,1967,265:773.
- [12]BernerR A.Sedimentary pyrite formation[J].AmJSci,1970,268:1.
- [13]LutherG W III.Pyrite synthesis via polysulfide compounds[J].GeochimCosmochimActa,1991,53:2839.
- [14]SchoonerM A A,BarnesH J.Reactions forming pyrite and marcasite from solution:I.Nucleation ofFeS below100℃[J].GeochimCosmochimActa,1991,55:1495.
- [15]TaylorP,RummeryT E,OwenD C.Reactions of iron monosulfide solids with aqueous hydrogen sulfide up to160℃[J].JInorgNuclChem,1979,41:1683-1687