硅酸盐学报

氧化铟纳米粉体的微乳液合成及其气敏特性

作者：徐甲强李惠萍沈嘉年陈玉萍

单位：上海大学材料研究所郑州大学化工学院上海大学材料研究所郑州轻工业学院材料与化工学院上海200072郑州轻工业学院材料与化工学院郑州450002 郑州450002 上海200072 郑州450002

分类号：TB383

出版年,卷(期):页码：2005,33(7):832-836

DOI：

摘要：

用微乳液法合成了纳米In2O3粉体,浸渍法制备了5%(inmass)La2O3掺杂In2O3。利用X射线衍射、透射电镜对合成产物进行了结构表征。采用静态配气法对氧化铟气敏元件的气敏特性进行了测试。结果表明:微乳液法合成的氧化铟经600℃,5h煅烧后,颗粒尺寸约为30nm,且分布均匀。氧化铟气敏元件对汽油、酒精、甲醛等有机蒸气具有较高的检测灵敏度,但选择性不好。氧化镧掺杂后,不同温度工作时,氧化铟分别对汽油、酒精有较好的选择性,且响应恢复快。

Indium oxide nanopowder doped with 5%(in mass) La_(2)O_(3) was prepared by an impregnation method and using In_2O_3 obtained by a microemulsion technique. The structure and morphology of the powder product were characterized by X-ray diffraction and transmission electron microscopy, respectively. Gas sensing properties of In_2O_3 samples were measured by a gas match method at the static state. The results show that the homogeneous indium oxide nanopowder sintering at 600 ℃ were obtained by sintering at 600 ℃ and its particle size is about 30 nm. Pure indium oxide gas sensor has higher sensitivity to alcohol, gasoline and HCHO, but it has poor gas selectivity. At different working temperatures, La_(2)O_(3) doped indium oxide sensor can selectively detect alcohol and gasoline with satisfactory gas sensitivity and quick response and recovery characteristics.

基金项目：

国家自然科学基金(20471055);; 河南省杰出青年科学基金(03120000800)资助项目。

作者简介：

参考文献：

[1]徐甲强,张全法,范福玲编著.传感器技术[M].哈尔滨:哈尔滨工业大学出版社,2004,92—104.XUJiaqiang,ZHANGQuanfa,FANFuling,etal.Sensor Technology[M](2).Harbin:PublicationofHarbininstitute ofTechnology,2004.92—104. [2]XIROUCHAKIC,MOSECHORISK,CHATZITHEODO RIDISE,etal.Chemicalcharacterizationofas depositedmi crocrystallineindiumfilmspreparedbyreactivedcmagnetron sputtering[J].ApplPhysA,1998,67:295—301. [3]KIMH,HORWITZJS,PIQUEA,etal.Electricalandop ticalpropertiesofindiumtinoxidethinfilmgrownbypulsed laserdeposition[J].ApplPhysA,1999,69(suppl):447—450. [4]PENZAM,COZZIS,TAGLIENTEMA.Characterization oftransparentandconductiveelectrodesofindiumtinoxide filmsbysequentialreactiveevaporation[J].ThinSolidFilm,1999,349:71—75. [5]KIMSS,CHOISYS,PARKCG,etal.Transparentcon ductiveITOthinfilmsthroughthesolgelprocessusing metalsalts[J].ThinSolidFilm,1999,347:155—158. [6]CHOYKL.Chemicalvapourdepositionofcoating[J].Prog MaterSci,2003,48:57—170. [7]李艳峰,张俊.In2O3热线型气敏元件研究[J].郑州轻工业学院学报,2000,15(4):59—61.LIYanfeng,ZHANGJun.JZhengzhouInsLightInd(in Chinese),2000,15(4):59—61. [8]TAKADAT.Highlysensitiveozonesensor[J].SensActua tors,1993,B(1314):404—407. [9]HATTORIAK.Ozonesensormadebydipcoatingmethod[J].SensActuators,1999,77:120—125. [10]MAROTTAV,ORLANDOS,PARISIGP,etal.Indium andtinoxidepolycrystallinethinfilmasNOgassensorspro ducedbyreactivepulsedlaserablationanddeposition[J].ApplPhysA,1999,69(suppl):675—677. [11]STEFFESH.EnhancementofNO2sensingpropertiesofIn2O3basedthinfilmsusinganAuorTisurfacemodification[J].SensActuators,2001,B78:106—112. [12]CHUNGWan Young.Gas sensingpropertiesofspin coated indiumoxidefilmonvarioussubstrates[J].JMaterSci,2001(12):591—596. [13]BELYSHEVATV,KAZACHKOVEA,GUTMANEE.GassensingpropertiesofIn2O3andAu dopedIn2O3filmsfor detectingCOinair[J].JAnalChem,2001,56(7):676—678. [14]程知萱,潘庆谊,王廷富,等.溶胶凝胶法制备的纳米In2O3气敏性能研究[J].郑州轻工业学院学报,2002,17(4):3—5.CHENGZhixuan,PANQingyi,WANGYanfu,etal.J ZhengzhouInsLightInd(inChinese),2002,17(4):3—5. [15]MALYSHEVVV,PISLYAKOVAV,KRESNIKOVIF,etal.Sensitivityofsemiconductorgassensorstohydrogen andinertgasatmosphere[J].JAnalChem,2001,56(9):864—870. [16]徐甲强,吕彦力,慈龙健,等.贵金属催化剂对氧化铟气敏特性的影响[J].功能材料,1998,29(增):627—630.XUJiaqiang,L Yanli,CILongjian,etal.JFunctMater(in Chinese).1998,29(suppl):627—630. [17]全宝富,刘凤敏,李爱武,等.Solgel法制备低阻In2O3膜[J].功能材料,2001,32(4):407—409.QUANBaofu,LIUFengmin,LIAiwu,etal.JFunctMater(inChinese),2001,32(4):407—409. [18]葛秀涛,刘杏芹.αFe2O3掺杂对In2O3电导和气敏性能的影响[J].物理化学学报,2001,17(10):887—891.GEXiutao,LIUXingqin.ChinJPhysChem(inChinese).2001,17(10):887—891. [19]李晶,陈世柱.纳米In2O3的制备与结构表征[J].中国粉体技术,2003,9(1):33—35.LIJing,CHENShizhu.ChinaPowderSciTechnol(inChi nese),2003,9(1):33—35. [20]全宝富,赵志勇,张彤,等.In2O3纳米材料的制备及其气敏特性研究[J].仪表技术与传感器,2001,1:12—14.QUANBaofu,ZHAOZhiyong,ZHANGTong,etal.InstruTechSens(inChinese),2001,1:12—14. [21]徐甲强,刘艳丽,牛新书.室温固相合成In2O3及其气敏特性研究[J].无机材料学报,2002,17(2):367—340.XUJiaqiang,LIUYanli,NIUXinshu,JInorgMater(inChi nese),2002,17(2):367—340. [22]徐甲强,潘庆谊,孙雨安,等。纳米氧化锌的乳液合成、结构表征与气敏性能[J].无机化学学报,1998,13(3):355—359.XUJiaqiang,PANqingyi,SUNYuan,etal.JInorgChem(inChinese),1998,13(3):355—359. [23]潘庆谊,徐甲强,刘宏民,等.微乳液法纳米氧化锡的合成、结构与气敏性能[J].无机材料学报,1999,14(1):83—89.PANQingyi,XUJiaqiang,LIUHongmin,etal.JInorgMa ter(inChinese),1999,14(1):83—89. [24]徐甲强,沈瑜生.超微粒αFe2O3气敏机理初探[J].无机材料学报,1992,17(1):32—36.XUJiaqiang,SHENYusheng.JInorgMater(inChinese),1992,17(1):32—36.

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