几种掺杂纳米功能材料溶胶凝胶%2f水热合成法制备及的研究

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1、AbstractInmisthesis，wehavepreparednanocrystallinepowdersandnanowiresusingSol—Gelmethodandthehydrothermalmethod，andsystematicallystudiedtheeff’ectofelementsdopingonthecharacteristic，crystalstmcture，phononVibrationandmagnetismofperoVsl

2、ndtheTi02system．Chapter1：First，wegiVeareViewonthedeVelopmentofnanoscalematerials，and，someofitsspecialstmcturesandnature．ThenweintroducetheimproVementinmechan—ics，ca】ori￡cs，photjcs，electricsandmagnetisminnanoscalematerialstotraditionalmaterialS．W邑introd

3、ucedseveralmethodsofsynthesizingnanoscalematerials，especiallymeS01一Gelmethodandthehydromermalmethod，andthensummarizedseVeraIcharacterizatjonandanal—ysismethodsfornanoscalematerials．Chapter2：W宅haVesuccessfullysynthesizednanocrystallinesamplesoftheLal一zP

4、kCr03(x=O—O．6)withsol—gelmethod．Thestf．uctureofthenanocrystallinewasstudiedusingXRDandmicro—Ramanspectroscopy．TheXRDdataindicatedperoVshte—typecrystalstructurewaswelldevelopedafterannealedat650℃．Twobandsat151and173cm一1canbeassignedt0Laintemalvibrations

5、，andwithincreasingofdopedPr，thesetwobandsshifttohigherwaVe—length．Thebandof830cm一1forLaCr04isrepOrted，butitisnotconsistentwiththeXRDspectrum．TheZf’CsusceptibilityispositiVef曲m7Kto300Kwithtwomaximum，butTheFCsusceptibilityisnegativebelowonecenaintemperat

6、urebecauseOfthecompetitionbetweenHIandHa．Chapter3：WehaVesuccessfullypreparedCo厂n02nanopaniclesandnanowireswithsol—gelassociatedwithhVdrothenIlalmethod．ThestructureofthenanoparticlesandnanowireswasstudiedusingXRDandmicro—Ramanspectroscopy．TheXRDdataindi

7、catedtheanatasecrystalstructurewithoutanyimpurephaseandCoclusterforthesamples．ThedistributionofnanopaniclesandnanowireSisunifo肌．RTFMisobserVedduetointeractionbetweenthedopantmetalionsandoxygenVacanciesinducedbyhydrogenation．中国科学技术大学学位论文相关声明本人声明所呈交的学位论文

8、，是本人在导师指导下进行研究工作所取得的成果。除己特别加以标注和致谢的地方外，论文中不包含任何他人已经发表或撰写过的研究成果。与我一同工作的同志对本研究所做的贡献均已在论文中作了明确的说明。本人授权中国科学技术大学拥有学位论文的部分使用权，即：学校有权按有关规定向国家有关部门或机构送交论文的复印件和电子版，允许论文被查阅和借阅，可以将学位论文编入有关数据库进行检索，可以采用影印、缩印或扫描等复制手段保存、汇编学位论文。保密的学位论文在解密后也遵守此规定。作者签名：塑玉