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时间:2020-03-27
《纳米银粒子在氨基注入氧化铟锡玻璃基体表面的高密度吸附.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、物理化学学~(WuliHuaxueXuebao)NovemberActaP.一Chim.Sin.2011,27(11),2671-26762671[Article]www.whxb.pku.edu.cn纳米银粒子在氨基注入氧化铟锡玻璃基体表面的高密度吸附李硕琦刘璐。田辉风胡劲波·(北京师范大学射线束技术与材料改性教育部重点实验室,北京100875;北京师范大学化学学院,北京100875;北京大学化学与分子工程学院,北京100871)摘要:研究了纳米~(AgNPs)在氨基注入氧化铟锡(ITO)薄膜表面的吸附.通过氨基注入的方法得到了氨基功能化的ITO表面(NHJITO
2、),并将纳米银直接吸附在NH2/ITO上得到纳米银修饰NH/ITO基体(AgNPs/NH,ITO).使用傅里叶红外光谱、X射线光电子能谱、原子力显微镜、扫描电镜、紫外可见光谱和电化学方法对AgNPs/NH/ITO制备过程进行了表征.结果显示纳米银可在NHz/ITO表面高密度地吸附,并且纳米银有良好的电化学活性.这种不借助于有机连接分子吸附纳米银的方法为制备纳米银修饰材料提供了新的选择.关键词:离子注入:组装:纳米银:氧化铟锡中图分类号:0647HighDensityAttachmentofSilverNanopartlcIesontoanNH;IonImplante
3、dIndiumTinOxideGlassSubstrateLIShuo—QiLIULu。TIANHui—FengHUJing-Bo’ll(KeyLaboratoryofBeamTechnologyandMaterialModifcationofMinistryofEducation,BeijingNormalUniversity,Beijing100875,PR.China;CollegeofChemistry,BeijingNormalUniversity,Beijing100875,PR.China;’CollegeofChemistryandMolecular
4、Engineering,PekingUniversity,Beijing100871,PR.China)Abstract:Aneffectiveapproachtoattachsilvernanoparticles(AgNPs)directlyontoanjndiumtinoxide(ITO)surfacewithhighdensitywasreported.AnNH;ionimplantedITO(NHdlTO)f¨mwaspreparedandlheAgNPswereadsorbedontothesurfaceoftheobtainedNHJITOf¨mresu
5、ltinginanAflNPs.attachedNH2/ITO(AgNPs/NH2/ITO)substrate.CharacterizationofstepwisechangesintheITO,NH2/ITO,andAgNPs/NHJITOsurfaceswerecarriedoutusingFouriertransforminfrared(FT-lR)spectrometry,X.rayphotoelectronspectroscopy(XPS),atomicforcemicroscopy(AFM),scanningelectronmicroscopy(SEM)
6、,ultraviolet—visible(UV-Vis)spectroscopy,andelectrochemicaImethods.CyclicvoltammtricvoltammetryresultsindicatethattheimmobilizedAgNPsontheNHdlTOelectrodegaveexcellentelectrochemicalproperties.implyingfacileelectrochemicalcommunicationbetweentheAgNPsandtheITOsubstratethroughthebyimplant
7、edaminogroups.Thus,theAgNPs/NH2/ITOsurfacesarepromisingasnewfunctionalinterfacesbecauseAgNPscanbeattachedtoSUrfaceswithouttheuseoforganicbindingmolecules.KeyWords:Ionimplantation;Assembly;Silvernanoparticle;Indiumtinoxide1lntroductiOntosurfaceandmicroscaleefectsandlOWelectron.transfe
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