种子生长法合成金纳米棒综述总结_精品文档PPT资料.pptx

1、A Review of Au NanorodsLIU Chang（YNU）October 27th,20182The result of searching“Au nanorods”on Web of ScienceWeb of Science:#Not exact but impressive！#NameInstituteSupervisorCatherine J.MurphyUniversity of Illinois at Urbana-Champaign 伊利诺伊大学香槟分校（美国）Nikhil R.JanaHaldia Institute of Technologyia 霍尔迪亚理工

2、学院（印度）Catherine J.MurphyPaul MulvaneyThe University of Melbourne 墨尔本大学（澳大利亚）Jorge Prez-JusteThe University of Melbourne 墨尔本大学（澳大利亚）Paul MulvaneyMostafa A.El-sayedGeorgia Institute of Technology 佐治亚理工学院（美国）Babak NikoobakhtNational Institute of Standards and Technology 美国国家标准与技术研究院Mostafa A.El-sayed34

3、1.Au NRs Plasmonics5（郑州大学朱笑天20172017年硕士学位论文）LSPR:#Local Surface Plasmonic Resonance520 nmHistory:#Hard Template Method Hard Template Method Soft Template Method Soft Template Method Seed Growth Method Seed Growth Method 2.Synthesis of Au NRs6（100nm100-200m）（12nm60nm）（various）ProblemsProblems:#Energy

4、 Intensive Difficult to Scale Hard to ShapeSince 20012001 by N.R.Jana7Hard Template Method8Seed Growth Method（3-Step）910113.Machanism of Au NR GrowthFor 3-step seed growth method,For 3-step seed growth method,（A）CTAB is a capping agent rather than soft template;#（B）Au（I）prefers to add at the tips du

5、e to a prevailing electric field effect.Adv.Funct.Mater.2004,14,5719 J.Phys.Chem.B.2005,109,138577012For Ag assistant growth method,For Ag assistant growth method,Contradiction?#13In situ In situ characterizingcharacterizingTimeresolved UVvis absorbance spectroscopySmall angle X-ray scattering（SAXS）X-ray absorption spectroscopy（XANES）Liquid cell TEM,cryo-TEM,AFMThe Aun+depletion rate is very sensitive to pH near the pKa of AA;#Ag+prevents Au NR from overgrowing;#The reduction of Au happens on the surface of Au NR;#14Thanks!#