| Influence of Capping Ligands on the Self—organization of Gold Nanoparticles into Superlattices from CTAB Reverse Micelles |
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| 引用本文： | LIN，Jun ZHOU，Wei－Lie 等. Influence of Capping Ligands on the Self—organization of Gold Nanoparticles into Superlattices from CTAB Reverse Micelles[J]. 中国化学, 2002, 20(2): 127-134. DOI: 10.1002/cjoc.20020200204 |
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| 作者姓名： | LIN，Jun ZHOU，Wei－Lie 等 |
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| 作者单位： | [1]KeyLaboratoryofRareEarthChemistryandPhysics,ChangchunInstituteofAppliedChemistry,ChineseAcademyofSciences,Changchun,Jilin130022,China [2]AdvancedMaterialsResearchInstitute,CollegeofS |
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| 基金项目： | theAdvancedMaterialsResearchInstituteatUniversityofNewOrleansthroughDefenseAdvancedResearchPro jectsAgency (No .MDA972 97 1 0 0 0 3)，theHundred PersonProjectofChineseAcademyofSciences |
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| 摘 要： | Gold nanoparticles with size 3-10nm (diameter) were prepared by the reduction of HAuCl4 in a CTAB/octane 1-butanol/H2O reverse micelle system using NaBH4 as the reducing agent.The as-formed gold nanoparticle colloid was characterized by UV/vis absorption spectrum and transmission electron microscopy(TEM).Various capping ligands,such as alkylthiols with different chain length and shape,trioctylphosphine(TOP),and pyridine are used to passivate the gold nanoparticles for the purpose of self-organization into superstructures.It is shown that the ligands have a great influence on the selforganization of gold nanoparticles into superlattices,and dodecanethiol C12H25SH is confirmed to be the best ligand for the self-organization.Self-organization of C12H25SH-capped gold nanoparticles into 1D,2D and 3D supperlattices has been observed on the carbon-coated copper grid by TEM without using any selective precipitation process.
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| 关 键 词： | 纳米材料 金 超结晶格子 纳米颗粒 相反胶束 超点阵 配位基 |
Influence of Capping Ligands on the Self-organization of Gold Nanoparticles into Superlattices from CTAB Reverse Micelles |
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| Jun Lin,Wei‐Lie Zhou,Carpenter Everett,Charles O'Connor. Influence of Capping Ligands on the Self-organization of Gold Nanoparticles into Superlattices from CTAB Reverse Micelles[J]. Chinese Journal of Chemistry, 2002, 20(2): 127-134. DOI: 10.1002/cjoc.20020200204 |
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| Authors: | Jun Lin Wei‐Lie Zhou Carpenter Everett Charles O'Connor |
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| Affiliation: | LIN,Jun ZHOU,Wei Lie CARPENTER,Everett b O'CONNOR,Charles b a? Key Laboratory of Rare Earth Chemistry and Physics,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun,Jilin 130022,China b |
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| Abstract: | Gold nanoparticles with size 3-10 nm (diameter) were prepared by the reduction of HAuCl 4 in a CTAB/octane + 1 butanol/H 2O reverse micelle system using NaBH 4 as the reducing agent. The as formed gold nanoparticle colloid was characterized by UV/vis absorption spectrum and transmission electron microscopy(TEM). Various capping ligands, such as alkyl thiols with different chain length and shape, trioctylphosphine (TOP), and pyridine are used to passivate the gold nanoparticles for the purpose of self organization into superstructures. It is shown that the ligands have a great influence on the self organization of gold nanoparticles into superlattices, and dodecanethiol C 12 H 25 SH is confirmed to be the best ligand for the self organization. Self organization of C 12 H 25 SH capped gold nanoparticles into 1D, 2D and 3D superlattices has been observed on the carbon coated copper grid by TEM without using any selective precipitation process. |
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| Keywords: | gold nanoparticle self organization capping ligands reverse micelles |
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