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Controllable synthesis of three-dimensional branched gold nanocrystals assisted by cationic surfactant poly(diallyldimethylammonium) chloride in acidic aqueous solution
Zhang, Haibin; Lu, Yonggang; Liu, Hong; Fang, Jingzhong
Source PublicationRSC ADVANCES
Volume4Issue:69Pages:36757-36764
2014
Language英语
Indexed BySCI
WOS IDWOS:000341363200049
SubtypeArticle
AbstractAn effective strategy for the controllable synthesis of single crystalline branched gold nanocrystals with a three-dimensional hierarchical structure was realized via the reduction of tetrachloroaurate ions (AuCl4-) assisted by the cationic surfactant poly(diallyldimethylammonium) chloride (PDDA) in acidic aqueous solution. The as-prepared gold nanostructures consisting of main trunks and almost symmetrical side branches presented a [111] plane and growth along the < 331 > direction. The PDDA and weak reducing agent, ascorbic acid (AA), were indispensable for the formation of these unique gold nanocrystals. The effects of HAuCl4 (or PDDA) concentrations, pH values and reaction temperatures on the morphology of branched gold nanocrystals are discussed in our work. A possible three-staged formation mechanism of initial branched nucleation, subsequent branched nanostructure growth and the final morphology adjustment was proposed on the basis of different reaction times and the corresponding changes in surface plasmon absorption. It is expected that the specific branched gold nanocrystals may find potential applications such as in optoelectronics, surface enhanced Raman scattering (SERS) and surface plasmonics.
WOS KeywordMORPHOLOGY CONTROL ; OPTICAL-PROPERTIES ; NANORODS ; NANOSTRUCTURES ; NANOPARTICLES ; GROWTH ; SHAPES ; LENGTH ; SERS
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ioe.ac.cn/handle/181551/2455
Collection光电技术研究所被WoS收录文章
AffiliationChinese Acad Sci, Inst Opt & Elect, Lightweight Opt & Adv Mat Ctr, Chengdu 610209, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Haibin,Lu, Yonggang,Liu, Hong,et al. Controllable synthesis of three-dimensional branched gold nanocrystals assisted by cationic surfactant poly(diallyldimethylammonium) chloride in acidic aqueous solution[J]. RSC ADVANCES,2014,4(69):36757-36764.
APA Zhang, Haibin,Lu, Yonggang,Liu, Hong,&Fang, Jingzhong.(2014).Controllable synthesis of three-dimensional branched gold nanocrystals assisted by cationic surfactant poly(diallyldimethylammonium) chloride in acidic aqueous solution.RSC ADVANCES,4(69),36757-36764.
MLA Zhang, Haibin,et al."Controllable synthesis of three-dimensional branched gold nanocrystals assisted by cationic surfactant poly(diallyldimethylammonium) chloride in acidic aqueous solution".RSC ADVANCES 4.69(2014):36757-36764.
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