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Synthesis, characterization and mechanism of cetyltrimethylammonium bromide bilayer-encapsulated gold nanosheets and nanocrystals
Wang, Zhijuan1,2,3; Yuan, Junhua1,2; Zhou, Min1,2; Niu, Li1,2,3; Ivaska, Ari3
Corresponding AuthorNiu, Li(lniu@ciac.jl.cn)
2008-08-15
Source PublicationAPPLIED SURFACE SCIENCE
ISSN0169-4332
Volume254Issue:20Pages:6289-6293
AbstractSingle-crystal Au nanosheets and fcc gold nanocrystals of uniform size were synthesized by a novel and simple route. The results of field-emission scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray diffraction (XRD) indicated the formation of the single-crystal structure of gold nanosheets and fcc nanocrystals. Energy-dispersive analysis of X-ray (EDAX) showed absorbance of cetyltrimethylammonium bromide (CTAB) molecules onto the surface of gold nanostructures. Moreover, zeta potential measurements showed that CTAB-coated nanostructures were positively charged and the zeta potential remained almost the same upon centrifugation and redispersion of the resulting nanostructures in methanol, confirming the high stability of the surfactant-protected nanocomposites. Evolution of the nanostructures during the reaction was monitored by TEM observations. The results indicated that the formation of the gold nanostructures followed a two-step mechanism with a bilayer CTAB structure on the surface of the gold nanostructures. (c) 2008 Elsevier B. V. All rights reserved.
Keywordcetyltrimethylammonium bromide (CTAB) gold nanosheets gold nanocrystals
DOI10.1016/j.apsusc.2008.02.080
Indexed BySCI
Language英语
WOS Research AreaChemistry ; Materials Science ; Physics
WOS SubjectChemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter
WOS IDWOS:000257950100001
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:18[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/92589
Collection中国科学院金属研究所
Corresponding AuthorNiu, Li
Affiliation1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Electroanalyt Chem, Changchun 130022, Peoples R China
2.Chinese Acad Sci, Grad Sch Chinese Acad Sci, Changchun 130022, Peoples R China
3.Abo Akad Univ, Analyt Chem Lab, Proc Chem Ctr, FI-20500 Turku, Finland
Recommended Citation
GB/T 7714
Wang, Zhijuan,Yuan, Junhua,Zhou, Min,et al. Synthesis, characterization and mechanism of cetyltrimethylammonium bromide bilayer-encapsulated gold nanosheets and nanocrystals[J]. APPLIED SURFACE SCIENCE,2008,254(20):6289-6293.
APA Wang, Zhijuan,Yuan, Junhua,Zhou, Min,Niu, Li,&Ivaska, Ari.(2008).Synthesis, characterization and mechanism of cetyltrimethylammonium bromide bilayer-encapsulated gold nanosheets and nanocrystals.APPLIED SURFACE SCIENCE,254(20),6289-6293.
MLA Wang, Zhijuan,et al."Synthesis, characterization and mechanism of cetyltrimethylammonium bromide bilayer-encapsulated gold nanosheets and nanocrystals".APPLIED SURFACE SCIENCE 254.20(2008):6289-6293.
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