Synthesis of Hollow Ag-Au Bimetallic Nanoparticles in Polyelectrolyte Multilayers

doi:10.1021/la400728k

CORC > 化学研究所 > 中国科学院化学研究所

	Synthesis of Hollow Ag-Au Bimetallic Nanoparticles in Polyelectrolyte Multilayers
	Zhang, Xin; Zhang, Guangyu; Zhang, Bodong; Su, Zhaohui
刊名	LANGMUIR
	2013-06-04
卷号	29 期号:22 页码:6722-6727
ISSN号	0743-7463
DOI	10.1021/la400728k
英文摘要	Ag nanoparticles of similar to 20 nm size and rather uniform size distribution were synthesized in polyelectrolyte multilayers (PEMs) via an ion-exchange/reduction process in two stages (seeding and growth), which were used as sacrificial templates to fabricate Ag-Au bimetallic hollow nanoparticles via galvanic replacement reaction. The reaction process was monitored by UV-vis spectroscopy. The morphology and structure of the nanoparticles were characterized by transmission electron microscopy (TEM) and energy dispersive Xray spectroscopy, which Confirmed the formation of hollow Ag-Au bimetallic nanoparticles. UV-vis absorbance spectroscopy and TEM results indicated that both Size and optical properties of the Ag nanoparticles in the PEM can be controlled by manipulating ion content in the PEM and the number of the ion-exchange/reduction cycle, whereas that of Ag-Au, bimetallic nanoparticles were dependent on size of the Ag templates and the replacement reaction kinetics. The hollow Ag-Au bimetallic nanoparticles exhibited a significant red shift in the surface plasmon resonance to the near-infrared region The strategy enables facile preparation of hollow bimetallic nanoparticles in situ in polymer Matrixes.
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000320097000026
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/46895]
专题	中国科学院化学研究所
通讯作者	Su, Zhaohui
作者单位	Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Xin,Zhang, Guangyu,Zhang, Bodong,et al. Synthesis of Hollow Ag-Au Bimetallic Nanoparticles in Polyelectrolyte Multilayers[J]. LANGMUIR,2013,29(22):6722-6727.
APA	Zhang, Xin,Zhang, Guangyu,Zhang, Bodong,&Su, Zhaohui.(2013).Synthesis of Hollow Ag-Au Bimetallic Nanoparticles in Polyelectrolyte Multilayers.LANGMUIR,29(22),6722-6727.
MLA	Zhang, Xin,et al."Synthesis of Hollow Ag-Au Bimetallic Nanoparticles in Polyelectrolyte Multilayers".LANGMUIR 29.22(2013):6722-6727.