Synthesis of Au-Ni Bimetallic Nanoparticles with Tunable Aspect Ratio

	Synthesis of Au-Ni Bimetallic Nanoparticles with Tunable Aspect Ratio
	Han Tianhao; Liang Fuxin; Yang Zhenzhong
刊名	CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
	2017-11-10
卷号	38 期号:11 页码:1921-1926
关键词	Bimetallic Nanoparticles Reaction Time Selectively Etching Morphology Control
英文摘要	In this paper, the Au-Ni bimetallic nanoparticles with tunable aspect ratio of Au to Ni were synthesized by noble. metal. induced. reduction strategy. Octadecylamine is reducible at high temperatures thus it was used as a reducing agent. As the temperature increased gradually, Au3+ was reduced by octadecylamine to form Au-0. After that, Ni2+ was reduced to Ni-0 by obtaining electrons from Au-0 at 220 degrees C. Octadecylamine provided electrons to Au3+ continuously during the reaction. The size of Ni side could be tunable by changing the reaction time at 220 degrees C. Au side and Ni side could be selectively etched with aqueous I-2/KI and 0 5%(mass fraction) aqueous HCl, respectively. The size of Au. Ni bimetallic nanoparticles could be tuned continuously by etching for varied time. Au side or Ni side could be completely etched separately, remaining Ni nanoparticles or Au nanoparticles. The fresh surface obtained after etching Au side or Ni side provided a site of chemical reaction for further compositing functional substances. This method is attractive owing to the easiness to continuously tuning aspect ratio of the bimetallic nanoparticles. On the other hand, composition of the bimetallic nanoparticles is also flexibly tunable using different reactants.
语种	英语
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/39112]
专题	化学研究所_高分子物理与化学实验室
作者单位	Chinese Acad Sci, Inst Chem, State Key Lab Polymer Phys & Chem, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Han Tianhao,Liang Fuxin,Yang Zhenzhong. Synthesis of Au-Ni Bimetallic Nanoparticles with Tunable Aspect Ratio[J]. CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,2017,38(11):1921-1926.
APA	Han Tianhao,Liang Fuxin,&Yang Zhenzhong.(2017).Synthesis of Au-Ni Bimetallic Nanoparticles with Tunable Aspect Ratio.CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,38(11),1921-1926.
MLA	Han Tianhao,et al."Synthesis of Au-Ni Bimetallic Nanoparticles with Tunable Aspect Ratio".CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE 38.11(2017):1921-1926.