Stepwise synthesis of cuprous oxide nanopartides with adjustable structures and growth model

doi:10.1007/s11431-014-5658-2

QIBEBT-IR > 先进有机功能材料研究组

	Stepwise synthesis of cuprous oxide nanopartides with adjustable structures and growth model
	Yang AiLing 1; Wang YuJin 1; Li ShunPin 1; Bao XiChang 2; Yang RenQiang 2
	2014-11-01
发表期刊	SCIENCE CHINA-TECHNOLOGICAL SCIENCES
卷号	57 期号:11 页码:2287-2294
摘要	By stepwise adding of reducer N2H4 center dot H2O, cuprous oxide (Cu2O) nanoparticles (NPs) with adjustable structures were synthesized. The features of Cu2O NPs were characterized by XRD, TEM and UV-Vis absorption spectra. When the reducer was added into the reactant system at one time, the sizes of the Cu2O NPs are in the range of 120-140 nm. Most Cu2O NPs are solid spheres. As the reducer was divided into two equal parts and stepwisely added, almost all the NPs are hollow spheres with good size (150-170 nm) distribution and dispersity. But when the reducer was divided into three or four equal parts and stepwisely added, the NPs are hollow spheres, core-shell structures or solid spheres, and the sizes distribution of the products is deteriorated. The effect of sodium hydrate (NaOH) was also probed. Addition of NaOH speeded up the nucleation and growth processes of Cu2O NPs. With the alkalinity increase, the shells of the hollow spheres become compact and the thicknesses of the shells increase, but the size distribution of the NPs is deteriorated. The absorption spectra of the Cu2O NPs are tunable. With the shell thicknesses increase, the absorption peaks have red shifts. An inside-outside growth model of Cu2O NPs was proposed to explain the results. The Cu2O single crystalline grains grow not only in the reactant solution, but also inside of the hollow nanospheres. The new Cu2O nanocrystallines can not only aggregate onto the shells of the nano hollow spheres, but also inside and outside of the hollow spheres, which leads to increasing the shell thicknesses of the hollow spheres, forming core-shell structures or small solid spheres of Cu2O NPs, respectively.
文章类型	Article
关键词	Cuprous Oxide Nano Hollow Spheres Stepwise Synthesis Sodium Hydrate Inside-outside Growth Model
WOS标题词	Science & Technology ; Technology
DOI	10.1007/s11431-014-5658-2
关键词[WOS]	CORE-SHELL NANOPARTICLES ; SHAPE EVOLUTION ; CU2O ; COPPER ; NANOCRYSTALS ; PERFORMANCE ; BIOSENSOR ; OXYGEN ; FILMS
收录类别	SCI
语种	英语
WOS研究方向	Engineering ; Materials Science
WOS类目	Engineering, Multidisciplinary ; Materials Science, Multidisciplinary
WOS记录号	WOS:000345484100023
引用统计
文献类型	期刊论文
条目标识符	http://ir.qibebt.ac.cn/handle/337004/6273
专题	先进有机功能材料研究组
作者单位	1.Ocean Univ China, Dept Phys, Qingdao 266100, Peoples R China 2.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China
推荐引用方式 GB/T 7714	Yang AiLing,Wang YuJin,Li ShunPin,et al. Stepwise synthesis of cuprous oxide nanopartides with adjustable structures and growth model[J]. SCIENCE CHINA-TECHNOLOGICAL SCIENCES,2014,57(11):2287-2294.
APA	Yang AiLing,Wang YuJin,Li ShunPin,Bao XiChang,&Yang RenQiang.(2014).Stepwise synthesis of cuprous oxide nanopartides with adjustable structures and growth model.SCIENCE CHINA-TECHNOLOGICAL SCIENCES,57(11),2287-2294.
MLA	Yang AiLing,et al."Stepwise synthesis of cuprous oxide nanopartides with adjustable structures and growth model".SCIENCE CHINA-TECHNOLOGICAL SCIENCES 57.11(2014):2287-2294.