Stepwise synthesis of cuprous oxide nanopartides with adjustable structures and growth model
文献类型：期刊论文
| 作者 | Yang AiLing1; Wang YuJin1; Li ShunPin1; Bao XiChang2; Yang RenQiang2
|
| 刊名 | SCIENCE CHINA-TECHNOLOGICAL SCIENCES
 |
| 出版日期 | 2014-11-01 |
| 卷号 | 57期号:11页码:2287-2294 |
| 关键词 | cuprous oxide nano hollow spheres stepwise synthesis sodium hydrate inside-outside growth model |
| 英文摘要 | 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. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Multidisciplinary ; Materials Science, Multidisciplinary |
| 研究领域[WOS] | Engineering ; Materials Science |
| 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记录号 | WOS:000345484100023 |
| 公开日期 | 2015-12-24 |
| 源URL | [http://ir.qibebt.ac.cn/handle/337004/6273]  |
| 专题 | 青岛生物能源与过程研究所_先进有机功能材料团队 |
| 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. |
入库方式： OAI收割
来源：青岛生物能源与过程研究所
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