| In situ SAXS study on size changes of platinum nanoparticles with temperature |
| Wang W(王维); Chen X(陈曦); Cai Q(蔡泉) ; Mo G(默广); Jiang LS(江隆盛); Zhang K(张凯); Chen ZJ(陈中军); Wu ZH(吴忠华); Wang, W; Chen, X; Cai, Q; Mo, G; Jiang, LS; Zhang, K; Chen, ZJ; Wu, ZH; Pan, W
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| 2008
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| 发表期刊 | EUROPEAN PHYSICAL JOURNAL B
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| 卷号 | 65期号:1页码:#REF! |
| 通讯作者 | Wang, W (reprint author), Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Facil, Beijing 100049, Peoples R China.
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| 摘要 | Poly(vinylpyrrolidone) (PVP)-coated platinum (Pt) nanoparticles were prepared in methanol-water reduction method. In situ small-angle X-ray scattering (SAXS) and X-ray diffraction (XRD) techniques were used to probe the size change of particles and crystallites with temperature. Tangent-by-tangent (TBT) method of SAXS data analysis was improved and used to get the particle size distribution (PSD) from SAXS intensity. Scherrer's equation was used to derive the crystallite size from XRD pattern. Combining SAXS and XRD results, a step-like characteristic of the Pt nanoparticle growth has been found. Three stages (diffusion, aggregation, and agglomeration) can be used to describe the growth of the Pt nanoparticles and nanocrystallites. Aggregation was found to be the main growth mode of the Pt nanoparticles during heating. The maximum growth rates of Pt nanoparticles and Pt nanocrystallites, as well as the maximum aggregation degree of Pt nanocrystallites were found, respectively, at 250 degrees C, 350 degrees C and 300 degrees C. These results are helpful to understanding the growth mode of nanoparticles, as well as controlling the nanoparticle size. |
| 文章类型 | Article
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| 学科领域 | Physics
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| DOI | 10.1140/epjb/e2008-00322-7
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| 收录类别 | SCI
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| WOS类目 | Physics, Condensed Matter
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| WOS记录号 | WOS:000259580400007
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://ir.ihep.ac.cn/handle/311005/225808
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| 专题 | 多学科研究中心
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推荐引用方式
GB/T 7714 |
Wang W,Chen X,Cai Q,et al. In situ SAXS study on size changes of platinum nanoparticles with temperature[J]. EUROPEAN PHYSICAL JOURNAL B,2008,65(1):#REF!.
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| APA |
王维.,陈曦.,蔡泉.,默广.,江隆盛.,...&Pan, W.(2008).In situ SAXS study on size changes of platinum nanoparticles with temperature.EUROPEAN PHYSICAL JOURNAL B,65(1),#REF!.
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| MLA |
王维,et al."In situ SAXS study on size changes of platinum nanoparticles with temperature".EUROPEAN PHYSICAL JOURNAL B 65.1(2008):#REF!.
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