| 后处理条件对Ru(核)-RuO2(壳) 纳米颗粒结构和形貌的影响 |
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| 引用本文： | 张博,贺泓,余运波.后处理条件对Ru(核)-RuO2(壳) 纳米颗粒结构和形貌的影响[J].科学通报,2009,54(19):2957-2961. |
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| 作者姓名： | 张博 贺泓 余运波 |
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| 作者单位： | 中国科学院生态环境研究中心; |
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| 基金项目： | 国家高技术研究发展计划(编号:2006AA06Z307);;中国科学院知识创新工程重大项目(编号:KZCX1-YW-06-04)资助 |
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| 摘 要： | 利用光电子能谱仪(XPS)、透射电子显微镜(TEM)、扫描电子显微镜(SEM)和能量色散谱(EDS)研究了后处理条件(不同酸度的洗液及基底)对电化学合成的Ru(核)-RuO2(壳) (RNCO)纳米颗粒的结构和形貌的影响. 结果发现, 直接用水洗的RNCO纳米颗粒会在铜基底上组装成线或棒, 而在单晶硅基底上没有发生明显的组装行为. 在稀盐酸洗涤过程中, RNCO的核壳结构被破坏, 并且各自发生聚集和生长, 当产物置于硅片上时, RNCO明显分离为RuO2膜和金属Ru颗粒; 当产物置于Cu片上时, Ru生长成为方形颗粒, RuO2颗粒黏附其上. 在浓盐酸中, RNCO的核壳发生化学反应生成新的钌氧化物相, 新物相以膜的形式铺展在硅片上, 而在Cu片上呈现角状结晶.
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| 关 键 词： | 钌 钌氧化物 纳米自组装 |
| 收稿时间： | 2009-03-06 |
The effect of post-treatment on the structure and morphology of Ru/RuO_2 core-shell nanoparticles |
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| ZHANG Bo,HE Hong & YU YunBo Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing ,China.The effect of post-treatment on the structure and morphology of Ru/RuO_2 core-shell nanoparticles[J].Chinese Science Bulletin,2009,54(19):2957-2961. |
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| Authors: | ZHANG Bo HE Hong & YU YunBo Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing China |
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| Affiliation: | ZHANG Bo,HE Hong & YU YunBo Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China |
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| Abstract: | The effect of post-treatment on the structure and morphology of Ru/RuO2 core-shell nanoparticles (Ru nanoparticle coated with its oxide, RNCO) was studied by X-ray photoelectron spectrometer (XPS), transmission electron microscopy (TEM), scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). RNCO was originally synthesized using an electrochemical method. Then, RNCO powder was washed by water or hydrochloric acid, and deposited respectively on Cu and Si substrates. RNCO in water mostly... |
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| Keywords: | Ru Ru oxide self-assemble/self-assembly |
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