| Preparation of ultrafine core-shell nickel spheres via self-sacrificial template |
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| 作者单位： | State Key Laboratoryof Metal Matrix Composites Shanghai Jiaotong University，State Key Laboratoryof Metal Matrix Composites，Shanghai Jiaotong University，State Key Laboratoryof Metal Matrix Composites，Shanghai Jiaotong University，State Key Laboratoryof Metal Matrix Composites，Shanghai Jiaotong University，State Key Laboratoryof Metal Matrix Composites，Shanghai Jiaotong University，Shanghai 200030，China，Shanghai 200030，China，Shanghai 200030，China，Shanghai 200030，China，Shanghai 200030，China |
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| 基金项目： | 国家自然科学基金;上海市自然科学基金 |
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| 摘 要： | 1 Introduction Ultrafine particles stand for granules with diameter less than 0.5 μm. For their extremely small size and large specific surface area, these sub-micron powders can be widely used as catalysts, adsorbents in the fields of chemistry, physics…
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| 关 键 词： | 超微颗粒 镍 Ni（OH）2 制备 模板 |
| 收稿时间： | 2005-12-20 |
| 修稿时间： | 2006-04-20 |
Preparation of ultrafine core-shell nickel spheres via self-sacrificial template |
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| LIU Xi,DENG Yi-da,SHEN Bin,LIU Lei,HU Wen-bin. Preparation of ultrafine core-shell nickel spheres via self-sacrificial template[J]. Transactions of Nonferrous Metals Society of China, 2006, 16(5): 1184-1188. DOI: 10.1016/S1003-6326(06)60398-1 |
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| Authors: | LIU Xi DENG Yi-da SHEN Bin LIU Lei HU Wen-bin |
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| Affiliation: | 1. Department of Chemistry, Kosar University of Bojnord, Bojnord, Islamic Republic of Iran;2. Institute of Nano Science and Nano Technology, University of Kashan, P.O. Box 87317-51167, Kashan, Islamic Republic of Iran;1. Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province, Institute of Surface Micro and Nano Materials, Xuchang University, Henan 461000, PR China;2. Center for Food Safety and Applied Nutrition, U.S. Food and Drug Administration, College Park, MD 20740, USA;1. College of Science, Donghua University, Shangha, 201620, China;2. School of Information Science and Technology, Donghua University, Shanghai, 201620, China;3. State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China;1. Chair for Crystallography and Structure Physics, University of Erlangen-Nürnberg, Staudtstr. 3, 91058 Erlangen, Germany;2. Department of Materials Science, University of Erlangen-Nürnberg, Martenstr. 9, 91058 Erlangen, Germany |
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| Abstract: | Self-sacrificial template, which is freshly precipitated Ni(OH)2 colloid, is used to fabricate ultrafine core-shell nickel spheres. The size distribution, morphology, chemical and catalyzed properties of the synthesized spheres can be controlled by regulating the preparation conditions. The varying conditions are: initial nickel ion concentration, the pH value of the solution, the scouring agent and the anion in saline solution. With very little Ni2 concentration in the solution, the hollow spheres are formed. The higher the alkali content, the more the ultrafine colloidal cores. |
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| Keywords: | ultrafine particles core-shell self-sacrifice morphology |
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