| 有机两相法制备巯基羧酸修饰的小尺寸贵金属纳米粒子 |
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| 引用本文： | 刘锋,顾永万,胡晋铨,杨冬霞,贺小昆,卢 军,赵云昆.有机两相法制备巯基羧酸修饰的小尺寸贵金属纳米粒子[J].贵金属,2014,35(3):1-5. |
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| 作者姓名： | 刘锋 顾永万 胡晋铨 杨冬霞 贺小昆 卢 军 赵云昆 |
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| 作者单位： | 昆明贵研催化剂有限责任公司贵金属催化技术与应用国家地方联合工程实验室;贵研铂业股份有限公司稀贵金属综合利用新技术国家重点实验室;昆明理工大学冶金与能源工程学院; |
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| 基金项目： | 国家自然科学基金面上项目(51374117) |
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| 摘 要： | 以生物相容性较好的巯基羧酸分子为保护剂、NaBH4为还原剂,采用有机两相法制备金属纳米粒子,实现了对纳米粒子的表面功能化。该方法制备的纳米材料粒径小(5 nm),单分散性好。讨论了巯基羧酸与金属前驱体之间的投料比、还原剂NaBH4的量以及巯基羧酸分子链长等因素对纳米粒子形貌的影响。除Au外,该方法还适用巯基羧酸对Ag、Pt和Pd等多种纳米粒子的表面修饰。
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| 关 键 词： | 材料化学 有机两相法 巯基羧酸 贵金属 纳米粒子 尺寸控制 |
| 收稿时间： | 2013/12/20 0:00:00 |
Two Phase Preparation of Small Size of Precious Metal Nanoparticles Modified with Mercapto Carboxylic Acid |
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| LIU Feng,GU Yongwan,HU Jinquan,YANG Dongxi,HE Xiaokun,LU Jun and ZHAO Yunkun.Two Phase Preparation of Small Size of Precious Metal Nanoparticles Modified with Mercapto Carboxylic Acid[J].Precious Metals,2014,35(3):1-5. |
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| Authors: | LIU Feng GU Yongwan HU Jinquan YANG Dongxi HE Xiaokun LU Jun and ZHAO Yunkun |
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| Affiliation: | State-Local Joint Engineer Laboratory of Precious Metal Catalytic Technology and Application, Kunming Sino-Platinum Metals Catalyst Co.Ltd., Kunming 650106, China;State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Sino-Platinum Co.Ltd., Kunming 650106, China;State-Local Joint Engineer Laboratory of Precious Metal Catalytic Technology and Application, Kunming Sino-Platinum Metals Catalyst Co.Ltd., Kunming 650106, China;Faculty of Metallurgy and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China;State-Local Joint Engineer Laboratory of Precious Metal Catalytic Technology and Application, Kunming Sino-Platinum Metals Catalyst Co.Ltd., Kunming 650106, China;State-Local Joint Engineer Laboratory of Precious Metal Catalytic Technology and Application, Kunming Sino-Platinum Metals Catalyst Co.Ltd., Kunming 650106, China;State-Local Joint Engineer Laboratory of Precious Metal Catalytic Technology and Application, Kunming Sino-Platinum Metals Catalyst Co.Ltd., Kunming 650106, China;State-Local Joint Engineer Laboratory of Precious Metal Catalytic Technology and Application, Kunming Sino-Platinum Metals Catalyst Co.Ltd., Kunming 650106, China;State-Local Joint Engineer Laboratory of Precious Metal Catalytic Technology and Application, Kunming Sino-Platinum Metals Catalyst Co.Ltd., Kunming 650106, China;State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Sino-Platinum Co.Ltd., Kunming 650106, China |
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| Abstract: | The bio-compatible mercapto carboxylic acid molecule and NaBH4 as protective agent and reductant respectively, prepared Au nanoparticles with organic two-phase method, realized the function of the surface of metal nanoparticles. The nanomaterials synthesized by this method has small particle size (<5 nm) and good dispersion. Furthermore, the effects of the ratio of mercapto carboxylic acid to metal precursor, the amount of NaBH4, and the length of carbone chain for carboxylic acid molecular on the morphology of nanoparticles were studied. Except for Au, this method is also suitable for the surface modification of Ag, Pt and Pd nanoparticles. |
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| Keywords: | materials chemistry organic two-phase method mercapto carboxylic acid precious metal nanoparticles size control |
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