| 单分子层表面修饰铜纳米颗粒的制备方法 |
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| 引用本文： | 刘流,万宏启,陈磊,陈建敏,周惠娣.单分子层表面修饰铜纳米颗粒的制备方法[J].兰州大学学报(自然科学版),2009,45(3). |
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| 作者姓名： | 刘流 万宏启 陈磊 陈建敏 周惠娣 |
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| 作者单位： | 1. 中国科学院,兰州化学物理研究所固体润滑国家重点实验室,兰州,730000;中国科学院研究生院,北京,100049;天水师范学院生命科学与化学学院,甘肃,天水,741000
2. 中国科学院,兰州化学物理研究所固体润滑国家重点实验室,兰州,730000 |
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| 基金项目： | 国家重点基础研究发展规划(973计划)，国家创新研究群体基金 |
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| 摘 要： | 在乙醇-水体系中,以N,N'-二丁基二硫代氨基甲酸烷基酯为修饰剂,在NaOH和十六烷基三甲基溴化铵(CTAB)存在下,用硼氢化钠还原硫酸铜,制备了粒径、形貌可控的单分子层表面修饰铜纳米颗粒.利用FT-IR、TEM、XPS、UV-Vis等手段对铜纳米颗粒进行了表征.结果表明:修饰剂对铜纳米颗粒的粒径大小、分布、形貌有一定影响,N,N'-二丁基二硫代氨基甲酸烷基酯能在铜纳米颗粒表面形成较紧密的吸附层,有效提高了铜纳米颗粒的稳定性和分散性,并且随着修饰剂烷基链的增长,铜纳米颗粒的粒径略有增大.
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| 关 键 词： | 表面修饰 铜纳米颗粒 制备 化学还原法 |
Synthesis of copper nanoparticles surface-modified with self-assembled monolayers |
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| LIU Liu,WAN Hong-qi,CHEN Lei,CHEN Jian-min,ZHOU Hui-di.Synthesis of copper nanoparticles surface-modified with self-assembled monolayers[J].Journal of Lanzhou University(Natural Science),2009,45(3). |
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| Authors: | LIU Liu WAN Hong-qi CHEN Lei CHEN Jian-min ZHOU Hui-di |
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| Institution: | 1;2;3;1.State Key Laboratory of Solid Lubrication;Lanzhou Institute of Chemical Physics;Chinese Academy of Sciences;Lanzhou 730000;China;2.Graduate School;Beijing 100049;China 3.Institute of Life Science and Chemistry;Tianshui Normal University;Tianshui 741000;Gansu;China |
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| Abstract: | Size-and shape-controlled phase surface-modified copper nanoparticles were synthesized from copper sulfate pentahydrate with NaBH_4 as the reductant and N,N'-dibutyl-amino-dithiocarbamate-R(R=alkyl) as modifiers at room temperature in ethanol-aqueous solution system in the presence of NaOH and CTAB. The prepared copper nanoparticles were characterized by FTIR,TEM,XPS,UV-Vis.The presence of modifiers was obvious in the control of particle sizes,size distributions,and shapes.The result shows that the N,N'-dib... |
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| Keywords: | surface-modified copper nanoparticle synthesis chemical reduction |
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