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2012 , Vol. 27 >Issue 1: 89 - 94

DOI: https://doi.org/10.3724/SP.J.1077.2012.00089

石墨烯-银纳米粒子复合材料的制备及表征

  • 于美 ,
  • 刘鹏瑞 ,
  • 孙玉静 ,
  • 刘建华 ,
  • 安军伟 ,
  • 李松梅
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  • (1．北京航空航天大学 材料科学与工程学院, 空天先进材料与服役教育部重点实验室, 北京 100191; 2．国家知识产权局 专利审查协作中心, 北京 100088)
于 美(1981-), 女, 博士, 副教授. E-mail: yumei@buaa.edu.cn

收稿日期: 2011-04-07

  修回日期: 2011-06-07

  网络出版日期: 2011-12-19

基金资助

国家自然科学基金(51001007) National Natural Science Foundation of China (51001007)

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Fabrication and Characterization of Graphene-Ag Nanoparticles Composites

  • Mei YU ,
  • Peng-Rui LIU ,
  • Yu-Jing SUN ,
  • Jian-Hua LIU ,
  • Jun-Wei AN ,
  • Song-Mei LI
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  • (1. Key Laboratory of Aerospace Materials and Performance, Ministry of Education, School of Materials Science and Engineering, Beihang University, Beijing 100191, China; 2. State Intellectual Property Office of the People’s Republic of China, Beijing 100088, China)

Received date: 2011-04-07

  Revised date: 2011-06-07

  Online published: 2011-12-19

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摘要

以无毒、绿色的葡萄糖为还原剂, 在没有稳定剂、温和的液相反应条件下, 同时还原氧化石墨和银氨溶液中的银氨离子, 原位制备石墨烯-银纳米粒子复合材料. 采用X射线衍射、红外吸收光谱、拉曼光谱、扫描电镜和透射电子显微镜对所制备的石墨烯-银纳米粒子复合材料进行了表征. 结果表明: 氧化石墨和银离子在反应过程中同时被葡萄糖还原, 银纳米粒子均匀分布于石墨烯片层之间, 生成的银纳米粒子中大多数存在着孪晶界, 银纳米粒子的大小和分布受硝酸银用量的影响, 在合适的银离子浓度下, 负载在石墨烯片层上的银纳米粒子的粒径分布集中在25 nm左右; 复合材料中石墨烯的拉曼信号由于银粒子的存在增强了7倍.

关键词： 石墨烯; 银纳米粒子; 复合材料; 拉曼光谱

本文引用格式

于美 , 刘鹏瑞 , 孙玉静 , 刘建华 , 安军伟 , 李松梅 . 石墨烯-银纳米粒子复合材料的制备及表征[J]. 无机材料学报, 2012 , 27(1) : 89 -94 . DOI: 10.3724/SP.J.1077.2012.00089

Abstract

Graphene-Ag nanoparticles composites were prepared by one step in situ synthesis method, using nontoxic green glucose as reducer. Graphite oxide and ammoniacal silver ions were reduced at the same time without stabilizing agent under mild reaction conditions of aqueous solution. X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), Raman spectroscope, scanning electronic microscope (SEM), and transmission electronic electron microscope (TEM) were used to characterize the resulting composites. The results of analysis indicate that graphite oxide and ammoniacal silver ions are reduced by glucose simultaneously. Ag nanoparticles (AgNPs) uniformly distribute in the graphene sheets, and most of AgNPs show twin boundary. The quantity of silver nitrate influences the size and range of sizes of the AgNPs. The range of sizes of AgNPs on the graphene sheets centralizes at 25 nm under a suitable concentration of silver ions. The intensities of the Raman signals of graphene in the composites increase 7 fold by the loaded AgNPs.

Key words： graphene; Ag nanoparticles; composites; Raman spectrum

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