节点文献

SnO2纳米棒的氧化还原特性

The Redox Properties of SnO2 Nanorods

  • 推荐 CAJ下载
  • PDF下载
  • 不支持迅雷等下载工具,请取消加速工具后下载。

【作者】 赵鹤云; 赵忠泽; 赵义芬; 柳清菊;

【Author】 ZHAO Heyun1,2,,ZHAO Zhongze3,ZHAO Yifen1,LIU Qingju1,2 1Department of Materials Science and Engineering,Yunnan University,Kunming 650091,Yunnan,China 2Yunnan Key Laboratory of Nanomaterials and Nanotechnology,Yunnan University,Kunming 650091,Yunnan,China 3Business School,Yunnan Normal University,Kunming 650106,Yunnan,China

【机构】 云南大学材料科学与工程系; 云南大学云南省高校纳米材料与技术重点实验室; 云南师范大学商学院;

【摘要】 利用室温固相反应在NaCl-KCl熔盐介质中,通过焙烧含SnO2纳米颗粒前驱体合成了SnO2纳米棒,并采用X射线衍射、扫描电镜、透射电镜、选区电子衍射和X射线光电子能谱对SnO2纳米棒进行了表征.结果表明,SnO2纳米棒是表面光滑、结晶完整的金红石结构单晶体,直径为10~20nm,长度为几百纳米到几个微米.程序升温还原结果表明,SnO2纳米棒具有较好的氧化还原性能和催化活性.探讨了SnO2纳米棒的氧化还原机理.

【Abstract】 SnO2 nanorods were successfully synthesized in molten NaCl-KCl salt through calcination of SnO2 nanoparticles precursor pre-pared by solid state reaction at room temperature.The structure and morpho1ogy of SnO2 nanorods were characterized by X-ray diffraction,scanning electron microscopy,transmission electron microscopy,selected-area electron diffraction,and X-ray photoelectron spectroscopy.The results showed that the SnO2 nanorods with 10–20 nm diameter and several micrometers length were rutile structure.The results of H2 temperature-programmed reduction demonstrated that the SnO2 nanorods had good redox performance.The redox mechanism was discussed in detail.

【基金】 云南省科技厅应用基础研究项目(2007E173M);云南省教育厅自然科学重点研究项目(07Z11021);云南大学自然科学研究项目(2007JN001)
  • 【文献出处】 催化学报 ,Chinese Journal of Catalysis , 编辑部邮箱 ,2010年01期
  • 【分类号】TB383.1
  • 【被引频次】10
  • 【下载频次】308
节点文献中: