催化学报 ›› 2012, Vol. 33 ›› Issue (4): 645-650.DOI: 10.1016/S1872-2067(11)60350-1

• 研究论文 • 上一篇    下一篇

微波辅助的多元醇法合成 CoNi 纳米材料

郭小惠, 李勇, 刘琪英, 申文杰*   

  1. 中国科学院大连化学物理研究所催化基础国家重点实验室, 辽宁大连 116023
  • 收稿日期:2011-10-21 修回日期:2011-12-10 出版日期:2012-04-13 发布日期:2015-09-09

Microwave-Assisted Polyol-Synthesis of CoNi Nanomaterials

GUO Xiaohui, LI Yong, LIU Qiying, SHEN Wenjie*   

  1. State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China
  • Received:2011-10-21 Revised:2011-12-10 Online:2012-04-13 Published:2015-09-09

摘要: 利用微波辅助的多元醇法合成出纳米线和海胆状结构 Co0.8Ni0.2, 采用 X 射线衍射和透射电镜技术对该材料合成过程中的结构变化进行了详细的研究. 根据晶体的成核与生长速率阐述了 Co0.8Ni0.2 纳米结构的形成机理. 结果表明, Co0.8Ni0.2 纳米材料在丙三醇氢解反应中的催化性能与其形貌和粒径密切相关.

关键词: 微波加热, 多元醇合成, 钴, 镍, 纳米线, 海胆状结构, 丙三醇氢解

Abstract: Co0.8Ni0.2 nano-urchins and nanowires were fabricated by microwave-assisted polyol-synthesis. Their structural evolution was monitored by powder X-ray diffraction and transmission electron microscopy measurements. The nucleation and growth rates of the crystals in their formation mechanism were discussed. Their catalytic activity for glycerol hydrogenolysis depended on their anisotropic shape and particle size.

Key words: microwave-heating, polyol-synthesis, cobalt, nickel, nanowire, nanourchin, glycerol hydrogenolysis