催化学报

催化学报 ›› 2010, Vol. 31 ›› Issue (9): 1172-1176.DOI: 10.3724/SP.J.1088.2010.00215

• 研究论文 • 上一篇    下一篇

碳化物修饰的有序介孔炭的制备及其催化肼分解性能

王辉 1, 2, 张慧 1, 2, 王爱琴 1, 张涛 1   

  1. 1 中国科学院大连化学物理研究所, 辽宁大连 116023 2 中国石油化工股份有限公司上海石油化工研究院, 上海 201208
  • 收稿日期:2010-09-30 出版日期:2010-09-30 发布日期:2014-01-25

Preparation of Metal Carbide Imbedded Ordered Mesoporous Carbon and Its Catalytic Properties for N2H4 Decomposition

WANG Hui1,2, ZHANG Hui1,2, WANG Aiqin1, ZHANG Tao1,?   

  1. 1Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China 2Shanghai Research Institute of Petrochemical Technology, SINOPEC, Shanghai 201208, China
  • Received:2010-09-30 Online:2010-09-30 Published:2014-01-25

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1211

被引次数

10

摘要： 以间苯二酚和甲醛为炭源, F127 (EO106PO70EO106) 为结构导向剂, 在酸性水/乙醇溶液中引入 (NH4)6Mo7O24•4H2O 或 (NH4)2WO4 溶液, 经静置自组装形成凝胶, 再于 N2 中焙烧即合成出金属碳化物修饰的有序介孔炭材料. 结果表明, 金属离子的种类和用量对碳化物的分散度和介孔炭的有序度影响很大. 通过控制金属离子的用量可制备出粒径为 3~5 nm 且高度分散在介孔炭骨架中的碳化物粒子. 与分步浸渍法相比, 一步法制备的碳化物具有更高的分散度和催化肼分解活性.

关键词: 有序介孔炭, 碳化钼, 碳化钨, 肼, 催化分解

Abstract: A metal carbide imbedded ordered mesoporous carbon (MC-OMC) material was synthesized by direct carbonization of a self-assembled composite that was made from F127 (EO106PO70EO106), resorcinol-formaldehyde, and (NH4)6Mo7O24•4H2O or (NH4)2WO4 in an acidic medium of aqueous ethanol solutions. The type and amount of the metal ions have a great influence on ordering degree of the resulting materials. Metal carbide particles with uniform size of 3–5 nm are highly dispersed on the pore wall of the carbon structure. The prepared MoC-OMC has excellent activity for direct N2H4 decomposition. The strong interaction between Mo7O246– and the resin plays an important role in the synthesis of this material.

Key words: ordered mesoporous carbon, molybdenum carbide, tungsten carbide, hydrazine, catalytic decomposition