高等学校化学学报 ›› 2002, Vol. 23 ›› Issue (5): 947.

• 研究简报 • 上一篇    下一篇

耐高温高表面氧化铝的制备及性质──添加钡及钡与镧的协同作用对氧化铝热稳定性的影响

龚茂初1, 章洁1, 林之恩1, 谢春英1, 陈耀强1, 郑林2, 李孝维2, 许清淮2   

  1. 1. 四川大学化学学院, 成都 610064;
    2. 四川川化集团公司催化剂厂, 成都 610064
  • 收稿日期:2001-03-28 出版日期:2002-05-24 发布日期:2002-05-24
  • 通讯作者: 龚茂初(1951年出生),男,教授,从事多相催化和催化材料研究.E-mail:maochugong@263.net E-mail:maochugong@263.net
  • 基金资助:

    四川省科委应用基础研究基金资助.

Preparation and Property of High Surface Area Alumina Resisting High TemperatureEffect of Barium Addition and Its Synergy with Lanthanum on the Thermal Stability of Alumina

GONG Mao-Chu1, ZHANG Jie1, LIN Zhi-En1, XIE Chun-Ying1, CHEN Yao-Qiang1, ZHENG Lin2, LI Xiao-Wei2, XU Qing-Huai2   

  1. 1. Faculty of Chemistry, Sichuan University, Chengdu 610064, China;
    2. Catalyst Plant, Sichuan Chemical Works(Group), Chengdu 610301, China
  • Received:2001-03-28 Online:2002-05-24 Published:2002-05-24

关键词: 氧化铝, 镧, 钡, 协同作用, 热稳定性

Abstract: High surface area alumina resisting high temperature was prepared by sol-gel method or sol-gel assisted impregnation method.The effects of barium addition and its synergy with lanthanum on the thermal stability were studied by XRDand surface analysis techniques.The results showed that when Ba was introduced by sol-gel method, Ba showed a little effect in improving the thermal stability of alumina.While 5.2% La introduced by sol-gel method and 2.0% Ba was introduced by impregnation method, because of the synergy between barium and lanthanum, the alumina maintained surface area of 112.90 m2/g after calcination at 1100 for 32 h.

Key words: Alumina, Lanthanum, Barium, Synergy, Thermal stability

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