高等学校化学学报 ›› 2002, Vol. 23 ›› Issue (1): 129.

• 研究简报 • 上一篇    下一篇

Co/HZSM-5催化剂中Co相态和价态的表征

张强, 汪晓东   

  1. 北京大学化学与分子工程学院高分子科学与工程系, 北京 100871
  • 收稿日期:2000-11-21 出版日期:2002-01-24 发布日期:2002-01-24
  • 通讯作者: 张强(1962年出生),男,博士,副教授,从事多相催化和高分子材料研究.

Charaterization of the Phase and Valency State of Co on Co/HZSM-5 Catalysts

ZHANG Qiang, WANG Xiao-Dong   

  1. College of Materials Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China
  • Received:2000-11-21 Online:2002-01-24 Published:2002-01-24

关键词: Co/HZSM-5催化剂, 相态, 价态, 表征

Abstract: The phase and valency state of cobalt species on Co/HZSM-5 catalysts containing 10% to 100% cobalt were characterized by XRD, TPR and DRStechnique. It was found that cobalt species on Co/HZSM-5 may exist in the phases of Co3O4, CoO, CoAl2O4 spinel, exchanged Co or metal Co at different calcination and reduction temperature, and CoAl2O4 spinel is difficult to be reduced.

Key words: Co/HZSM-5 catalyst, Phase state, Valency state, Characterization

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