高等学校化学学报 ›› 1997, Vol. 18 ›› Issue (2): 264.

• 论文 • 上一篇    下一篇

ZrO2对CuO/γ-Al2O3催化剂CO氧化性能的影响

周仁贤, 蒋晓原, 丁云杰, 郑小明   

  1. 杭州大学催化研究所, 杭州, 310028
  • 收稿日期:1996-01-30 出版日期:1997-02-24 发布日期:1997-02-24
  • 通讯作者: 周仁贤, 男, 32岁硕士, 副教授.
  • 作者简介:周仁贤, 男, 32岁硕士, 副教授.
  • 基金资助:

    浙江省教育委员会自然科学基金

Effect of ZrO2 on CuO/γ-Al2O3 Catalyst in Carbon Monoxide Oxidation

ZHOU Ren-Xian, JIANG Xiao-Yuan, DING Yun-Jie, ZHENG Xiao-Ming   

  1. Institute of Catalysis, Hangzhou University, Hangzhou, 310028
  • Received:1996-01-30 Online:1997-02-24 Published:1997-02-24

摘要: 用流动反应法、TPR、TPO和TG等技术研究了ZrO2的改性和CuO负载量对Cuo/y-Al2O3催化剂的氧化性能及还原行为的影响.实验结果表明,在低负载量(wCuO=15%以下)时,ZrO2对γ-Al2O3的改性可明显提高CuO/γ-Al2O3催化剂的CO氧化活性.ZrO2的存在可增加活性铜物种在载体表面的富集和有效地促进CU2+物种的氧化还原循环,增加CuO催化剂表面上铜物种的可还原量,从而促进CuO催化剂的氧化活性.

关键词: CuO/&gamma, -Al2O3催化剂, ZrO2, 程序升温还原

Abstract: The effect of ZrO2 modification of γ-Al2O3 and CuOcontents on the property of COoxidation and the reduction behavior of CuO/γ-Al2O3 catalysts were investigated by TPR, TGand flowing reaction methods.The results indicate that ZrO2 modification of γ-Al2O3 support could increase the activity of COoxidation of CuO-supported catalysts at low copper loading(CuO<15 %) - The presence of ZrO2 increased the BETsurface area of the catalysts and the amount of reducible CuO.

Key words: CuO/γ-Al2O3, catalyst, ZrO2, TPR

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