高等学校化学学报 ›› 1997, Vol. 18 ›› Issue (6): 958.

• 研究快报 • 上一篇    下一篇

TPR in situ 57Fe MBS研究Fe/γ-Al2O3及Pt-Fe/γ-Al2O3催化剂

贾继飞1, 沈俭一2, 徐竹生1, 葛欣2, 张涛1, 林励吾1   

  1. 1. 中国科学院大连化学物理研究所, 大连, 116023;
    2. 南京大学化学系, 南京, 210093
  • 收稿日期:1996-11-13 出版日期:1997-06-24 发布日期:1997-06-24
  • 通讯作者: 林励吾.
  • 作者简介:贾继飞, 男, 27岁, 博士研究生.
  • 基金资助:

    福特-中国研究与发展资助!094123O2;国家自然科学基金;国家教育委员会跨世纪人才基金

Studies of TPR in situ 57Fe MBS on the Reduction Behavior of the γ-Al2O3 Supported Iron and Platinum-iron Catalysts

JIA Ji-Fei1, SHEN Jian-Yi2, XU Zhu-Sheng1, GE Xin2, ZHANG Tao1, LIN Li-Wu1   

  1. 1. Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023;
    2. Department of Chemistry, Nanjing University, Nanjing, 210093
  • Received:1996-11-13 Online:1997-06-24 Published:1997-06-24

关键词: Fe/&gamma, -Al2O3, Pt-Fe/&gamma, -Al2O3, TPR, TPRinsitu57FeMBS

Abstract: The reduction behavior of Y-Al2O3 supported iron and platinum-iron catalysts was studied by TPRcombined in situ 57Fe MBS. The results indicated that Fe3+ is highly dis-persed on the Y-Al2O3 surface for all the samples containing iron before the reduction. No Fe0 was found in the reduction process. The Fe3+ was reduced to Fe2+ in tetrahedral vacancy first in Pt-Fe/Y-Al2O3 sample in TPRprocess. The TPRprocesses of all supported iron samples are very different from those of α-Fe2O3/sub>.

Key words: Fe/γ-Al2O3, Pt-Fe/γ-Al2O3, TPR, TPR in situ 57Fe MBS

TrendMD: