Adv. Search
Journal of Inorganic Materials

Journal of Inorganic Materials >

2006 , Vol. 21 >Issue 6: 1417 - 1422

DOI: https://doi.org/10.3724/SP.J.1077.2006.01417

Research Paper

Effects of Doping Manganese on the Properties of Ce-Zr Compound Oxides

  • LIU Ping ,
  • FANG Hua ,
  • ZHAO Ming ,
  • ZHANG Li-Juan ,
  • ZHANG Xiao-Yu ,
  • GONG Mao-Chu ,
  • CHEN Yao-Qiang
Expand
  • College of Chemistry, Sichuan University, Chengdu 610064, China

Received date: 2005-11-28

  Revised date: 2006-04-21

  Online published: 2006-11-20

Fold

Abstract

A series of
Ce-Zr-Mn compound oxides oxygen storage materials were synthesized by a
co-precipitation method and characterized by X-ray diffraction (XRD), BET,
oxygen adsorption and temperature programmed reduction (TPR). The modification of the textural and structural properties, oxygen storage capacity, redox
behavior, and phase changes were investigated. The results show that incorporating a small amount of manganese into Ce-Zr solid solution can remarkably improve the oxygen storage capacity and decrease the temperature of the reduction of the oxygen storage materials. Moreover, only a stable
cubic phase CeO2-ZrO2 solid solution is formed. The Ce-Zr-Mn Compound oxide indicates the highest oxygen storage capacity (OSC) and excellent property of resistance to aging when manganese content (mole fraction) is
0.025, its surface area can reach 57.8m2/g after aging 5h at 1273K.

Key words： Ce-Zr-Mn compound oxides; OSC; reducibility; resistance to aging

Cite this article

LIU Ping , FANG Hua , ZHAO Ming , ZHANG Li-Juan , ZHANG Xiao-Yu , GONG Mao-Chu , CHEN Yao-Qiang . Effects of Doping Manganese on the Properties of Ce-Zr Compound Oxides[J]. Journal of Inorganic Materials, 2006 , 21(6) : 1417 -1422 . DOI: 10.3724/SP.J.1077.2006.01417

References

[1] Kaspar J, Fornasiero P, Graziani M. Catalysis Today, 1999, 50: 285--298.
[2] Shin’ichi Matsumoto. Catalysis Today, 2004, 90: 183--190.
[3] 闫宗兰, 罗孟飞, 谢冠群, 等(YAN Zong-Lan, et al). 无机材料学报(Journal of Inorganic Materials), 2005, 21 (3): 425--428.
[4] Fornasicro P, Balducci G, Di Monte R, et al. Journal of Catalysis, 1996, 164: 173--183.
[5] He H, Dai H X, Ng L H, et al. Journal of Catalysis, 2002, 206: 1--13.
[6] Marta Boaro, Carla De Liebenberg, Giuliano Dolcetti, et al. Journal of Catalysis, 2000, 193: 338--347.
[7] Kaspar J, Fornasicro P, Balducci G, et al. Inorganica Chimica Acta, 2003, 349: 217--236.
[8] Imamura S, Shono M, Okamoto N, et al. Applied Catalysis A: General 1996, 142: 279--288.
[9] 阎忠君, 杨栋, 文明芬, 等(YAN Zhong-Jun, et al). 中国稀土学报(China Journal of Rare Earths), 2005, 23 (3): 349--352.
[10] Carla E. Hori, Haryani Permana, K.Y. Simon Ng, et al. Applied Catalysis B: Environmental, 1998, 16: 105--117.
[11] Terribile D, T rovarelli, Leitenburg C, et al. Catalysis Today, 1999, 47: 133--140.
Options
Outlines

/

〈 〉