物理化学学报 >> 2003, Vol. 19 >> Issue (04): 326-328.doi: 10.3866/PKU.WHXB20030409

研究论文 上一篇    下一篇

水热均匀沉淀法合成中孔氧化锆

程虎民;马玉荣;廖复辉;马季铭;齐利民   

  1. 北京大学化学与分子工程学院,北京 100871
  • 收稿日期:2002-07-16 修回日期:2002-10-29 发布日期:2003-04-15
  • 通讯作者: 程虎民 E-mail:hmcheng@chem;pku.edu.cn

Synthesis of Mesoporous Zirconia with Hydrothermal Homogeneous Precipitation Method

Cheng Hu-Min;Ma Yu-Rong;Liao Fu-Hui;Ma Ji-Ming;Qi Li-Min   

  1. College of Chemistry and Molecular Engineering, Peking University, Beijing 100871
  • Received:2002-07-16 Revised:2002-10-29 Published:2003-04-15
  • Contact: Cheng Hu-Min E-mail:hmcheng@chem;pku.edu.cn

摘要: 以尿素为均匀沉淀剂,用水热法合成了中孔ZrO2前体,经热处理(500~550 ℃,2 h)得到晶态(t或m相)短程有序中孔ZrO2.BJH脱附孔径约为4~6 nm, BET比表面积约为60~90 m2•g-1.

关键词: 中孔氧化锆, 尿素, 水热法, 均匀沉淀

Abstract: Using urea as homogeneous precipitant, the precursor of mesoporous zirconia was synthesized by hydrothermal method. After heat-treatment at 500~550 ℃ for 2 h, the crystalline (t or m phase) mesoporous zirconia with short-range order was prepared. Their BJH desorption pore size and BET surface area are about 4~6 nm and 60~90 m2•g-1, respectively.

Key words: Mesoporous zirconia, Urea, Hydrothermal, Uniform deposition