Acta Chimica Sinica ›› 2002, Vol. 60 ›› Issue (1): 76-80. Previous Articles     Next Articles

Original Articles

氧化锰团簇粒子在有序多孔氧化锆孔道中的组装及其特殊性能研究

陈航榕;施剑林;闫继娜;陈红光;阮美玲;严东生   

  1. 中国科学院上海硅酸盐研究所;中国科学院高性能陶瓷与超微结构国家重点实验室
  • 出版日期:2002-01-15 发布日期:2002-01-15

Study on the special properties of manganese oxide nanoclusters confined in the ordered porous zirconium oxide

CHEN HANGRONG;SHI JIANLIN;YAN JINA;CHEN HONGGUANG;RUAN MEILING;YAN DONGSHENG   

  • Online:2002-01-15 Published:2002-01-15

Manganese oxide nanoclusters were synthesized within ordered porous ZrO~2 by using wet impregnation technique. X-ray powder diffraction, HRTEM, XPS, UV-vis spectroscopy, Electron paramagnetic resonance (EPR) spectroscopy and O~2-TPD measurement were adopted for the characterization of the synthesized materials. The results showed that the nanoclusters of manganese oxide could be successfully confined and randomly distributed into the pores of ZrO~2. The size of the MnO~2 nanoclusters was better confined by the dimension of the pore channels with increasing the heating temperature. EPR measurement revealed that decreasing of the particles' sizes led to a significant chagne in the magnetic property. The excellent oxygen adsorption properties of the clusters of manganese oxide confined into the pore channels were demonstrated by the O~2-TPD analysis.

Key words: MANGANESE OXIDE, ZIRCONIUM OXIDE, ASSEMBLING, X-RAY DIFFRACTION ANALYSIS, TRANSMISSION ELECTRON MICROSCOPY, ULTRAVIOLET SPECTROPHOTOMETRY, PARAMAGNETIC RESONANCE, ADSORPTION

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