高等学校化学学报

高等学校化学学报 ›› 2000, Vol. 21 ›› Issue (S1): 195.

• Chemistry in Materials Sciences • 上一篇    下一篇

Size-control Synthesis of Oxide Nanocrystals by Alcogel Chemistry under Normal Pressure

XU Bo-Qing, WEI Jun-Mei, WANG Hai-Yan, ZHANG Fa-Zhi, YIN Shuan-Feng   

  1. State Key Lab of C1 Chemical Technology and Department of Chemistry, Tsinghua University, Beijing 100084
  • 出版日期:2000-12-31 发布日期:2000-12-31

Size-control Synthesis of Oxide Nanocrystals by Alcogel Chemistry under Normal Pressure

XU Bo-Qing, WEI Jun-Mei, WANG Hai-Yan, ZHANG Fa-Zhi, YIN Shuan-Feng   

  1. State Key Lab of C1 Chemical Technology and Department of Chemistry, Tsinghua University, Beijing 100084
  • Online:2000-12-31 Published:2000-12-31

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摘要：

There is an urgent need,for chemists, to develop synthetic methods leading to large-scale formation of nanoparticles with selected sizes. Our group showed recently that a change of the conventional hydrogels of zirconyl hydroxide to its alcogels followed by nanocrystal formation under controlled atmospheres at elevated temperatures seems to be a simple and yet effective practice to the size control (8-30 nm) of nano-zirconia particles. This new approach is exploited here as a general method for the size-control synthesis of metal oxide nanocrystals.

Abstract:

There is an urgent need,for chemists, to develop synthetic methods leading to large-scale formation of nanoparticles with selected sizes. Our group showed recently that a change of the conventional hydrogels of zirconyl hydroxide to its alcogels followed by nanocrystal formation under controlled atmospheres at elevated temperatures seems to be a simple and yet effective practice to the size control (8-30 nm) of nano-zirconia particles. This new approach is exploited here as a general method for the size-control synthesis of metal oxide nanocrystals.

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