Nanocrystalline Bimetallic Oxides from Molecular Precursors

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原文链接

NETL

外文摘要：Synthesis of bimetallic oxides from individual components poses a challenge on the conventional material processing methods largely due to the differences in the intrinsic chemical behaviour of the starting materials that leads to undesired stoichiometries and residual monometal phases in the final material. To a large extent, this limitation can be overcome by employing metal-organic precursors that contain all atomic constituents, required to form the target solid-state phase, in a single molecule. The fact that the extended solid-state structure is derived from molecular building blocks substantiates the inherent advantages of chemical methods due to controlled and defined reaction chemistry. We have examined the single-step conversion of various heterometal alkoxides via Sol-Gel process to obtain nanocrystalline bimetallic oxides with homogeneous particle sizes and narrow size-distributions.

外文关键词：

bimetallic oxidesnanoscaled materialssingle-source precursorsol-gel

作者：

Sanjay Mathur、Hao Shen、Michael Veith

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作者单位：

Institute of New Materials, CVD Division, DE-66041 Saarbruecken, Germany

会议名称：

Metastable, Mechanically Alloyed and Nanocrystalline Materials(ISMANAM 2003)

会议地点：

Foz do Iguacu(BR);Foz do Iguacu(BR)

会议母体文献：

International Symposium on Metastable, Mechanically Alloyed and Nanocrystalline Materials(ISMANAM 2003); 20030824-20030828; Foz do Lguacu; BR

页码：

P.118-126

出版时间：

2003