METHOD FOR PREPARING A LARGE CONTINUOUS ORIENTED NANOSTRUCTURED MIXED METAL OXIDE FILM
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United States of America Patent
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Issued Date -
May 8, 2008
app pub date -
Sep 11, 2007
filing date -
Nov 7, 2006
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Abandoned
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Abstract
This invention provides a general method for preparing a large oriented nanostructured mixed metal oxide (MMO) film comprising the steps of (a) preparing a highly (00l)-oriented LDH film, and (b) calcining the LDH film at a temperature of 300.degree. C. to 1300.degree. C. for 10 min to 36 h to obtain an oriented nanostructured MMO film. In the oriented MMO film, MMO nanoparticles are densely packed and form defect-free films which have high thermal stability. The major advantage of the present method is that it can be used for mass-production of large continuous oriented nanostructured MMO films without using any templates, lattice-matched single-crystalline substrates and/or expensive equipment, and the composition of the prepared MMO films can be readily adjusted by changing the composition of the LDHs fims as the precursor.
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