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Vanadium pentoxide xerogels were prepared by the hydrolysis of VO(OC 3 H 7 ) 3 by the sol−gel process. The generation of V 2 O 5 was optimized by a combinatorial approach incorporating rapid screening by Raman spectroscopy. The latter revealed crystallites of vanadium oxide. Subsequently poly( p -ethylphenol) (PEP)/V 2 O 5 nanocomposites were prepared by the sol−gel process at the optimized molar ratio of VO(OC 3 H 7 ) 3 /H 2 O/acetone = 1/45/300. Evidence from Raman spectra indicated that the presence of PEP did not interfere in the formation of crystalline V 2 O 5 in the composites. FTIR also exhibited interaction between PEP and V 2 O 5 . TEM showed a fibrous V 2 O 5 structure dispersed in the PEP matrix.
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Wang et al. (1999) studied this question.
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