Vanadium(V) Oxide – Metal Organic Nanocomposites as Electrochemical Sensing Materials

Abstract:

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This work deals with a new class of vanadium pentoxide nanocomposites containing supramolecular iron or manganese tetrapyridyl porphyrins coordinated to four [Ru(bipy)2Cl]+ complexes. Their characterization was carried out by means of X-ray diffraction, SEM, AFM, confocal Raman microscopy, electronic spectroscopy and electrochemistry. According to X-ray diffraction, the original VXG lamellar framework was maintained in the nanocomposite material, but the interlamellar distance increased from 11.6 Å to 18.5 Å, reflecting the intercalation of the porphyrin species into the inorganic matrix. The films generated by direct deposition of the nanocomposite aqueous suspensions onto interdigitated gold electrodes exhibited good electrical and electrochemical performance for application in amperometric sensors.

Info:

Periodical:

Materials Science Forum (Volumes 636-637)

Edited by:

Luís Guerra ROSA and Fernanda MARGARIDO

Pages:

729-736

DOI:

10.4028/www.scientific.net/MSF.636-637.729

Citation:

H.E. Toma et al., "Vanadium(V) Oxide – Metal Organic Nanocomposites as Electrochemical Sensing Materials", Materials Science Forum, Vols. 636-637, pp. 729-736, 2010

Online since:

January 2010

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$35.00

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