Journal
ELECTROANALYSIS
Volume 21, Issue 20, Pages 2207-2212Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/elan.200904680
Keywords
Prussian blue; Carbon nanotubes; H2O2 reduction; Layer-by-layer assembly; Nanotubes; Layered compounds
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Funding
- National Natural Science Foundation of China [20675076, 20820102037]
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Prussian blue/carbon nanotube (PB/CNT) hybrids with excellent dispersibility in aqueous solutions were synthesized by adding CNTs to an acidic solution of Fe3+, [Fe(CN)(6)](3-) and KCl. Fourier transform infrared spectroscopy, UV-vis absorption spectroscopy and scanning electron microscopy were employed to confirm the formation of PB/CNT hybrids. The PB nanoparticles formed on the CNT surfaces exhibit a narrow size distribution and an average size of 40 nm. The present results demonstrate that the selective reduction of Fe3+ to Fe2+ by CNTs is the key step for PB/CNT hybrid formation. The subsequent fabrication of the PB/CNT hybrid films was achieved by layer-by-layer technique. The thus-prepared PB/CNT hybrid films exhibit electrocatalytic activity towards H2O2 reduction.
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