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Prussian Blue/Multiwalled Carbon Nanotube Hybrids: Synthesis, Assembly and Electrochemical Behavior
Author(s) -
Zhai Junfeng,
Zhai Yueming,
Wen Dan,
Dong Shaojun
Publication year - 2009
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.200904680
Subject(s) - prussian blue , carbon nanotube , materials science , fourier transform infrared spectroscopy , chemical engineering , hybrid material , nanotube , electrochemistry , scanning electron microscope , layer (electronics) , absorption spectroscopy , aqueous solution , nanoparticle , nanotechnology , spectroscopy , nuclear chemistry , electrode , chemistry , organic chemistry , composite material , optics , quantum mechanics , engineering , physics
Prussian blue/carbon nanotube (PB/CNT) hybrids with excellent dispersibility in aqueous solutions were synthesized by adding CNTs to an acidic solution of Fe 3+ , [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 Fe 3+ to Fe 2+ 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 H 2 O 2 reduction.