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Dendrimer-rhodium nanoparticle modified glassy carbon electrode for amperometric detection of hydrogen peroxide

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Title Dendrimer-rhodium nanoparticle modified glassy carbon electrode for amperometric detection of hydrogen peroxide
 
Creator CHANDRA, S
LOKESH, KS
NICOLAI, A
LANG, H
 
Subject gold nanoparticles
horseradish-peroxidase
potential applications
metal particles
nafion film
biosensor
catalysts
h2o2
pd
dendrimer
rhodium nanoparticles
glassy carbon electrode
h(2)o(2) reduction
cyclic voltammetry
chronoamperometry
 
Description Metallic nanoparticles of rhodium were prepared by using the newly synthesized N,N-bis-succinamide-based dendrimer as stabilizers. The Rh nanoparticles were spherical shaped with a particle size of similar to 2 nm. The dendrimer Rh-encapsulated nanoparticles (Rh-DENs) were immobilized on glassy carbon electrode (CCE) and their electrocatalytic activity towards hydrogen peroxide reduction was investigated using cyclic voltammetry and chronoamperometry. The Rh-DENs modified GCE showed excellent electrocatalytic activity for hydrogen peroxide reduction reactions. The steady-state cathodic current response of the modified electrode at -0.3 V (vs SCE) in phosphate buffer (pH 7.0) showed a linear response to hydrogen peroxide concentration ranging from 8 to 30 mu M with a detection limit and sensitivity of 5 mu M and 0.03103 x 10(-6) A mu M(-1), respectively. (C) 2008
 
Publisher ELSEVIER SCIENCE BV
 
Date 2011-07-24T16:58:36Z
2011-12-26T12:47:18Z
2011-12-27T05:36:18Z
2011-07-24T16:58:36Z
2011-12-26T12:47:18Z
2011-12-27T05:36:18Z
2009
 
Type Article
 
Identifier ANALYTICA CHIMICA ACTA, 632(1), 63-68
0003-2670
http://dx.doi.org/10.1016/j.aca.2008.10.062
http://dspace.library.iitb.ac.in/xmlui/handle/10054/6483
http://hdl.handle.net/10054/6483
 
Language en