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AuthorTajabadi, M.T.
AuthorSookhakian, M.
AuthorZalnezhad, E.
AuthorYoon, G.H.
AuthorHamouda, A.M.S.
AuthorAzarang, Majid
AuthorBasirun, W.J.
AuthorAlias, Y.
Available date2016-09-21T08:13:32Z
Publication Date2016-11
Publication NameApplied Surface Science
Identifierhttp://dx.doi.org/10.1016/j.apsusc.2016.06.045
CitationTajabadi, M.T., Sookhakian, M., Zalnezhad, E., Yoon, G.H., Hamouda, A.M.S., Azarang, M., Basirun, W.J., Alias, Y. "Electrodeposition of flower-like platinum on electrophoretically grown nitrogen-doped graphene as a highly sensitive electrochemical non-enzymatic biosensor for hydrogen peroxide detection" (2016) Applied Surface Science, 386, pp. 418-426.
ISSN0169-4332
URIhttp://hdl.handle.net/10576/4746
AbstractAn efficient non-enzymatic biosensor electrode consisting of nitrogen-doped graphene (N-graphene) and platinum nanoflower (Pt NF) with different N-graphene loadings were fabricated on indium tin oxide (ITO) glass using a simple layer-by-layer electrophoretic and electrochemical sequential deposition approach. N-graphene was synthesized by annealing graphene oxide with urea at 900 degree C. The structure and morphology of the as-fabricated non-enzymatic biosensor electrodes were determined using X-ray diffraction, field emission electron microscopy, transmission electron microscopy, Raman and X-ray photoelectron spectra. The as-fabricated Pt NF-N-graphene-modified ITO electrodes with different N-graphene loadings were utilized as a non-enzymatic biosensor electrode for the detection of hydrogen peroxide (H2O2). The behaviors of the hybrid electrodes towards H2O2 reduction were assessed using chronoamperometry, cyclic voltammetry and electrochemical impedance spectroscopy analysis. The Pt NF-N-graphene-modified ITO electrode with a 0.05 mg ml-1 N-graphene loading exhibited the lowest detection limit, fastest amperometric sensing, a wide linear response range, excellent stability and reproducibility for the non-enzymatic H2O2 detection, due to the synergistic effect between the electrocatalytic activity of the Pt NF and the high conductivity and large surface area of N-graphene.
SponsorHigh Impact Research MoE Grant UM.C/625/1/HIR/MoE/SC/04 from the Ministry of Education Malaysia, UMRG Program RP012A-14SUS, RP038C-15HTM, Grand Challenge GC001C-14SBS and University Malaya Centre for Ionic Liquids (UMCiL). Global Frontier R&D Program on Center for Wave Energy Control based on Metamaterials funded by the National Research Foundation under the Ministry of Science, ICT & Future Planning, Korea (No. 2014063711).
Languageen
PublisherElsevier
SubjectNitrogen doped graphene
SubjectElectrophoretic deposition
SubjectPlatinum
SubjectElectrodeposition
SubjectHydrogen peroxide
SubjectBiosensor
TitleElectrodeposition of flower-like platinum on electrophoretically grown nitrogen-doped graphene as a highly sensitive electrochemical non-enzymatic biosensor for hydrogen peroxide detection
TypeArticle
Pagination418-426
Volume Number386


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