NDLI: Simple synthesis of nitrogen doped graphene/ordered mesoporous metal oxides hybrid architecture as high-performance electrocatalysts for biosensing study

Content Provider	Royal Society of Chemistry (RSC)
Author	Wang, Huan Cui, Mengjing Zhang, Yufan Sun, Yuena Cao, Bohan
Copyright Year	2016
Abstract	In the present work, a nitrogen doped graphene/ordered mesoporous metal oxides hybrid architecture (OMM-NGR) was prepared by a convenient procedure for the first time. During the preparation process, nitrogen doping, graphene reduction and ordered mesoporous metal oxides formation were successfully realized in one-step procedure. Transmission electron microscopy (TEM), energy-dispersive X-ray (EDX), elemental mapping, X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) were employed to characterize the as-prepared nanocomposites. The hybrid architecture enables a good combination of electrochemically active metal oxide nanoparticles and graphene sheets, leading to the electrocatalytic advantages of both nitrogen doped graphene and ordered mesoporous metal oxides. The electrocatalytic performance of the nanocomposites was studied by using glucose, L-cysteine, uric acid (UA) and H2O2 as redox probes. The performance of OMM (M: Co, Fe)-NGR is found to be greatly improved compared to NGR. Furthermore, electrocatalytic quantitative and qualitative detection performance of OMM (M: Co, Fe)-NGR have been studied in detail. OMM (M: Co, Fe)-NGR exhibits outstanding electrocatalytic activity towards the probes with low detection limits, high reproducibility, good selectivity and long stability. The present OMM (M: Co, Fe)-NGR is a promising nanomaterial for electrochemical biosensing application.
Starting Page	96963
Ending Page	96973
Page Count	11
File Format	HTM / HTML PDF
ISSN	20462069
Volume Number	6
Issue Number	99
Journal	RSC Advances
DOI	10.1039/c6ra19496f
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Cysteine Hydrogen peroxide Redox Urban area Photoemission spectroscopy Glucose Nitrogen X-ray crystallography Mesoporous material Mariamite Maronite Order Transmission electron microscopy Graphene Carboxylic acid Dopant Electrochemistry X-ray photoelectron spectroscopy
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering

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