Facile synthesis of monodisperse porous Cu2O nanospheres on reduced graphene oxide for non-enzymatic amperometric glucose sensing

In this work, uniform porous Cu2O nanospheres were facilely prepared using ionic liquid crystal [C16MMIm]Br) as a soft template. The Cu2O nanospheres were uniformly distributed on RGOs by ultrasonciation. The RGOs-Cu2O nanocomposites showed superior electrocatalytic activity toward glucose oxidation...

Full description

Saved in:
Bibliographic Details
Published in:Electrochimica acta 2014-01, Vol.115, p.103-108
Main Authors: Zhou, Dan-Ling, Feng, Jiu-Ju, Cai, Lin-Yi, Fang, Qin-Xue, Chen, Jian-Rong, Wang, Ai-Jun
Format: Article
Language:English
Subjects:
COMPOSITES
COPPER OXIDE
CUPROUS OXIDE
Electrical measurements
Glucose
Graphene
Ionic liquid crystal
Ionic liquids
MICROSTRUCTURES
Nanospheres
Nanostructure
OXIDES
PARTICLES
POROSITY
Porous nanospheres
Reduced graphene oxide
Strategy
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this work, uniform porous Cu2O nanospheres were facilely prepared using ionic liquid crystal [C16MMIm]Br) as a soft template. The Cu2O nanospheres were uniformly distributed on RGOs by ultrasonciation. The RGOs-Cu2O nanocomposites showed superior electrocatalytic activity toward glucose oxidation and were further applied for the construction of non-enzymatic glucose sensor with good performance. •Uniform porous Cu2O nanospheres were facilely prepared with the assistance of ionic liquid crystal [C16MMIm]Br.•The as-prepared Cu2O spheres were well dispersed on RGOs via ultrasonciation.•The RGOs-Cu2O nanocomposites showed excellent electrocatalytic activity toward glucose oxidation.•The as-constructed non-enzymatic sensor had a low detection limit, wide linear range, and fast response. In this work, well-defined monodisperse porous Cu2O nanospheres were facilely synthesized, using ionic liquid crystal 1-hexadecyl-2,3-dimethylimidazolium bromide ([C16MMIm]Br) as a soft template. The as-prepared Cu2O nanospheres were successfully anchored on the reduced graphene oxide nanosheets (RGOs) by simple ultrasonication. The RGOs-Cu2O nanocomposites showed high electrocatalytic activity toward glucose oxidation. Thus, a non-enzymatic amperometric glucose sensor was constructed with a wide linear range from 0.01 to 6mM, low detection limit of 0.05μM (S/N=3), high selectivity (185μAmM−1), and fast response (within 3s). This strategy opens a new facile and simple chemical route to prepare porous metal oxides supported on RGOs with novel properties.
ISSN:0013-4686
1873-3859
DOI:10.1016/j.electacta.2013.10.151