In situ Controllable Growth of Prussian Blue Nanocubes on Reduced Graphene Oxide: Facile Synthesis and Their Application as Enhanced Nanoelectrocatalyst for H2O2 Reduction

被引:246
作者
Cao, Linyuan [1 ,2 ]
Liu, Yanlan [1 ,2 ]
Zhang, Baohua [1 ]
Lu, Lehui [1 ]
机构
[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Electroanalyt Chem, Changchun 130022, Peoples R China
[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
关键词
graphene; Prussian blue; nanocube; hydrogen peroxide; electrocatalyst; biosensor; WALLED CARBON NANOTUBES; ELECTROCHEMICAL PROPERTIES; ELECTROCATALYTIC ACTIVITY; FUNCTIONALIZED GRAPHENE; METHANOL OXIDATION; HYDROGEN-PEROXIDE; GRAPHITE OXIDE; FILMS; NANOPARTICLES; SURFACE;
D O I
10.1021/am100372m
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
As a single-atom thick carbon material with high surface area and conductivity, graphene provides an ideal platform for designing composite nanomaterials for high-performance electrocatalytic or electrochemical devices. Herein, we demonstrated a facile strategy for controllably growing high-quality Prussian blue nanocubes on the surface of reduced graphene oxide (PBNCs/rGO), which represents a new type of graphene/transition metal complex heterostructure. The merit of this method is that the composite nanomatrials could be produced directly from GO in an in situ wet-chemical reaction, where the reduction of GO and the deposition of PBNCs occur red simultaneously. The obtained composite nanomaterials were characterized by transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD); thermogravimetric analysis (TGA), Raman spectroscopy, and electrochemical techniques. It was found that uniform PBNCs with controlled size and good dispersion were directly grown on the surface of graphene nanosheets. Moreover, we also investigated the performance of PBNCs/rGO nanocomposites as amperometric sensor toward reduction of H2O2. Such a sensor showed a rapid and highly sensitive response to H2O2 with a low detection limit (45 nM), which might find promising applications in developing a new type of enzymeless biosensor.
引用
收藏
页码:2339 / 2346
页数:8
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