One-step molybdate ion assisted electrochemical synthesis of α-MoO3-decorated graphene sheets and its potential applications

被引：48

作者：

Hu, Jiangbo ^{[1
]}

Ramadan, Anas ^{[1
]}

Luo, Fang ^{[1
]}

Qi, Bin ^{[1
]}

Deng, Xiaojiao ^{[1
]}

Chen, Ji ^{[2
]}

机构：

[1] NE Normal Univ, Dept Chem, Key Lab Polyoxometalate Sci, Changchun 130024, Peoples R China

[2] Chinese Acad Sci, Changchun Inst Appl Chem, Changchun 130022, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2011年 / 21卷 / 38期

关键词：

OXIDE; FILMS; TRANSPARENT; GRAPHITE; SUPERCAPACITOR; EXFOLIATION; PERFORMANCE; CAPACITY;

D O I：

10.1039/c1jm12035b

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We introduce an easy and scalable approach to synthesize alpha-MoO3-decorated graphene sheets from a graphite electrode by molybdate-assisted electrochemical exfoliation. The samples were examined by transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), Fourier transformation infrared spectroscopy (FT-IR), Raman spectroscopy, X-ray diffraction and thermogravimetric analysis. TEM analysis shows that the exfoliated material consists of mainly a few-layers of graphene and the results of XPS, FT-IR and Raman confirmed the presence of alpha-MoO3 on the graphene sheets. Moreover, XPS spectra indicate that the content of surface oxygen groups on the graphene sheets is lower than that on graphite oxide. After being heat-treated at low-temperature (200 degrees C), samples exhibited high conductivity (up to 5367 S m(-1)) and good specific capacitance (up to 86.3 F g(-1)) when tested as electrode materials in a supercapacitor.

引用

页码：15009 / 15014

页数：6

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