期刊
JOURNAL OF MATERIALS CHEMISTRY
卷 22, 期 27, 页码 13619-13624出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2jm32479b
关键词
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资金
- NNSF of China [20976189, 21071153]
- Hunan NSF of China [10JJ2004]
- Specialized Research Fund for the Doctoral Program of Higher Education of China [20090162120012]
- SRF for the ROCS, SEM
- Fundamental Research Funds for the Central Universities [2011JQ024]
We report a novel and facile synthesis of a high-quality graphene oxide (GO)-polyaniline (PANI) composite by in situ polymerization suitable for supercapacitor application. Unlike the use of the edged carboxyl groups of graphene sheets as linkers, the current work makes the most of the ample oxygenated groups on the basal plane of graphene sheets to combine with the amine nitrogens of the PANI chain. This is tactically realized by a carboxyl-functionalized process of GO with oxalic acid treatment prior to the combination. The as-constructed carboxyl-functionalized graphene oxide-polyaniline (CFGO-PANI) composite was roundly characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier-transformed infrared spectrometry (FTIR), Raman spectrometry, and thermogravimetric analysis (TGA), and a stable, highly efficient charge-transfer configuration was disclosed and confirmed. The fabricated electrode composed of this CFGO-PANI material showed an excellent electrochemical capacitance performance with aqueous H2SO4 electrolytes.
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