期刊
POLYMER BULLETIN
卷 79, 期 9, 页码 7443-7458出版社
SPRINGER
DOI: 10.1007/s00289-021-03837-0
关键词
Support material; Catalyst; Polyaniline; Graphene oxide; Doping
资金
- Science and Technology Foundation of Mongolia [ShuSs-2018/12]
The study demonstrates that Pani composites doping with GO are a suitable way to obtain an alternative catalytic support material for electrodes. Different morphologies of the composites were studied, with the material containing 1 wt% graphene oxide exhibiting better performance.
The aim of this study is to demonstrate that Pani composites doping with GO are a suitable way to obtain an alternative catalytic support material for electrodes. As a result of polyaniline (Pani) support electrode with a large surface area, we observed the improvement in its electrochemical capacitance and reduction in the band gap of the material. The Pani electrodes were doped with graphene oxide (Pani/GO) and obtained by an interfacial polymerization method that has two different morphologies: nano- granular-PaniNP and fiber-PaniNF. We studied both different morphologies and the correlation between their structures and electrochemical properties. The prepared composite Pani/graphene's were characterized by field emission scanning electron microscopy, ultraviolet-visible absorption spectroscopy, Fourier transform infrared, and BET, X-ray diffraction analysis and electrochemical measurements through cyclic voltammetry. Depending on the content of graphene oxide (1 wt% GO) that exhibits smaller band gap (2.82 eV), a larger specific surface area (88 m(2)/g) and a higher electrochemical capacitance. Furthermore, PaniNF/GO composite with 6 wt% GO concentration shows a smaller pore size, a smaller specific surface area and a higher electrochemical capacitance. The results suggest that Pani composites doping with GO are a suitable way to obtain an alternative catalytic support material for electrodes.
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