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JOURNAL OF THE ELECTROCHEMICAL SOCIETY · 2014 ·Vol. 161 ·期 9 ·H573 · IF 2.859

Electrocatalytic Copolymerization of Aniline and m-aminophenol by Graphene and the Electrochemical Removal of Cr(VI) by the Copolymer

Yong Kong,Ting Zhou,Yong Qin,Yongxin Tao,Yong Wei

Graphene plays a decisive role in the electrocatalytic copolymerization of aniline and m-aminophenol. The electrochemical activity of the obtained copolymer has an improved pH dependence compared with polyaniline. The results of Fourier transform infrared spectroscopy, electrochemical quartz crystal microbalance, atomic force microscope, and ultraviolet-visible spectroscopy reveal the ion exchange behaviors of the copolymer, indicating that it could be a potential candidate for the effective electrochemical removal of toxic Cr(VI) from industrial wastewater.

CAS / MDL: 591-27-5 62-53-3

研究领域: 材料科学 · 环境科学 · 电化学

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SYNTHETIC METALS · 2014 · IF 2.222

Zinc ions doped poly(aniline-co-m-aminophenol) for high-performance supercapacitor

Ting Zhou,Yong Qin,Juan Xu,Yongxin Tao,Mohong Lu,Yong Kong

A simple method to synthesize Zn 2+ doped poly(aniline- co - m -aminophenol) (PANMA), Zn-PANMA, for supercapacitors is reported. Capacitive behaviors of the copolymer based supercapacitor in 1 M H 2 SO 4 electrolyte were examined by electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV), and galvanostatic charge/discharge. The morphological characteristics of Zn-PANMA and PANMA doped with Fe 3+ and Cu 2+ were investigated by field emission scanning microscopy (FESEM), explaining the different capacitive behaviors of these transition metal ions doped PANMA. A specific capacitance of Zn-PANMA as high as 631 F g −1 was achieved at a current density of 0.5 A g −1 , due to the enhancement of the electrochemical properties of the copolymer by Zn 2+ doping. Moreover, the specific capacitance still remained 71.7% after cycling for 800 times, exhibiting a good cycling performance and structure stability of Zn-PANMA.

CAS / MDL: 591-27-5 62-53-3

研究领域: 材料科学 · 电化学 · 能量存储

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Electrocatalytic Copolymerization of Aniline and m-aminophenol by Graphene and the Electrochemical Removal of Cr(VI) by the Copolymer

Zinc ions doped poly(aniline-co-m-aminophenol) for high-performance supercapacitor