Preparation and Electrochemical Properties of Monthmorillonite-supported Nitrogen-doped Porous Carbon@Polyaniline Composites

doi:10.11944/j.issn.1000-0518.2016.12.160056

Chinese Journal of Applied Chemistry ›› 2016, Vol. 33 ›› Issue (12): 1448-1454.DOI: 10.11944/j.issn.1000-0518.2016.12.160056

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Preparation and Electrochemical Properties of Monthmorillonite-supported Nitrogen-doped Porous Carbon@Polyaniline Composites

REN Zhenbo,YING Zongrong(),LIU Xindong,WAN Hui

School of Chemical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China

Received:2016-02-02 Accepted:2016-03-30 Published:2016-12-05 Online:2016-12-05
Contact: YING Zongrong

Abstract

Abstract:

The composites of polyaniline(PANI) coating monthmorillonite-supported nitrogen-doped carbon(NMC) were prepared by in situ polymerization of aniline upon NMC in the hydrochloric acid(HCl) solution and the mixed acid solution composed of HCl acid and D-camphorsulfonic acid(DCSA). Fourier transform infrared spectroscopy, X-ray diffraction, and scanning electron microscopy were employed to investigate the effect of the doping acid on the crystallization property. NMC@PANI doped with HCl has a short stick morphology, while one doped with HCl/DCSA exhibits a granular and flaked morphology and its crystallization degree is higher than that of the former. NMC@PANI doped with HCl/DCSA has a specific capacitance of 412.5 F/g at 0.5 A/g, which is increased by 24.1% compared to that of NMC@PANI doped with HCl, and shows a lower equivalent series resistance and charge transfer resistance. However, the capacitance of NMC@PANI doped with HCl retains 81.4% at large charge/discharge current, higher than 58.4% of one doped with HCl/DCSA.

Key words: monthmorillonite, nitrogen-doped porous carbon, polyaniline, hydrochloric acid, D-camphorsulfonic acid, supercapacitor

REN Zhenbo, YING Zongrong, LIU Xindong, WAN Hui. Preparation and Electrochemical Properties of Monthmorillonite-supported Nitrogen-doped Porous Carbon@Polyaniline Composites[J]. Chinese Journal of Applied Chemistry, 2016, 33(12): 1448-1454.

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Preparation and Electrochemical Properties of Monthmorillonite-supported Nitrogen-doped Porous Carbon@Polyaniline Composites

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