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A simple method to prepare carbon nanotubes from sunflower seed hulls and sago and their application in supercapacitor

H.Y. Zhang (Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, Department of Macromolecular Material and Engineering, School of Chemistry and Chemical Engineering, Heilongjiang University, Harbin PR China)
H.J. Niu (Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, Department of Macromolecular Material and Engineering, School of Chemistry and Chemical Engineering, Heilongjiang University, Harbin, PR China)
Y.M. Wang (Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, Department of Macromolecular Material and Engineering, School of Chemistry and Chemical Engineering, Heilongjiang University, Harbin, PR China)
C. Wang (Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, Department of Macromolecular Material and Engineering, School of Chemistry and Chemical Engineering, Heilongjiang University, Harbin PR China)
X.D. Bai, (Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, Department of Macromolecular Material and Engineering, School of Chemistry and Chemical Engineering, Heilongjiang University, Harbin PR China)
S. Wang (Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, Department of Macromolecular Material and Engineering, School of Chemistry and Chemical Engineering, Heilongjiang University, Harbin PR China)
Wen Wang (Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, Department of Macromolecular Material and Engineering, School of Chemistry and Chemical Engineering, Heilongjiang University, Harbin, PR China)

Pigment & Resin Technology

ISSN: 0369-9420

Article publication date: 5 January 2015

Abstract

Purpose

The purpose of this paper was to provide a simple method for the preparation of carbon nanotubes (CNTs) by pyrolysing sunflower seed hulls and sago and to evaluate the application of such CNTs in supercapacitors.

Design/methodology/approach

The CNTs were obtained by pyrolysing sunflower seed hulls and sago at 800°C. The prepared CNTs were studied by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, cyclic voltammograms, galvanostatic charge and discharge and electrochemical impedance spectra methods.

Findings

The CNTs had large surface areas as determined by the methylene blue method and the Brunauer – Emmett – Teller method. And the CNTs that were prepared by pyrolysing the natural sunflower seed hulls (denoted as CNTs-1) and sago (denoted as CNTs-2) had capacitances of 86.9 F/g and 26.7 F/g, respectively.

Research limitations/implications

The capacitances of CNTs can be further improved.

Practical implications

The exceptional electronic and mechanical properties of CNTs prepared lend the CNTs to diverse applications including electrocatalysts, hydrogen storage, photovoltaic devices actuators, energy storage, field-emitting flat panel displays and composites.

Originality/value

Currently, CNTs have not yet been used in the industry at a mass production scale due to high costs associated. The outcomes of the study reported in this article could provide a convenient method in aid of industrialisation of the production of CNTs.

Keywords

Acknowledgements

The authors are grateful of the support of the National Science Foundation of China (Grant No. 51373049, 51372055, 51273056, 21372067, 51303045), Doctoral Fund of Ministry of Education of China (20132301120004, 20132301110001), Foundation of Heilongjiang Education Bureau (12531504).

Citation

Zhang, H.Y., Niu, H.J., Wang, Y.M., Wang, C., Bai, , X.D., Wang, S. and Wang, W. (2015), "A simple method to prepare carbon nanotubes from sunflower seed hulls and sago and their application in supercapacitor", Pigment & Resin Technology, Vol. 44 No. 1, pp. 7-12. https://doi.org/10.1108/PRT-10-2013-0090

Publisher

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Emerald Group Publishing Limited

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