Hierarchical Porous Carbon Materials Derived from Microwave-assisted Heating of Zeolitic Imidazolate Frameworks for Use as Supercapacitor Electrodes

J. Z. Zou, S. Y. Liu, H. L. Wu, Q. Luo, L. Huang, X. R. Zeng, J. Ma, Y. C. Yao, Q. Zhang, B. L. Peng

Abstract

A series of hierarchically structured nanoporous carbons are prepared via the direct carbonization of zeolitic imidazolate frameworks (ZIF-8) using a microwave-assisted heating method for the first time. The results indicate that the microwave carbonization temperature has a remarkable influence on the surface area and pore structure of the obtained porous carbons. ZIF-8 provides the carbon and the microporous structure. Significant numbers of mesopores and macropores emerge in the samples carbonized at high temperatures, indicating a clear difference from carbons prepared using traditional heating methods. The resulting porous carbons possess surface areas ranging from 384.4 to 947.5 m2 g-1 and pore volumes ranging from 0.17 to 0.49 cm3 g-1. For a carbonization temperature of 1000 °C, the porous carbon possesses the largest specific capacitance of 207.7 F g-1 at 0.1 A g-1 and the highest retention of 66.5% when the current density increases from 0.1 to 10 A g-1, which should be attributed to the proper hierarchical pore structure and the relatively high graphitization degree.

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Paper Citation


in Harvard Style

Zou J., Liu S., Wu H., Luo Q., Huang L., Zeng X., Ma J., Yao Y., Zhang Q. and Peng B. (2018). Hierarchical Porous Carbon Materials Derived from Microwave-assisted Heating of Zeolitic Imidazolate Frameworks for Use as Supercapacitor Electrodes.In Proceedings of the International Workshop on Materials, Chemistry and Engineering - Volume 1: IWMCE, ISBN 978-989-758-346-9, pages 571-583. DOI: 10.5220/0007441705710583


in Bibtex Style

@conference{iwmce18,
author={J. Z. Zou and S. Y. Liu and H. L. Wu and Q. Luo and L. Huang and X. R. Zeng and J. Ma and Y. C. Yao and Q. Zhang and B. L. Peng},
title={Hierarchical Porous Carbon Materials Derived from Microwave-assisted Heating of Zeolitic Imidazolate Frameworks for Use as Supercapacitor Electrodes},
booktitle={Proceedings of the International Workshop on Materials, Chemistry and Engineering - Volume 1: IWMCE,},
year={2018},
pages={571-583},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0007441705710583},
isbn={978-989-758-346-9},
}


in EndNote Style

TY - CONF

JO - Proceedings of the International Workshop on Materials, Chemistry and Engineering - Volume 1: IWMCE,
TI - Hierarchical Porous Carbon Materials Derived from Microwave-assisted Heating of Zeolitic Imidazolate Frameworks for Use as Supercapacitor Electrodes
SN - 978-989-758-346-9
AU - Zou J.
AU - Liu S.
AU - Wu H.
AU - Luo Q.
AU - Huang L.
AU - Zeng X.
AU - Ma J.
AU - Yao Y.
AU - Zhang Q.
AU - Peng B.
PY - 2018
SP - 571
EP - 583
DO - 10.5220/0007441705710583