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Preparation of hollow mesoporous carbon spheres and their performances for electrochemical applications

Ariyanto T, Zhang G, Kern A, Etzold B (2018)

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Publication Type: Conference contribution

Publication year: 2018

Journal

Publisher: Institute of Physics Publishing

Book Volume: 316

Conference Proceedings Title: IOP Conference Series: Materials Science and Engineering

Event location: Nusa Dua, Bali, IDN

DOI: 10.1088/1757-899X/316/1/012018

Abstract

Hollow carbon materials have received intensive attention for energy storage/conversion applications due to their attractive properties of high conductivity, high surface area, large void and short diffusion pathway. In this work, a novel hollow mesoporous material based on carbide-derived carbon (CDC) is presented. CDC is a new class of carbon material synthesized by the selective extraction of metals from metal carbides. With a two-stage extraction procedure of carbides with chlorine, firstly hybrid core-shell carbon particles were synthesized, i.e. mesoporous/graphitic carbon shells covering microporous/amorphous carbon cores. The amorphous cores were then selectively removed from particles by a careful oxidative treatment utilizing its low thermal characters while the more stable carbon shells remained, thus resulting hollow particles. The characterization methods (e.g. N2 sorption, Raman spectroscopy, temperature-programmed oxidation and SEM) proved the successful synthesis of the aspired material. In electric double-layer capacitor (EDLC) testing, this novel hollow core material showed a remarkable enhancement of EDLC's rate handling ability (75% at a high scan rate) with respect to an entirely solid-mesoporous material. Furthermore, as a fuel cell catalyst support the material showed higher Pt mass activity (a factor of 1.8) compared to a conventional carbon support for methanol oxidation without noticeably decreasing activity in a long-term testing. Therefore, this carbon nanostructure shows great promises as efficient electrode materials for energy storage and conversion systems.

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How to cite

APA:

Ariyanto, T., Zhang, G., Kern, A., & Etzold, B. (2018). Preparation of hollow mesoporous carbon spheres and their performances for electrochemical applications. In IOP Conference Series: Materials Science and Engineering. Nusa Dua, Bali, IDN: Institute of Physics Publishing.

MLA:

Ariyanto, T., et al. "Preparation of hollow mesoporous carbon spheres and their performances for electrochemical applications." Proceedings of the 15th International Conference on Quality in Research, QiR 2017, Nusa Dua, Bali, IDN Institute of Physics Publishing, 2018.

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