Issue 1, 2015
From the journal:

Energy & Environmental Science

Nickel oxide encapsulated nitrogen-rich carbon hollow spheres with multiporosity for high-performance pseudocapacitors having extremely robust cycle life†

Se Yun Kim,‡§a   Hyung Mo Jeong,‡a   Jun Ho Kwon,‡a   Il Woo Ock,a   Won Hyuk Suh,bc   Galen D. Stucky*b  and  Jeung Ku Kang*a  

* Corresponding authors

a Department of Materials Science & Engineering, Graduate School of Energy, Environment, Water, and Sustainability (EEWS), KAIST, Daejeon 305-701, Republic of Korea
E-mail: jeung@kaist.ac.kr
Fax: +82-42-350-1780
Tel: +82-42-350-3378

b Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA 93106, USA
E-mail: stucky@chem.ucsb.edu

c Bioengineering Department, Temple University, Philadelphia 19122, USA

Abstract

We report nickel oxide encapsulated nitrogen-rich carbon hollow spheres with multiporosity, where micropores increase the number of active sites to store redox ions and mesopores enhance the ionic diffusivity of encapsulated nickel oxide, which lead to high capacitance and robust cycle life. Moreover, a high-performance full capacitor showing excellent energy and power densities is realized.

Graphical abstract: Nickel oxide encapsulated nitrogen-rich carbon hollow spheres with multiporosity for high-performance pseudocapacitors having extremely robust cycle life

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Article information

DOI
https://doi.org/10.1039/C4EE02897J
Article type
Communication
Submitted
12 Sep 2014
Accepted
07 Oct 2014
First published
08 Oct 2014

Energy Environ. Sci., 2015,8, 188-194

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Nickel oxide encapsulated nitrogen-rich carbon hollow spheres with multiporosity for high-performance pseudocapacitors having extremely robust cycle life

S. Y. Kim, H. M. Jeong, J. H. Kwon, I. W. Ock, W. H. Suh, G. D. Stucky and J. K. Kang, Energy Environ. Sci., 2015, 8, 188 DOI: 10.1039/C4EE02897J

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