Carbon–carbon asymmetric aqueous capacitor by pseudocapacitive positive and stable negative electrodes

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Title: Carbon–carbon asymmetric aqueous capacitor by pseudocapacitive positive and stable negative electrodes
Authors: Nueangnoraj, Khanin | Ruiz-Rosas, Ramiro | Nishihara, Hirotomo | Shiraishi, Soshi | Morallon, Emilia | Cazorla-Amorós, Diego | Kyotani, Takashi
Research Group/s: Materiales Carbonosos y Medio Ambiente | Electrocatálisis y Electroquímica de Polímeros
Center, Department or Service: Universidad de Alicante. Departamento de Química Inorgánica | Universidad de Alicante. Departamento de Química Física | Universidad de Alicante. Instituto Universitario de Materiales
Keywords: Asymmetric aqueous capacitor | Zeolite-templated carbon | Pseudocapacitive positive electrode | KOH-activated carbon | Stable negative electrode
Knowledge Area: Química Inorgánica | Química Física
Issue Date: Feb-2014
Publisher: Elsevier
Citation: Carbon. 2014, 67: 792-794. doi:10.1016/j.carbon.2013.10.011
Abstract: An asymmetric aqueous capacitor was constructed by employing zeolite-templated carbon (ZTC) as a pseudocapacitive positive electrode and KOH-activated carbon as a stable negative electrode. The asymmetric capacitor can be operated with the working voltage of 1.4 V, and exhibits an energy density that is comparable to those of conventional capacitors utilizing organic electrolytes, thanks to the large pseudocapacitance of ZTC. Despite relatively thick electrode (0.2 mm) configuration, the asymmetric capacitor could be well operated under a current density of 500 mA g −1.
Sponsor: The authors would like to thank the Spanish MINECO, FEDER funds (Project MAT2010-15273 and PRI-PIBJP-2011-0766). This research was also supported by Strategic International Cooperative Program, Japan Science and Technology Agency.
ISSN: 0008-6223 (Print) | 1873-3891 (Online)
DOI: 10.1016/j.carbon.2013.10.011
Language: eng
Type: info:eu-repo/semantics/article
Peer Review: si
Publisher version:
Appears in Collections:INV - GEPE - Artículos de Revistas
INV - MCMA - Artículos de Revistas

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