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


Autoria(s): Nueangnoraj, Khanin; Ruiz-Rosas, Ramiro; Nishihara, Hirotomo; Shiraishi, Soshi; Morallon, Emilia; Cazorla-Amorós, Diego; Kyotani, Takashi
Contribuinte(s)

Universidad de Alicante. Departamento de Química Inorgánica

Universidad de Alicante. Departamento de Química Física

Universidad de Alicante. Instituto Universitario de Materiales

Materiales Carbonosos y Medio Ambiente

Electrocatálisis y Electroquímica de Polímeros

Data(s)

23/05/2014

23/05/2014

01/02/2014

Resumo

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.

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.

Identificador

Carbon. 2014, 67: 792-794. doi:10.1016/j.carbon.2013.10.011

0008-6223 (Print)

1873-3891 (Online)

http://hdl.handle.net/10045/37286

10.1016/j.carbon.2013.10.011

Idioma(s)

eng

Publicador

Elsevier

Relação

http://dx.doi.org/10.1016/j.carbon.2013.10.011

Direitos

info:eu-repo/semantics/openAccess

Palavras-Chave #Asymmetric aqueous capacitor #Zeolite-templated carbon #Pseudocapacitive positive electrode #KOH-activated carbon #Stable negative electrode #Química Inorgánica #Química Física
Tipo

info:eu-repo/semantics/article