Uniformly embedded metal oxide nanoparticles in vertically aligned carbon nanotube forests as pseudocapacitor electrodes for enhanced energy storage.
Nano Lett
; 13(8): 3524-30, 2013 Aug 14.
Article
em En
| MEDLINE
| ID: mdl-23898882
ABSTRACT
Carbon nanotube (CNT) forests were grown directly on a silicon substrate using a Fe/Al/Mo stacking layer which functioned as both the catalyst material and subsequently a conductive current collecting layer in pseudocapacitor applications. A vacuum-assisted, in situ electrodeposition process has been used to achieve the three-dimensional functionalization of CNT forests with inserted nickel nanoparticles as pseudocapacitor electrodes. Experimental results have shown the measured specific capacitance of 1.26 F/cm(3), which is 5.7 times higher than pure CNT forest samples, and the oxidized nickel nanoparticle/CNT supercapacitor retained 94.2% of its initial capacitance after 10,000 cyclic voltammetry tests.
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Base de dados:
MEDLINE
Idioma:
En
Revista:
Nano Lett
Ano de publicação:
2013
Tipo de documento:
Article
País de afiliação:
Estados Unidos