Use este identificador para citar ou linkar para este item: http://www.repositorio.ufop.br/handle/123456789/8513
Título: Carbon nanotube/dendrimer hybrids as electrodes for supercapacitors.
Autor(es): Trigueiro, João Paulo Campos
Figueiredo, Rute Cunha
Rojo Marcos, Francisco Javier
Viana, Renato Márcio Ribeiro
Schnitzler, Mariane Cristina
Silva, Glaura Goulart
Palavras-chave: Glycodendrimers
Ionic liquid
Data do documento: 2016
Referência: TRIGUEIRO, J. P. C. et al. Carbon nanotube/dendrimer hybrids as electrodes for supercapacitors. Journal of Solid State Electrochemistry, v. 20, p. 1991-2000, 2016. Disponível em: <https://link.springer.com/article/10.1007/s10008-016-3205-8>. Acesso em: 05 ago. 2017.
Resumo: Carbon nanotubes (CNTs) were surface-modified by a glycodendrimer with four glucose units (4-Gl). Electrodes for supercapacitors based on CNT/4-Gl hybrids were used for the first time in this work. The preparation was conducted by casting eight alternating bilayers of two types of modified multiwalled carbon nanotubes (MWCNTs), MWCNT-COOH/4-Gl and MWCNT-NH2/4- Gl, from aqueous dispersions (pH= 6). The electrodes showed good cohesion, dimensional stability, and a homogeneous nanoscale structure because the carbon nanotube/dendrimer layers interact electrostatically. The supercapacitor was stacked with a separator embedded with a 1-ethyl-3- methylimidazolium bis(trifluoromethylsulfonyl)imide ionic liquid electrolyte. The device with 20 wt% of dendrimer with respect to CNT content in the electrodes achieved a remarkable increase of 600 % in capacitance compared with the capacitance without the dendrimer.
URI: http://www.repositorio.ufop.br/handle/123456789/8513
Link para o editor: https://link.springer.com/article/10.1007/s10008-016-3205-8
ISSN: 14330768 
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