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Electronic enhancement of hybrid specific capacity of carbon nanotube/bone charcoal composite with Ag nanoparticle decoration

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Autor(es):
Matsubara, Elaine Y. ; Takahashi, Giuliana H. ; Macedo, Nadia G. ; Gunnella, Roberto ; Mauricio Rosolen, J.
Número total de Autores: 5
Tipo de documento: Artigo Científico
Fonte: JOURNAL OF ELECTROANALYTICAL CHEMISTRY; v. 765, p. 7-pg., 2016-03-15.
Resumo

We show a significant enhancement of specific capacity of a hybrid composite,prepared with carbon nanotube (CNT), bone charcoal and Ag nanoparticle (NP) constituents which may be explained by a mechanism involving the electronic coupling of Fermi levels of the NP and defective CNT. This electronic coupling leads to an additional specific capacity which is given by (C(NP)xC(CNT))/(C-NP + C-CNT), where C-NP, and C-CNT are the Li specific capacity of NP and CNT constituents, respectively. As a result, the specific capacity of defective carbon nanotube can be increased by twice with incorporation of only 0.8 wt.% of Ag NPs. (C) 2015 Elsevier B.V. All rights reserved. (AU)

Processo FAPESP: 10/07681-5 - Desenvolvimento e estudo de materiais micro/nanoestruturados de interesse para baterias de íons de lítio e capacitores
Beneficiário:Jose Mauricio Rosolen
Modalidade de apoio: Auxílio à Pesquisa - Regular