Porous Co3O4 hollow nanododecahedra for nonenzymatic glucose biosensor and biofuel cell.
Biosens Bioelectron
; 81: 46-53, 2016 Jul 15.
Article
em En
| MEDLINE
| ID: mdl-26918617
ABSTRACT
Cobalt oxide hollow nanododecahedra (Co3O4-HND) is synthesized by a facile thermal transformation of cobalt-based metal-organic framework (Co-MOF, ZIF-67) template. The morphology and properties of the Co3O4-HND are characterized by a set of techniques, including transmission electron microscope (TEM), powder X-ray diffraction (XRD), scanning electron microscope (SEM) and Brunner-Emmet-Teller (BET). When tested as a non-enzymatic electrocatalyst for glucose oxidation reaction, the Co3O4-HND exhibits a high activity and shows an outstanding performance for determining glucose with a wide window of 2.0µM to 6.06mM, a high sensitivity of 708.4µAmM(-1)cm(-2), a low detection limit of 0.58µM (S/N=3), and fast response time(<2s). Based on the nonenzymatic oxidation of glucose, Co3O4-HND could be served as an attractive non-enzyme and noble-metal-free electrocatalyst in glucose fuel cell (GFC) due to its excellent electrochemical properties, low cost and facile preparation.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Óxidos
/
Fontes de Energia Bioelétrica
/
Técnicas Biossensoriais
/
Cobalto
/
Nanoestruturas
/
Glucose
Idioma:
En
Revista:
Biosens Bioelectron
Assunto da revista:
BIOTECNOLOGIA
Ano de publicação:
2016
Tipo de documento:
Article