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https://hdl.handle.net/10316/27093
Título: | Chemically modified graphene and nitrogen-doped graphene: electrochemical characterisation and sensing applications | Autor: | Prathish, Krishna P. Barsan, Madalina M. Geng, Dongsheng Sun, Xueliang Brett, Christopher M. A. |
Palavras-chave: | Nitrogen doped graphene; Functionalised graphene; Composite materials; Polymer-modified electrodes; Enzyme cofactors | Data: | 30-Dez-2013 | Editora: | Elsevier | Citação: | PRATHISH,Krishna P. [et al.] - Chemically modified graphene and nitrogen-doped graphene: Electrochemical characterisation and sensing applications. "Electrochimica Acta". ISSN 0013-4686. Vol. 114 (2013) p. 533-542 | Título da revista, periódico, livro ou evento: | Electrochimica Acta | Volume: | 114 | Resumo: | Functionalised graphene (G) and nitrogen doped graphene (NG) nanomaterials are excellent candidates for electrocatalytic sensing of biomolecules and for developing biosensors, due to their unique physicochemical and electronic properties. Electrochemical characterisation and comparison of basic or acidic functionalised G and NG has been carried out, as well as of composite materials based on NG with the conducting polymer poly(3,4-ethylenedioxythiophene) (PEDOT) and the redox polymer poly(neutral red) by cyclic voltammetry and electrochemical impedance spectroscopy. Electroactive areas and heterogeneous electron transfer constant, of the GCE modified with the graphene derivatives have been evaluated, in order to choose the best material for electrode modification. The NG modified GCE enabled excellent electrocatalytic regeneration of the enzyme cofactors β-nicotinamide adenine dinucleotide (NADH) and flavin adenine dinucleotide (FAD), underlining the applicability of NG for the development of new sensitive biosensors. | URI: | https://hdl.handle.net/10316/27093 | ISSN: | 0013-4686 | DOI: | 10.1016/j.electacta.2013.10.080 | Direitos: | openAccess |
Aparece nas coleções: | FCTUC Química - Artigos em Revistas Internacionais |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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Chemically Modified Graphene and Nitrogen-doped Graphene.pdf | 2.05 MB | Adobe PDF | Ver/Abrir |
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