Positively Charged Surface Functionalised Carbon Nanoparticles as Binding Sites for Redox Active Species
|John Watkins , Ruth Lawrence , James E. Taylor , Stephen D. Bull , Frank Marken|
University of Bath, Department of Chemistry, Claverton Down, Bath BA2-7AY, United Kingdom
Emperor 2000 carbon nanoparticles are functionalised by a terminating sulfonate group which bares a negative charge. Work has previously been done using a binder mixture of chitosan with these carbon nanoparticles to create a stable film with good conductivity and more useful terminating amine groups.1,2
Scheme 1. Functionalisation of the positively charged carbon nanoparticles by a two step synthesis.
This work presents an alternative to the use of binders in which the carbon nanoparticles were directly re-functionalised by a two step synthesis shown in Scheme 1. This has lead to the creation of stable films showing a terminating amine group which can be evaporated onto electrodes and used to strongly bind negatively charged species such as indigo carmine without the need for binding agents.
(1) Rassaei, L.; Bonne, M. J.; Sillanpaa, M.; Marken, F. New J. Chem. 2008, 32, 1253.
(2) Rassaei, L.; Sillanpaa, M.; Marken, F. Electrochim. Acta 2008, 53, 5732.
Presentation: Short communication at SMCBS'2009 International Workshop, by John Watkins
See On-line Journal of SMCBS'2009 International Workshop
Submitted: 2009-09-03 20:00 Revised: 2009-09-03 20:16