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

Abstract

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

Watkins_scheme.png

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.

 

Related papers
  1. Impedance Methods in Electrochemistry
  2. Redox Reactivity of Methylene Blue in the Pores of UMCM-1 Metal-Organic Frameworks
  3. Carbon Nanoparticle Surface Modification for Sensor Development
  4. Ion Association Effects in Cellulose – Poly-(Diallyldimethylammonium) Reassembled Membranes Immersed in Acetonitrile
  5. Conduction in Nanoparticle Assemblies and Mesoporous Films
  6. Triple Phase Boundary Photo-Voltammetry: Resolving Rhodamine B Reactivity in 4-(3-Phenylpropyl)-Pyridine Microdroplets
  7. Carbon Dioxide Sensing Systems Based On Processes At Triple Phase Boundary Interfaces
  8. Electrochemical behaviour of carbonised cellulose nanofibril films on the ITO electrode surface
  9. MoSe2 Substrates for the Electrodeposition of CISe Semiconductor Films
  10. Silver Nanoparticle Catalysed NO3- Reduction Characterised with a Hydrodynamic Generator-Collector SPCE System
  11. Determination of Dopamine in Presence of Ascorbate in Ultrathin Carbon Nanoparticle Composite Film Electrodes
  12. Driving ion transfer across the toluene (trihexyl(tetradecyl)-phosphonium tris(pentafluoroethyl)trifluoro-phosphate) | water (electrolyte) interface with the MnTPP(III/II) redox system
  13. Electrocatalytic Sulphite Detection at a Liquid-Liquid-Solid Three-Phase Boundary Electrode Sensors
  14. Electrochemical Processes at Electrodes in Microwave Fields
  15. Liquid-Liquid Ion-Transfer Electrochemistry at Stationary and at Flowing Triple Phase Boundaries
  16. Microwave-assisted Capillary Electrophoresis with Electrochemical Detection
  17. Analysis of Chlorobenzenes in Environmental Water Samples using Microwave-Assisted with Ionic-Liquids Liquid-Phase Microextraction
  18. Electrochemical reactivity of proteins immobilised in mesoporous titania
  19. New electrode surfaces for solid | liquid | liquid triple phase boundary electrochemistry
  20. Ion transfer electrodes based on carbon nanofibers embedded in silicate film modified with room temperature ionic liquid
  21. Nanoobjects embedded in silicate films for biphasic electrodes
  22. Electrochemical Processes in Mesoporous TiO2 Phytate Films

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