Boron-doped diamond microdisc arrays: electrochemical characterisation and their use as a substrate for the production of microelectrode arrays of diverse metals (Ag, Au, Cu)via electrodeposition
Simm, Andrew O.; Banks, Craig E.; Ward-Jones, Sarah; Davies, Trevor J.; Lawrence, Nathan S.; Jones, Timothy G. J.; Jiang, Li; Compton, Richard G.; Simm Andrew O.; Physical and Theoretical Chemistry Laboratory, University of Oxford; Banks Craig E.; Physical and Theoretical Chemistry Laboratory, University of Oxford; Ward-Jones Sarah; Physical and Theoretical Chemistry Laboratory, University of Oxford; Davies Trevor J.; Physical and Theoretical Chemistry Laboratory, University of Oxford; Lawrence Nathan S.; Schlumberger Cambridge Research, High Cross; Jones Timothy G. J.; Schlumberger Cambridge Research, High Cross; Jiang Li; Schlumberger Cambridge Research, High Cross; Compton Richard G.; Physical and Theoretical Chemistry Laboratory, University of Oxford
Журнал:
Analyst
Дата:
2005
Аннотация:
A novel boron-doped diamond (BDD) microelectrode array is characterised with electrochemical and atomic force microscopic techniques. The array consists of 40 micron-diameter sized BDD discs which are separated by 250 microns from their nearest neighbour in a hexagonal arrangement. The conducting discs can be electroplated to produce arrays of copper, silver or gold for analytical purposes in addition to operating as an array of BDD-microelectrodes. Proof-of-concept is shown for four separate examples; a gold plated array for arsenic detection, a copper plated array for nitrate analysis, a silver plated array for hydrogen peroxide monitoring and last, cathodic stripping voltammetry for lead at the bare BDD-array.
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