The Determination of Methanol Using an Electrolytically Fabricated Nickel Microparticle Modified Boron Doped Diamond Electrode

Journal article

A nickel modified boron doped diamond (Ni-BDD) electrode and nickel foil electrode were used in the determination of methanol in alkaline solutions. The Ni-BDD electrode was electrodeposited from a 1 mM Ni(NO3)2 solution (pH 5), followed by repeat cycling in KOH. Subsequent analysis utilised the Ni(OH)2/NiOOH redox couple to electrocatalyse the oxidation of methanol. Methanol was determined to limits of 0.3 mM with a sensitivity of 110 nA/mM at the Ni-BDD electrode. The foil electrode was less sensitive achieving a limit of 1.6 mM and sensitivity of 27 nA/mM. SEM analysis of the electrodes found the Ni-BDD to be modified by a quasi-random microparticle array. © 2010 Wiley-VCH Verlag GmbHandCo. KGaA, Weinheim.

Authors: Toghill, K; Xiao, L; Stradiotto, N; Compton, R

• Publication status: Published
• Journal: ELECTROANALYSIS
• Volume: 22
• Issue: 5
• Pages: 491-500
• Publication date: 2010-03-01
• DOI: 10.1002/elan.200900523
• EISSN: 1521-4109
• ISSN: 1040-0397
• Language: English
• Keywords: Boron doped diamond; Alcohol oxidation; Nickel microparticles; Fuel cells; Electrocatalysis