title: Gas sensing using edge-plane pyrolytic-graphite electrodes: electrochemical reduction of chlorine.
abstract: The voltammetric responses of chlorine in aqueous acid solutions have been explored using different carbon-based electrodes. Edge-plane pyrolytic graphite has more electrochemical reversibility than glassy carbon, basal-plane pyrolytic graphite, or boron-doped diamond electrodes. A significant reduction in the over-potential is observed on the edge-plane pyrolytic-graphite electrode in contrast with the other carbon-based electrode substrates. These results suggest that edge-plane pyrolytic graphite can be optimally used as the working electrodes in Clark-cell devices for low-potential amperometric gas sensing of Cl2.
authors.affiliation: Physical and Theoretical Chemistry Laboratory, Oxford University, South Parks Road, Oxford, OX1 3QZ, UK.
authors.forename: Eleanor R
authors.initials: ER
authors.lastname: Lowe
authors.forename: Craig E
authors.initials: CE
authors.lastname: Banks
authors.forename: Richard G
authors.initials: RG
authors.lastname: Compton