期刊
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
卷 382, 期 4, 页码 1169-1174出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s00216-005-3223-3
关键词
edge-plane pyrolytic graphite; chlorine; amperometric detection; gas sensing
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 overpotential 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 Cl-2.
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