Fabrication of pyrolytic carbon film electrodes by pyrolysis of methane on a machinable glass ceramic

Abstract

Pyrolytic carbon film electrodes were fabricated by low-temperature (850 o C) pyrolysis of methane onto a machinable glass ceramic material called Macor. As determined by cyclic voltammetry, good charge transfer characteristics were displayed by the electrodes without pretreatment. For the ferro/ferricyanide redox couple, heterogeneous rate constants on the order of 2×10 −3 cm/s were obtained