Abstract
Hydrogen peroxide (H2O2) formation on Ketjen blackR EC300J, Vulcan XC-72R® and acetylene black in sulfuric acid solution was investigated. For this purpose, an ultra-microanalysis system for H2O2 was constructed. It was clarified that H2O2 was produced through an oxygen reduction reaction on these carbon materials. When oxidized acetylene blacks were employed, both the content of alcohol-like groups and the amounts of H2O2 produced increased. It is, therefore, surmised that the alcohol-like groups on acetylene blacks mainly contribute to H2O2 formation in a similar manner as the so-called “anthraquinone process”, the practical method for H2O2 production.
