New technique to control oxygen fugacity in high-temperature/ high-pressure experiments

Abstract

A new method to control oxygen fugacity in high-temperature/high-pressure experiments is proposed. In this method, use is made of two connected oxygen membrane cells which monitor and regulate the oxygen fugacity in the sample. As an example, all of the possible oxidation states in the Ni–O system were achieved. This method will provide a powerful tool in research on the chemistry of high-temperature/high-pressure environments such as the interior of the Earth.