Teflon hydrogen diffusion membranes

At temperatures below 100°C, Eh values are usually measured directly using electrochemical techniques. At elevated temperatures, however, it is usually more convenient to measure hydrogen pressures in equilibrium with the system being investigated. The Teflon hydrogen diffusion membrane is a device which directly measures H2 pressures in equilibrium with the... 

This report considers Teflon ( trademark of Dupont) hydrogen diffusion membranes and zirconia pH sensors. The development of these sensors represents a significant advance in the environmental monitoring of En and pH conditions at elevated temperatures and pressures. 

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