5.5.3 Proton conduction in electrolyte made of manganese dioxide for hydrogen gas sensor

H. Koyanaka, Y. Ueda, K. Takeuchi & A. I. Kolesnivkov
Abstract: We propose a network model of oxygen-pairs to store and conduct protons on the surface of manganese dioxide with a weak covalent bond like protons stored in pressured ice. The atomic distances of oxygen-pairs were estimated between 2.57 and 2.60 angstroms in crystal structures of ramsdellite-type and lambda-type manganese dioxides by using protonated samples and inelastic neutron scattering measurements. Good properties for a hydrogen gas sensor using electrolytes made of manganese dioxides that contain...