Method for producing Proton-containing oxides

Expand the variety of proton-containing ceramics.

Overview

　In order to commercialize various ceramic electrochemical devices such as fuel cells, hydrogen production cells, hydrogen sensors, ammonia synthesis cells, etc., research and development of proton-conducting oxides has been actively carried out. However, high proton conductivity has been achieved only for oxides in a few type of crystal structures. This makes difficult to develop practical proton-conducting ceramics having mixed conductivity, chemical stability, and sinterability.
　The present invention is an ion-exchange technique using a high-temperature acidic liquid. This technique enables easy conversion from a wide variety of aprotic oxides to oxides containing proton at a high level.

Example for oxide with proton

Product Application

・Fuel cell
・Hydrogen sensor
・Ammonia synthesis cell

IP Data

IP No.　 ： patent applied for
Inventor ： ISHII Akihiro, TAKAMURA Hitoshi, KUME Daisuke
keyword ： FuelCell, HydrogenSensor, AmmoniaSynthesis, ProtonConductor