(AGENPARL) – lun 08 luglio 2024 *Source*: Tokyo Institute of Technology
*Immediate release:* July 8, 2024
*Headline*: Hexagonal Perovskite Oxides: Electrolytes for Next-Generation
Protonic Ceramic Fuel Cells
*Sub-headline: * The material’s high proton conductivity and chemical
stability at temperatures of 200–500 °C can pave the way for more durable
fuel cells.
*(Tokyo, July 8)* This study presents a significant advancement in fuel
cell technology. Researchers from Tokyo Tech identified hexagonal
perovskite-related Ba5R2Al2SnO13 oxides (R = rare earth metal) as materials
with exceptionally high proton conductivity and thermal stability. Their
unique crystal structure and large number of oxygen vacancies enable full
hydration and high proton diffusion, making these materials ideal
candidates as electrolytes for next-generation protonic ceramic fuel cells
that can operate at intermediate temperatures
without degradation.
For more information, please visit the Tokyo Tech news that we posted at
https://www.titech.ac.jp/english/news/2024/069590 or contact us.
Figure: https://tokyotech.box.com/s/z94tm4rax91ukimw94efmfsmrm5gtum0
*Contact: *Emiko Kawaguchi, Public Relations Department, Tokyo Institute
*About Tokyo Institute of Technology*
Tokyo Tech stands at the forefront of research and higher education as the
leading university for science and technology in Japan. Tokyo Tech
researchers excel in fields ranging from materials science to biology,
computer science, and physics. Founded in 1881, Tokyo Tech hosts over
10,000 undergraduate and graduate students per year, who develop into
scientific leaders and some of the most sought-after engineers in industry.
Embodying the Japanese philosophy of “monotsukuri,” meaning “technical
ingenuity and innovation,” the Tokyo Tech community strives to contribute
to society through high-impact research.
https://www.titech.ac.jp/english/