Fuel cells articles within Communications Materials

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• Article
  06 June 2023 | Open Access

  High proton conduction in Ba₂LuAlO₅ with highly oxygen-deficient layers

  Proton conductors are used in diverse applications that require high ionic conductivity at low temperatures and high chemical stability. Here, we report that Ba₂LuAlO₅ shows high proton conductivities, high diffusivity, and high chemical stability without chemical doping.

  • Riho Morikawa
  • , Taito Murakami
  •  & Masatomo Yashima

• Article
  23 July 2021 | Open Access

  Chemical stability of hydrogen boride nanosheets in water

  Nanoscale boron-based materials are promising for electronic devices, and it is important to understand their chemical stability. Here, hydrogen boride nanosheets are stable against hydrolysis in water, which ab initio calculations attribute to the charge state of boron and the boron-boron bond network.

  • Kurt Irvin M. Rojas
  • , Nguyen Thanh Cuong
  •  & Ikutaro Hamada

• Article
  08 May 2020 | Open Access

  Strain-induced structure and oxygen transport interactions in epitaxial La_0.6Sr_0.4CoO_3−δ thin films

  Strain engineering can enhance oxygen transport in cathodes in solid oxide fuel cells. Here, atomic scale imaging is used to probe local structures in tensile- and compressive-strained La_0.6Sr_0.4CoO_3-δ films, revealing higher oxygen vacancy concentration in tensile films, and vacancy ordering.

  • Yurii P. Ivanov
  • , Markus Kubicek
  •  & Zaoli Zhang

• Article
  04 February 2020 | Open Access

  Identifying superionic conductors by materials informatics and high-throughput synthesis

  High-throughput prediction and synthesis are vital for obtaining new materials that deviate from existing compositions. Here, machine learning is combined with high-throughput synthesis to identify superionic conductors based on Ca-(Nb,Ta)-Bi-O.

  • Masato Matsubara
  • , Akitoshi Suzumura
  •  & Ryoji Asahi