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Showing 1–10 of 10 results
Advanced filters: Author: Masatomo Yashima Clear advanced filters

  • Geometric information on lithium diffusion is crucial to understanding electrode reactions for lithium ion battery applications. Combining high-temperature powder neutron diffraction and the maximum entropy method, experimental evidence for a curved one-dimensional chain for lithium motion in LixFePO4 is now provided.

    • Shin-ichi Nishimura
    • Genki Kobayashi
    • Atsuo Yamada
    Research
    Nature Materials
    Volume: 7, P: 707-711

  • Chemical order/disorder in materials can be difficult to determine for atoms with similar X-ray scattering factors and neutron scattering lengths. Here authors use resonant XRD and NMR to elucidate hidden Mo/Nb chemical order in disordered hexagonal perovskite Ba7Nb4MoO20, with Mo atoms found to be localized near the ion-conducting oxygen deficient layer.

    • Yuta Yasui
    • Masataka Tansho
    • Masatomo Yashima
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-10

  • Oxide-ion conductors are important in various applications for clean energy. Here, authors report high oxide-ion conductivity of hexagonal perovskite-related oxide Ba7Nb3.9Mo1.1O20.05, which is ascribed to the interstitialcy diffusion and low activation energy for oxide-ion conductivity.

    • Masatomo Yashima
    • Takafumi Tsujiguchi
    • Stephen J. Skinner
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-7

  • Oxide ion conductors are an exciting class of materials with applications in various domains. Here, the authors show that Dion–Jacobson Phases are a structure supporting high O2− mobility. The bulk conductivity of CsBi2Ti2NbO10−δ even exceeds that of YSZ, offering new possibilities in electrolyte discovery.

    • Wenrui Zhang
    • Kotaro Fujii
    • Masatomo Yashima
    ResearchOpen Access
    Nature Communications
    Volume: 11, P: 1-8

  • Honeycomb layered oxides are an emerging class of materials with peculiar physicochemical properties. Here, the authors report the synthesis and electrochemical energy storage characterisations of a mixed-alkali honeycomb layered oxide material capable of storing Na and K ions simultaneously.

    • Titus Masese
    • Yoshinobu Miyazaki
    • Tomohiro Saito
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-16

  • Properties of perovskite oxides can be changed by manipulating anion-vacancy order patterns, but they are difficult to control. Here the authors show strain-induced creation and switching of anion vacancies in perovskite films in which the direction or periodicity of anion-vacancy planes is altered depending on the substrate employed.

    • Takafumi Yamamoto
    • Akira Chikamatsu
    • Hiroshi Kageyama
    ResearchOpen Access
    Nature Communications
    Volume: 11, P: 1-8

  • Oxide-based lithium/sodium-rich antiperovskites are regarded as promising solid electrolytes. Here, authors report a series of antiperovskites with a soft lattice containing hydride (H–) and chalcogenide (S2–, Se2–, Te2–) anions, enabling the fast Li+ /Na+ transport assisted by rotational phonon modes.

    • Shenghan Gao
    • Thibault Broux
    • Hiroshi Kageyama
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-10

  • 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
    ResearchOpen Access
    Communications Materials
    Volume: 4, P: 1-9