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Hydrogen separation by nanocrystalline titanium nitride membranes with high hydride ion conductivity

Author

Listed:
  • Chiharu Kura

    (Hokkaido University)

  • Yuji Kunisada

    (Hokkaido University)

  • Etsushi Tsuji

    (Tottori University)

  • Chunyu Zhu

    (Hokkaido University)

  • Hiroki Habazaki

    (Hokkaido University)

  • Shinji Nagata

    (Tohoku University)

  • Michael P. Müller

    (RWTH Aachen University and JARA-FIT)

  • Roger A. De Souza

    (RWTH Aachen University and JARA-FIT)

  • Yoshitaka Aoki

    (Hokkaido University
    JST-PRESTO)

Abstract

The production of pure hydrogen for use in energy applications and related industries often relies on the permeation of hydrogen through palladium-based membranes. However, the scarcity of Pd reserves necessitates the development of affordable alternatives with high hydrogen permeability. Here we report room-temperature hydrogen permeability of titanium nitrides (widely used as tough and inert coating materials) enabled by mixed hydride ion–electron conductivity. Combined spectroscopic, permeability and microgravimetric measurements reveal that nanocrystalline TiN x membranes feature enhanced grain-boundary diffusion of hydride anions associated with interfacial Ti cations on nanograins. Since the corresponding activation energies are very low (

Suggested Citation

  • Chiharu Kura & Yuji Kunisada & Etsushi Tsuji & Chunyu Zhu & Hiroki Habazaki & Shinji Nagata & Michael P. Müller & Roger A. De Souza & Yoshitaka Aoki, 2017. "Hydrogen separation by nanocrystalline titanium nitride membranes with high hydride ion conductivity," Nature Energy, Nature, vol. 2(10), pages 786-794, October.
    • Handle: RePEc:nat:natene:v:2:y:2017:i:10:d:10.1038_s41560-017-0002-2
    DOI: 10.1038/s41560-017-0002-2
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    Cited by:

    1. Wang, Pengfei & Chen, Yiqi & Teng, Ying & An, Senyou & Li, Yun & Han, Meng & Yuan, Bao & Shen, Suling & Chen, Bin & Han, Songbai & Zhu, Jinlong & Zhu, Jianbo & Zhao, Yusheng & Xie, Heping, 2024. "A comprehensive review of hydrogen purification using a hydrate-based method," Renewable and Sustainable Energy Reviews, Elsevier, vol. 194(C).
    2. Laihao Luo & Xinyan Liu & Xinyu Zhao & Xinyan Zhang & Hong-Jie Peng & Ke Ye & Kun Jiang & Qiu Jiang & Jie Zeng & Tingting Zheng & Chuan Xia, 2024. "Pressure-induced generation of heterogeneous electrocatalytic metal hydride surfaces for sustainable hydrogen transfer," Nature Communications, Nature, vol. 15(1), pages 1-15, December.

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