Hydrogen Isotope Separation by Quantum Tunneling of Hydrons through Graphene

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  • グラフェンを介したヒドロンの量子トンネリングによる水素同位体分離
  • グラフェン オ カイシタ ヒドロン ノ リョウシ トンネリング ニ ヨル スイソ ドウイタイ ブンリ

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Abstract

<p>Monolayer graphene, representative of atomically thin crystals, has recently shown unexpectedly high proton and deuteron permeability under ambient conditions. It also permeates (filters) hydrogen (deuterium) isotope ion with high selectivity (～10 at room temperature). These results suggest possible ways of developing novel and efficient hydrogen isotope gas enrichment techniques for manufacturing silicon semiconductors, optical fibers, drug development, nuclear fusion, and other related applications. And yet, despite its importance, experimental studies remain scarce and the separation mechanism contentious. Here, we introduce our recent findings on how quantum tunneling of hydrons through graphene could account for the high hydron selectivity of graphene.</p>

Journal

  • Vacuum and Surface Science

    Vacuum and Surface Science 66 (9), 514-519, 2023-09-10

    The Japan Society of Vacuum and Surface Science

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