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Is There a ZnO Face Stable to Atomic Hydrogen?

Authors

  • Giovanni Bruno,

    1. Institute of Inorganic Methodologies and of Plasmas, IMIP-CNR Department of Chemistry University of Bari and INSTM UdR Bari via Orabona 4, 70126 Bari (Italy)
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  • Maria Michela Giangregorio,

    1. Institute of Inorganic Methodologies and of Plasmas, IMIP-CNR Department of Chemistry University of Bari and INSTM UdR Bari via Orabona 4, 70126 Bari (Italy)
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  • Graziella Malandrino,

    1. Dipartimento di Scienze Chimiche Università di Catania, and INSTM UdR Catania Viale A. Doria 6, 95125 Catania (Italy)
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  • Pio Capezzuto,

    1. Institute of Inorganic Methodologies and of Plasmas, IMIP-CNR Department of Chemistry University of Bari and INSTM UdR Bari via Orabona 4, 70126 Bari (Italy)
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  • Ignazio L. Fragalà,

    1. Dipartimento di Scienze Chimiche Università di Catania, and INSTM UdR Catania Viale A. Doria 6, 95125 Catania (Italy)
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  • Maria Losurdo

    Corresponding author
    1. Institute of Inorganic Methodologies and of Plasmas, IMIP-CNR Department of Chemistry University of Bari and INSTM UdR Bari via Orabona 4, 70126 Bari (Italy)
    • Institute of Inorganic Methodologies and of Plasmas, IMIP-CNR Department of Chemistry University of Bari and INSTM UdR Bari via Orabona 4, 70126 Bari (Italy).
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Abstract

original image

The interaction of atomic hydrogen with ZnO depends on ZnO polarity. O-polar (000−1) ZnO is stable to atomic hydrogen; Zn-polar (0001) ZnO is partially attacked by atomic hydrogen, affording a self-inhibiting reaction that enriches the surface in metallic Zn; nonpolar (11−20) ZnO is completely etched by atomic hydrogen; and the nonpolar (10−10) ZnO is roughened during interaction with atomic hydrogen.

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