Structural and Chemical Properties of NiOx Thin Films: The Role of Oxygen Vacancies in NiOOH Formation in H2O Atmosphere

Raoul Blume,Wolfram Calvet, A. Ghafari,Thomas Mayer,Axel Knop‐Gericke, Robert Schlögl

Physical Chemistry Chemical Physics（2023）

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摘要

Formation of Ni-(oxy)-hydroxides on NiO x thin films in H 2 O vapor is studied by combined in situ XPS/XAS, SEM and DFT. Formation is mediated by structural defects and oxygen vacancies at high temperatures instigating H 2 O dissociation and metastable OH chemisorption.

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关键词

niox thin films,oxygen vacancies,h2o,thin films

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