Adsorption of hydrogen on the polar O–ZnO surface: a molecular beam study

文献情報

出版日 2003-09-24

DOI 10.1039/B307955D

インパクトファクター 3.676

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要旨

The interaction of atomic and molecular hydrogen with the polar oxygen-terminated ZnO(000-1) surface has been studied by He atom scattering, LEED, and He atom reflectivity measurements. Whereas the sticking coefficient S0 for molecular hydrogen is so low that only an upper limit can be given (S0 < 3 × 10−7), adsorption of atomic hydrogen leads to the formation of a H(1 × 1) adlayer. Prolonged exposure to H atoms induces a disordering of the surface. The desorption temperature of the adsorbed H atoms was determined by monitoring the reflectivity of the surface for the He atoms. Assuming that the activation energy for desorption is equal to the H atom binding energy and using a pre exponential factor of 1021 cm2/(mol s) we yield a value of 163 kJ/mol for the H atom binding energy.

掲載誌

Physical Chemistry Chemical Physics

CiteScore: 5.5

自己引用率: 10.3%

年間論文数: 3036

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

Adsorption of hydrogen on the polar O–ZnO surface: a molecular beam study

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Physical Chemistry Chemical Physics

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