Uptake of hydrogen from some carbon fibres examined by Secondary Ion Mass Spectrometry

The use of carbonaceous materials for hydrogen storage is not as simple as it may seem. Hydrogen atoms have different bonding energies and are incorporated into different types of these materials. Therefore, it is particularly important to distinguish between the surfacial atoms and those that are e...

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Bibliographic Details
Published in:Applied surface science 2011, Vol.257 (6), p.1881-1885
Main Authors: Madroñero, A., Aguado, J., Blanco, J.M., López, A.
Format: Article
Language:English
Subjects:
Atomic, molecular, and ion beam impact and interactions with surfaces
Bonding
Carbon fibers
Carbon microfibres outgassing
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Electron and ion emission by liquids and solids
impact phenomena
Exact sciences and technology
High vacuum
Hydrogen adsorption
Hydrogen atoms
Hydrogen ejection by vacuum
Hydrogen storage
Impact phenomena (including electron spectra and sputtering)
Ion beams
Physics
Secondary ion mass spectrometry
SIMS hydrogen determination
Spectrographs
Uptakes
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Summary:The use of carbonaceous materials for hydrogen storage is not as simple as it may seem. Hydrogen atoms have different bonding energies and are incorporated into different types of these materials. Therefore, it is particularly important to distinguish between the surfacial atoms and those that are embedded in the bulk of the sample. SIMS spectrograph with periodical interruptions of the ion beam enables us to appreciate that at room temperature and in high vacuum, some outgassing of the surfacial hydrogen takes place.
ISSN:0169-4332
1873-5584
DOI:10.1016/j.apsusc.2010.09.018