In-situ monitoring of lowermost amounts of hydrogen desorbed from materials

A recently developed thermal desorption spectrometry variant, Molecular Beam–Thermal Desorption Spectrometry (MB–TDS) is used, to monitor in real time and in-situ the dehydriding kinetics from hydrogen storage materials. It represents a real improvement in the accurate determination of hydrogen mass...

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Bibliographic Details
Published in:	International journal of hydrogen energy Vol. 35; no. 20; pp. 11405 - 11411
Main Authors:	Lobo, R.F.M., Berardo, F.M.V., Ribeiro, J.H.F.
Format:	Journal Article
Language:	English
Published:	Kidlington Elsevier Ltd 01-10-2010 Elsevier
Subjects:	Alternative fuels. Production and utilization Applied sciences Calibration Desorption Energy Exact sciences and technology Fuels Hydrogen Hydrogen storage Microorganisms Nanocomposites Nanostructure Spectrometry Spectroscopy Thermal desorption spectrometry Thermal desorption spectrometry Hydrogen storage Desorption Kinetics Hydrogen Microbalances
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Summary:	A recently developed thermal desorption spectrometry variant, Molecular Beam–Thermal Desorption Spectrometry (MB–TDS) is used, to monitor in real time and in-situ the dehydriding kinetics from hydrogen storage materials. It represents a real improvement in the accurate determination of hydrogen mass absorbed into a solid sample. The enhancement in the signal-to-noise ratio for trace hydrogen is reproducible, and no previous calibration with a chemical standard is required, in contrast to the conventional TDS technique. The procedure shows potential to be a means of studying dehydriding kinetics at the nanoscale in vacuum, even when the amount of hydrogen is below the detection limit of a microbalance.
Bibliography:	ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23
ISSN:	0360-3199 1879-3487
DOI:	10.1016/j.ijhydene.2010.06.093