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  Kinetics Enhancement, Reaction Pathway Change, and Mechanism Clarification in LiBH4 with Ti-Catalyzed Nanocrystalline MgH2 Composite

Shao, H., Felderhoff, M., & Weidenthaler, C. (2015). Kinetics Enhancement, Reaction Pathway Change, and Mechanism Clarification in LiBH4 with Ti-Catalyzed Nanocrystalline MgH2 Composite. The Journal of Physical Chemistry C, 119(5), 2341-2348. doi:10.1021/jp511479d.

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 Creators:
Shao, Huaiyu1, Author              
Felderhoff, Michael1, Author              
Weidenthaler, Claudia2, Author              
Affiliations:
1Research Department Schüth, Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1445589              
2Research Group Weidenthaler, Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1950291              

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 Abstract: A composite of 2 LiBH4 + nano-MgH2* (Ti-catalyzed) shows significantly enhanced desorption kinetics compared to a conventional mixture of 2 LiBH4 + MgH2. The desorption mechanism was studied in the temperature range between 304 and 383 °C and under different pressure conditions. Desorption temperatures are 50–70 °C lower compared to conventional 2 LiBH4 + MgH2 mixtures. During the hydrogen release from a mixture of 2 LiBH4 + MgH2* at a hydrogen back-pressure of 0.4 MPa, MgB2 is formed and three different plateaus of equilibrium were detected. The reaction pathway is changed at 360 °C for the 2 LiBH4 + MgH2 system when the nano-MgH2* is used.

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Language(s): eng - English
 Dates: 2015-01-072015-02-05
 Publication Status: Published in print
 Pages: 8
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1021/jp511479d
 Degree: -

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Title: The Journal of Physical Chemistry C
  Abbreviation : J. Phys. Chem. C
Source Genre: Journal
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Publ. Info: Washington DC : American Chemical Society
Pages: - Volume / Issue: 119 (5) Sequence Number: - Start / End Page: 2341 - 2348 Identifier: ISSN: 1932-7447
CoNE: https://pure.mpg.de/cone/journals/resource/954926947766