Mandal, Tapas Kumar ; Sebastian, Litty ; Gopalakrishnan, J. ; Abrams, Lloyd ; Goodenough, J. B. (2004) Hydrogen uptake by barium manganite at atmospheric pressure Materials Research Bulletin, 39 (14-15). pp. 2257-2264. ISSN 0025-5408
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S00255...
Related URL: http://dx.doi.org/10.1016/j.materresbull.2004.08.009
Abstract
Investigation of the interaction of hydrogen with alkaline earth manganites (IV) AMnO3 (A = Ca, Sr, Ba), dispersed with 1 at.% Pt, has revealed an unprecedented uptake of hydrogen by BaMnO3/Pt to the extent of ~ 1.25 mass% at moderate temperatures (190-260 °C) and ambient pressure. Gravimetric sorption isotherms and mass spectrometric analysis of the desorption products indicate that approximately three hydrogen atoms per mol of BaMnO3/Pt is inserted reversibly. The nature of hydrogen in the insertion product, BaMnO3H3, is discussed. The work suggests the possibility of developing new hydrogen storage materials based on electropositive metal-transition metal-oxide systems.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | A. Oxides; A. Hydrides; C. Thermogravimetric Analysis (TGA) |
| ID Code: | 12540 |
| Deposited On: | 13 Nov 2010 13:23 |
| Last Modified: | 16 May 2016 21:52 |
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