Mandal, Tapas Kumar and Sebastian, Litty and Gopalakrishnan, J and Abrams, Lloyd and Goodenough, JB (2004) Hydrogen uptake by barium manganite at atmospheric pressure. In: Materials Research Bulletin, 39 (14-15). pp. 2257-2264.
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Abstract
Investigation of the interaction of hydrogen with alkaline earth manganites (IV) $AMnO_{3}$ (A = Ca, Sr, Ba), dispersed with 1 at.% Pt, has revealed an unprecedented uptake of hydrogen by $BaMnO_{3}/Pt$ to the extent of similar to 1.25 mass% at moderate temperatures (190-260 degreesC) and ambient pressure. Gravimetric sorption isotherms and mass spectrometric analysis of the desorption products indicate that approximately three hydrogen atoms per mol of $BaMnO_{3}/Pt$ is inserted reversibly. The nature of hydrogen in the insertion product, $BaMnO_{3}H_{3}$,is discussed. The work suggests the possibility of developing new hydrogen storage materials based on electropositive metal-transitionmetal-oxide systems.
| Item Type: | Journal Article |
|---|---|
| Additional Information: | Copyright for this article belongs to Elsevier Science. |
| Keywords: | A. Oxides;A. Hydrides;C. Thermogravimetric analysis (TGA) |
| Department/Centre: | Division of Chemical Sciences > Solid State & Structural Chemistry Unit |
| Date Deposited: | 29 Mar 2005 |
| Last Modified: | 23 Feb 2012 06:00 |
| URI: | http://eprints.iisc.ernet.in/id/eprint/2970 |
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