A novel polymorph of gadolinium tetrahydroborate produced by mechanical milling
| Autor: | Fabiana C. Gennari, Julián Puszkiel, L. Fernández-Albanesi, J. Andrade-Gamboa |
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| Rok vydání: | 2010 |
| Předmět: |
Hydrogen
Renewable Energy Sustainability and the Environment Gadolinium Thermal decomposition Analytical chemistry Energy Engineering and Power Technology chemistry.chemical_element Condensed Matter Physics Hydrogen storage Fuel Technology Differential scanning calorimetry chemistry Desorption Physical chemistry Isostructural Powder diffraction |
| Zdroj: | International Journal of Hydrogen Energy. 35:10324-10328 |
| ISSN: | 0360-3199 |
| Popis: | Gadolinium tetrahydroborate produced by mechanochemical processing of LiBH4–3GdCl3 mixture exhibits a structural transformation at 484 K. The high-temperature structure has a type cubic structure Gd(BH4)3 (a = 11.418 A), which is isostructural with the one recently reported for Ce(BH4)3. This new phase remains upon heating up to 503 K. Combination of thermal hydrogen desorption, DSC, PXRD and FTIR allows to determine that the thermal decomposition of high-temperature structure Gd(BH4)3 starts above 503 K and leads to 3.1 wt% of hydrogen release obtaining mainly GdH2 as final decomposition product. |
| Databáze: | OpenAIRE |
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