Preparation and Microstructure Characterization of Iron Oxide Pellets for Hydrogen Storage

0358285 - ÚCHP 2012 GB eng J - Článek v odborném periodiku
Soukup, Karel - Rogut, J. - Grabowski, J. - Wiatowski, M. - Ludwik-Pardała, M. - Schneider, Petr - Šolcová, Olga
Preparation and Microstructure Characterization of Iron Oxide Pellets for Hydrogen Storage.
International Journal of Systems Applications, Engineering and Development. Roč. 5, č. 3 (2011), s. 334-341. ISSN 2074-1308
Grant CEP: GA MŠMT(CZ) 7C08033
Grant ostatní: RFCR(XE) CT-2007-00006
Výzkumný záměr: CEZ:AV0Z40720504
Klíčová slova: hydrogen storage * transport parameters * inverse gas chromatography
Kód oboru RIV: CI - Průmyslová chemie a chemické inženýrství

The redox cycle of iron oxides (Fe3O4 + 4H2 ↔ 3Fe + 4H2O) which can be applied as a new method of storage and supply of hydrogen were studied. The iron oxides were prepared by precipitation of aqueous ferric nitrate. The addition of aluminium oxide into iron oxides prevented the sintering of metal iron and/or iron oxides during repeated redox cycles. The optimal calcination temperature for cylindrical pellets preparation was found to be 850 oC. Transport parameters for Fe2O3/Al2O3 and Fe/Al2O3 samples, which can be utilized for optimization of porous structure prepared pellets, were determined by the inverse gas chromatography.
Trvalý link: http://hdl.handle.net/11104/0196374