Lee, Gil-Jae Shim, Jae-Hyeok Cho, Young Whan Lee, Kyung Sub 2024-01-20T23:02:48Z 2024-01-20T23:02:48Z 2021-09-03 2008-07 0360-3199 https://pubs.kist.re.kr/handle/201004/133347 NaAlH4 has been homogeneously mixed with micron- and nano-sized TiO2 powders by high-energy ball milling and their sorption properties have been investigated during hydrogen absorption/desorption cycles. NaAlH4 with TiO2 nanopowder exhibits as good desorption kinetics as NaAlH4 with TiCl3, whereas poor desorption kinetics is observed with micron-sized TiO2 powder. NaAlH4 with TiO2 nanopowder also provides improved cyclic property compared to NaAlH4 with TiCl3 in terms of both desorption rate and hydrogen capacity. X-ray diffraction analysis shows that micron-sized TiO2 remains stable with NaAlH4 after milling, although thermodynamic calculation predicts that TiO2 reacts with NaAIH(4). (C) 2008 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved. English PERGAMON-ELSEVIER SCIENCE LTD HYDROGEN-STORAGE MATERIALS ALUMINUM HYDRIDES DOPED NAALH4 Improvement in desorption kinetics of NaAlH4 catalyzed with TiO2 nanopowder Article 10.1016/j.ijhydene.2008.04.035 1 INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, v.33, no.14, pp.3748 - 3753 INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 33 14 3748 3753 scie scopus 000258987000015 2-s2.0-48949115622 Chemistry, Physical Electrochemistry Energy & Fuels Chemistry Electrochemistry Energy & Fuels Article HYDROGEN-STORAGE MATERIALS ALUMINUM HYDRIDES DOPED NAALH4 hydrogen storage sodium alanate catalyst TiO2 nanopowder ball milling