・日時：２０１８年７月５日（木）１６：００～
・場所：広島大学　工学部１１０
・講演者氏名： Prof. Bjorn Hauback, Department Head
・所属：Physics Department, Institute for Energy Technology, Norway
・講演タイトル：Rare-earth borohydrides – Crystal structures and thermal properties
・講演概要：Metal borohydrides have been extensively investigated over the last years
both as potential hydrogen storage materials and as solid state electrolytes in Li-ion batteries.During the last years our interest has been directed to the synthesis and properties of transition metal- and rare-earth (RE) borohydrides with different metal atoms and in some cases with anion substitution. This work presents detailed studies of the crystal structures and thermal properties of RE-borohydrides. These compounds show a big structural variety with anion substation, polymorphism, difference in coordination numbers and multiple oxidation states. The thermal decomposition of the mixtures has been studied by in situ synchrotron radiation powder X-ray diffraction, thermogravimetric analysis / differential scanning calorimetry and temperature programmed desorption. Composites with RE-borohydrides and LiBH4/LiH could be cycled at relatively mild conditions