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Hydrogen Storage Properties of Ca(BH 4 ) 2 –LiNH 2 System
Author(s) -
Chu Hailiang,
Xiong Zhitao,
Wu Guotao,
Guo Jianping,
Zheng Xueli,
He Teng,
Wu Chengzhang,
Chen Ping
Publication year - 2010
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.200900677
Subject(s) - dehydrogenation , hydrogen storage , gravimetric analysis , hydrogen , desorption , cobalt , chemistry , thermal stability , thermal desorption , catalysis , analytical chemistry (journal) , materials science , chemical engineering , inorganic chemistry , environmental chemistry , adsorption , organic chemistry , engineering
Ca(BH 4 ) 2 is one of the promising candidates for hydrogen storage materials because of its high gravimetric and volumetric hydrogen capacity. However, its high dehydrogenation temperature and limited reversibility has been a hurdle for its practical applications. In an effort to overcome these barriers and to adjust the thermal stability , we make a composite system Ca(BH 4 ) 2 –LiNH 2 . Interaction of Ca(BH 4 ) 2 and LiNH 2 leads to decreased dehydrogenation temperatures and increased hydrogen desorption capacity in comparison to pristine Ca(BH 4 ) 2 . More than 7 wt % of hydrogen can be detached at a temperature as low as approximately 178 °C from the cobalt‐catalyzed Ca(BH 4 ) 2 –4 LiNH 2 system.