Thermal decomposition of Mg(BH4)2 under He flow and H2 pressure

Recent Progress in Metal Borohydrides for Hydrogen Storage

“…Mg(BH 4 ) 2 releases approximately 14.9 mass% of hydrogen when heated up to 870 K [56][57][58][59][60][61][62][63][64][65][66]. The dehydrogenation process is found to also proceed through multiple steps together with the formation of intermediate compounds [62,63,65], as summarized in Figure 2.…”

“…The dehydrogenation process is found to also proceed through multiple steps together with the formation of intermediate compounds [62,63,65], as summarized in Figure 2. Thus far, one of the intermediate compounds has been theoretically predicted and experimentally confirmed as being MgB 12 H 12 [28,29,62,[65][66][67][68][69][70] [62].…”

Formation Process of [B<SUB>12</SUB>H<SUB>12</SUB>]<SUP>2&minus;</SUP> from [BH<SUB>4</SUB>]<SUP>&minus;</SUP> during the Dehydrogenation Reaction of Mg(BH<SUB>4</SUB>)<SUB>2</SUB>

“…1) Recently, intensive studies have been conducted on the synthesis, structural characterizations, and dehydrogenation and rehydrogenation properties of Mg(BH 4 ) 2 . [2][3][4][5][6][7][8][9][10][11] Upon heating, the dehydrogenation amount of Mg(BH 4 ) 2 was reported to be 14.9 mass% of hydrogen according to following reactions. 5,9,10) Mg(BH 4 ) 2 !…”

“…8,10) However, it has been found that the dehydrogenation temperature is greater than 500 K. 2,[4][5][6][9][10][11] À . This study provides a fundamental insight into the further enhancement of the dehydrogenation properties of Mg(BH 4 ) 2 .…”

Improvement on Hydrogen Storage Properties of Complex Metal Hydride

“…Mg(BH4)2 is considered as another promising hydrogen storage materials and it releases approximately 14.9 wt% of hydrogen when heated up to 870K [22,23,[85][86][87][88][89][90][91][92][93]. As discussed in Introduction, the dehydrogen process is found to go through multiple steps with formation of some stable intermediates such as MgB12H12 and MgH2 [21].…”