Experimental Results on 3D-Supported Nanomaterials

Compound Hydrogen content (wt%) Enthalpy of formation AH (k) (mol hydride) ) Main issues 

NH3BH3 12 (19.6) -115.06 decomposition exothermic irreversible formation of bora2ine 

MgH2 7.7 -75.7 high thermodynamic stability relatively slow absorption 

Enthalpy of formation from the elements taken from HSC chemistry database. For compounds decomposing into their elements (MgH2), the absolute value corresponds to the enthalpy of decomposition. Complex hydrides decompose in several steps, thus the enthalpy of decomposition depends on the reaction step. More detailed information about the thermodynamic behavior of complex hydrides can be found for example, in [143]. 

Wiley-VCH Verlag. Reproduced with permission. American Chemical Society. 

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