Thermogravimetric analysis-based screening of metal (II) chlorides as dopants for the destabilization of solid-state hydrazine borane

Thermogravimetric analysis (TGA) is a powerful technique for screening boranes envisaged for chemical hydrogen storage. The demonstration is based on the use of six metal (II) chlorides (MCl2) (with M as 3d-metal or d8 - metal) as destabilizing agents of solid-state hydrazine borane (N2H4BH3). On the basis of TGA profiles combined with derivative thermogravimetric (DTG) curves, it is shown that: e.g. (1) CuCl 2 is an inefficient dopant whereas it is efficient towards ammonia borane (NH3BH3); (2) one of the best destabilization results is achieved with N2H4BH3 doped by 10 wt% CuCl2 -NiCl2.