Ammonia borane generation from hydrolysis

To address this problem, Xu et al. synthesized dendrimer-encapsulated Co nanoparticles, (Gg-OH(Cogo)) with narrow size distribution (1.6 0.4 nm), by using hydroxyl-terminated poly (amidoamine) dendrimer of generation six [42], and they investigated its catalytic activity for hydrolysis of ammonia borane. The results indicated that hydrogen generation from room temperature... 

Gg-OHCCoso)) catalyzed hydrolysis of ammonia borane was 3 equiv (Fig. 6.31). This is the complete hydrogen generation from hydrosis of ammonia borane according toEq. 6.1. 

An alkaline solution of this hydride is stable hydrolysis proceeds in the presence of ruthenium catalyst. It is a great virtue of this process (and also of the process of ammonia borane decomposition mentioned above) that the reaction stops instantly when the catalyst is lifted from the solution. Therefore, hydrogen generation can be controlled on demand that is, in harmony with fuel cell needs. 

TRANSITION METAL NANOPARTICLES CATALYST IN HYDROGEN GENERATION 173 TABLE 7.2 Transition Metal Nanoparticles Catalysts Used in Hydrogen Generation from the Hydrolysis of Ammonia Borane Activation Energy of the Catalytic Hydrolysis and Activity of Catalyst in Turnover Frequency (TOF) at 25 °C, —Not Reported ... 

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