Presented here is the formulation and characterization of a stable aluminum slurry fuel that reacts readily and exothermically with liquid water to produce hydrogen gas and AlOOH (boehmite). Bulk pure aluminum is first surface-treated with a gallium-indium eutectic, then ground into a powder and suspended in mineral oil containing 4–8 wt% fumed silica as a shear-thinning agent. Aluminum mass fractions of up to 65 wt% are shown here. This formulation results in a slurry fuel that can be pumped continuously at low power while remaining in suspension for over 2 months. The fuel is also shown here to exhibit a high degree of reaction completion (93.4%) with a total measured energy density of 28.7 MJ/L and specific energy of 17.5 MJ/kg. Finally, to show the feasibility of using this fuel for on-demand hydrogen production in a representative power system, a prototype continuous-flow reactor was developed, and validation experiments were performed, the results of which are presented here.

此处介绍的是稳定的铝浆燃料的配方和特性，该燃料容易与放热反应并与液态水反应生成氢气和AlOOH（勃姆石）。散装的纯铝首先用镓铟共晶表面处理，然后研磨成粉末，然后悬浮在含有4-8 wt％气相二氧化硅作为剪切稀化剂的矿物油中。此处显示的铝质量分数高达65 wt％。该配方产生的浆状燃料可以在低功率下连续泵送，同时保持悬浮状态超过2个月。此处还显示该燃料表现出高度的反应完成率（93.4％），总测量能量密度为28.7 MJ / L，比能量为17.5 MJ / kg。最后，