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LIGHT METAL HYDRIDES FOR HYDROGEN STORAGE IN THE ZERO-EMISSIONVEHICLE

机译:零排放车辆中用于储氢的轻金属氢化物

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Hydrogen is the ideal fuel for the future zero-emission vehicle. While storage in liquid or gaseousrnform imposes safety problems, metal hydrides are a safe alternative for H-storage and, in addition,rnhave a higher volumetric energy density. Light metal hydrides have a high storage capacity byrnweight and are therefore favored for automotive applications. However, these hydrides have notrnbeen considered competitive because of their sluggish sorption kinetics in the range of severalrnhours. In this report, we will compare sorption kinetics as well as storage capacities andrntemperatures of operation of different nanocrystalline Mg-based hydrides as well as Na2LiAlH6rnprepared by high-energy milling. Sorption kinetics is drastically enhanced by the finernmicrostructure and catalyst additions.
机译:氢是未来零排放汽车的理想燃料。虽然以液态或气态形式存储会带来安全问题,但金属氢化物是氢存储的安全替代品,此外,其具有更高的体积能密度。轻金属氢化物具有很高的重量存储容量,因此非常适合汽车应用。然而,由于这些氢化物在数小时范围内的缓慢的吸附动力学,尚未被认为具有竞争力。在本报告中,我们将比较不同的纳米晶镁基氢化物以及通过高能研磨制备的Na2LiAlH6n的吸附动力学,吸附容量,操作温度。精细的微观结构和催化剂的添加大大提高了吸附动力学。

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