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Nano-Structured Materials For Energy Storage Applications, Dongxue Zhao
Nano-Structured Materials For Energy Storage Applications, Dongxue Zhao
Doctoral Dissertations
"Hydrogen is a non-polluting and efficient energy carrier. One barrier to utilizing hydrogen is a reliable storage method. NaAlH4 is the prototypical example of a complex metal hydride with high hydrogen storage capacities (~ 5.5 wt.%) and acceptable reaction temperatures of around 100⁰ when using catalyst. On decomposition of these complex hydrides, such as NaAlH4, one is left with monohydride NaH. The kinetics of diffusion in the monohydrides is important because reversibility hinges on mass transport and the formation of [AlH4]- anions that must structurally coordinate with the alkali metal cation on hydrogen absorption. …