The ins and outs of hydrogen: The hydrogen desorption from and absorption to sodium alanate (NaAlH4) supported on carbon nanofibers are significantly facilitated if its particle size is reduced from the micrometer to the nanometer range (see graph). This improvement is tentatively attributed to the minimization of the solid-state diffusion path length during loading and desorption of hydrogen.
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Baldé et al. (2006) studied this question.
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