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Potassium hydroxide (KOH) was employed to modify multi-walled carbon nanotubes (MWNTs), which were annealed at high temperatures to evaluate the properties of hydrogen storage in this study. Experimental results revealed that the structure of carbon nanotubes (CNTs) became destructive after being activated by KOH at 823K in H2 atmosphere. It was also found that the capacity of hydrogen storage onto...
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