Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7712891 | International Journal of Hydrogen Energy | 2016 | 6 Pages |
Abstract
Silicon-carbide nanotubes were synthesized by the reaction between SiO vapor as the Si source and carbon nanotubes as the carbon precursor. The resulting nanotubes were then purified with a hot, concentrated NaOH solution in order to remove the amorphous silica from their surface. The purified silicon-carbide nanotubes were doped with either potassium (K) or titanium (Ti). The hydrogen adsorption isotherms of the nanotubes were measured gravimetrically with the aid of a magnetic suspension microbalance. The results indicate that the K-doped silicon-carbide nanotubes exhibit promise as a hydrogen adsorption material, storing three times more hydrogen than the carbon nanotubes.
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Authors
Seyed Hamed Barghi, Theodore T. Tsotsis, Muhammad Sahimi,