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Solvent induced surface modifications on hydrogen storage performance of ZnO nanoparticle decorated MWCNTs

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Abstract

Surface functionalization via decorating nanometal particles on MWCNTs for hydrogen uptake through a spillover mechanism is the key for hydrogen energy storage for transport sectors. To improve the spillover effect, the decoration of ZnO nanoparticles on the surface of carboxylate-functionalized multi-walled carbon nanotubes (f-MWCNTs) was examined by tuning the experimental conditions such as varying the solvent and metal content. Samples were characterized using SEM coupled with EDS, TEM and powder X-ray diffraction. The hydrogen uptake performance of materials was examined at non-cryogenic temperatures i.e. 253 K and 298 K up to 70 bar pressure. Zn decorated MWCNTs prepared in water, amine and DMF adsorbed 0.47, 0.51 and 0.87 wt% of hydrogen, respectively, at non-cryogenic temperatures and moderate pressures.

Graphical abstract: Solvent induced surface modifications on hydrogen storage performance of ZnO nanoparticle decorated MWCNTs

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Publication details

The article was received on 20 Oct 2017, accepted on 01 Dec 2017 and first published on 04 Dec 2017


Article type: Paper
DOI: 10.1039/C7SE00511C
Citation: Sustainable Energy Fuels, 2018, Advance Article
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    Solvent induced surface modifications on hydrogen storage performance of ZnO nanoparticle decorated MWCNTs

    M. Konni, A. S. Dadhich and S. B. Mukkamala, Sustainable Energy Fuels, 2018, Advance Article , DOI: 10.1039/C7SE00511C

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