Hydrogenation and Hydro-Carbonation and Etching of Single-Walled Carbon Nanotubes

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dc.creatorZhang, Guangyu
dc.creatorQi, Pengfei
dc.creatorWang, Xinran
dc.creatorLu, Yuerui
dc.creatorMann, David
dc.creatorLi, Xiaolin
dc.creatorDai, Hongjie
dc.date2006-11-03
dc.date.accessioned2026-07-07T07:31:12Z
dc.date.available2026-07-07T07:31:12Z
dc.descriptionWe present a systematic experimental investigation of the reactions between hydrogen plasma and single-walled carbon nanotubes (SWNTs) at various temperatures. Microscopy, infrared (IR) and Raman spectroscopy and electrical transport measurements are carried out to investigate the properties of SWNTs after hydrogenation. Structural deformations, drastically reduced electrical conductance and increased semiconducting nature of SWNTs upon sidewall hydrogenation are observed. These changes are reversible upon thermal annealing at 500C via dehydrogenation. Harsh plasma or high temperature reactions lead to etching of nanotube likely via hydro-carbonation. Smaller SWNTs are markedly less stable against hydro-carbonation than larger tubes. The results are fundamental and may have implications to basic and practical applications including hydrogen storage, sensing, band-gap engineering for novel electronics and new methods of manipulation, functionalization and etching of nanotubes.
dc.description3 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0611100
dc.identifierhttp://arxiv.org/abs/cond-mat/0611100
dc.identifierJ. Am. Chem. Soc. 128, 6026-6027 (2006)
dc.identifierdoi:10.1021/ja061324b
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/118669
dc.subjectMaterials Science
dc.titleHydrogenation and Hydro-Carbonation and Etching of Single-Walled Carbon Nanotubes
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