Marked adsorption irreversibility of graphitic nanoribbons for CO 2 and H 2O

Michihiro Asai, Tomonori Ohba, Takashi Iwanaga, Hirofumi Kanoh, Morinobu Endo, Jessica Campos-Delgado, Mauricio Terrones Maldonado, Kazuyuki Nakai, Katsumi Kaneko

Research output: Contribution to journalArticle

43 Citations (Scopus)

Abstract

Graphene and graphitic nanoribbons possess different types of carbon hybridizations exhibiting different chemical activity. In particular, the basal plane of the honeycomb lattice of nanoribbons consisting of sp 2-hybridized carbon atoms is chemically inert. Interestingly, their bare edges could be more reactive as a result of the presence of extra unpaired electrons, and for multilayer graphene nanoribbons, the presence of terraces and ripples could introduce additional chemical activity. In this study, a remarkable irreversibility in adsorption of CO 2 and H 2O on graphitic nanoribbons was observed at ambient temperature, which is distinctly different from the behavior of nanoporous carbon and carbon blacks. We also noted that N 2 molecules strongly interact with the basal planes at 77 K in comparison with edges. The irreversible adsorptions of both CO 2 and H 2O are due to the large number of sp 3-hybridized carbon atoms located at the edges. The observed irreversible adsorptivity of the edge surfaces of graphitic nanoribbons for CO 2 and H 2O indicates a high potential in the fabrication of novel types of catalysts and highly selective gas sensors.

Original languageEnglish (US)
Pages (from-to)14880-14883
Number of pages4
JournalJournal of the American Chemical Society
Volume133
Issue number38
DOIs
StatePublished - Sep 28 2011

Fingerprint

Nanoribbons
Carbon Nanotubes
Carbon Monoxide
Adsorption
Carbon
Graphite
Graphene
Soot
Atoms
Carbon black
Chemical sensors
Multilayers
Gases
Electrons
Fabrication
Catalysts
Molecules
Temperature

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

Cite this

Asai, M., Ohba, T., Iwanaga, T., Kanoh, H., Endo, M., Campos-Delgado, J., ... Kaneko, K. (2011). Marked adsorption irreversibility of graphitic nanoribbons for CO 2 and H 2O. Journal of the American Chemical Society, 133(38), 14880-14883. https://doi.org/10.1021/ja205832z
Asai, Michihiro ; Ohba, Tomonori ; Iwanaga, Takashi ; Kanoh, Hirofumi ; Endo, Morinobu ; Campos-Delgado, Jessica ; Terrones Maldonado, Mauricio ; Nakai, Kazuyuki ; Kaneko, Katsumi. / Marked adsorption irreversibility of graphitic nanoribbons for CO 2 and H 2O. In: Journal of the American Chemical Society. 2011 ; Vol. 133, No. 38. pp. 14880-14883.
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Asai, M, Ohba, T, Iwanaga, T, Kanoh, H, Endo, M, Campos-Delgado, J, Terrones Maldonado, M, Nakai, K & Kaneko, K 2011, 'Marked adsorption irreversibility of graphitic nanoribbons for CO 2 and H 2O', Journal of the American Chemical Society, vol. 133, no. 38, pp. 14880-14883. https://doi.org/10.1021/ja205832z

Marked adsorption irreversibility of graphitic nanoribbons for CO 2 and H 2O. / Asai, Michihiro; Ohba, Tomonori; Iwanaga, Takashi; Kanoh, Hirofumi; Endo, Morinobu; Campos-Delgado, Jessica; Terrones Maldonado, Mauricio; Nakai, Kazuyuki; Kaneko, Katsumi.

In: Journal of the American Chemical Society, Vol. 133, No. 38, 28.09.2011, p. 14880-14883.

Research output: Contribution to journalArticle

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AU - Campos-Delgado, Jessica

AU - Terrones Maldonado, Mauricio

AU - Nakai, Kazuyuki

AU - Kaneko, Katsumi

PY - 2011/9/28

Y1 - 2011/9/28

N2 - Graphene and graphitic nanoribbons possess different types of carbon hybridizations exhibiting different chemical activity. In particular, the basal plane of the honeycomb lattice of nanoribbons consisting of sp 2-hybridized carbon atoms is chemically inert. Interestingly, their bare edges could be more reactive as a result of the presence of extra unpaired electrons, and for multilayer graphene nanoribbons, the presence of terraces and ripples could introduce additional chemical activity. In this study, a remarkable irreversibility in adsorption of CO 2 and H 2O on graphitic nanoribbons was observed at ambient temperature, which is distinctly different from the behavior of nanoporous carbon and carbon blacks. We also noted that N 2 molecules strongly interact with the basal planes at 77 K in comparison with edges. The irreversible adsorptions of both CO 2 and H 2O are due to the large number of sp 3-hybridized carbon atoms located at the edges. The observed irreversible adsorptivity of the edge surfaces of graphitic nanoribbons for CO 2 and H 2O indicates a high potential in the fabrication of novel types of catalysts and highly selective gas sensors.

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Asai M, Ohba T, Iwanaga T, Kanoh H, Endo M, Campos-Delgado J et al. Marked adsorption irreversibility of graphitic nanoribbons for CO 2 and H 2O. Journal of the American Chemical Society. 2011 Sep 28;133(38):14880-14883. https://doi.org/10.1021/ja205832z