Kr and 4He Adsorption on Individual Suspended Single-Walled Carbon Nanotubes

Lee, Hao-Chun; Vilches, O. E.; Wang, Zenghui; Fredrickson, Erik K.; Morse, Peter K.; Roy, Richard; Dzyubenko, Boris V.; Cobden, David

doi:10.1007/s10909-012-0642-3

Cited by 17 publications

(22 citation statements)

References 20 publications

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“…The growth of helium films on a nanotube operated as a nanomechanical resonator has recently been demonstrated, with evidence of first-order layering transitions which testify to substrate quality [134]. Elsewhere the sensitivity of electrical transport through a carbon nanotube to a variety of adsorbates, including helium, has been demonstrated [135][136][137]. The commercial availability of large area graphene grown by CVD also offers opportunities.…”

Section: Future Prospectsmentioning

confidence: 99%

Atomically Layered Helium Films at Ultralow Temperatures: Model Systems for Realizing Quantum Materials

2020

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Section: Future Prospectsmentioning

confidence: 99%

Atomically Layered Helium Films at Ultralow Temperatures: Model Systems for Realizing Quantum Materials

2020

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“…The tour de force experiments of the Cobden-Vilches group at the University of Washington (UW) provided an unprecedented opportunity to test our understanding of adsorption of gases on a single carbon nanotube [44]. Prior to their study, many theory/simulation investigations of adsorption on nanotubes, including our own, could be compared only with data taken from either nanotube bundles or nanotube mats, with attendant uncertainties about the geometry, the distribution of nanotube sizes and the effects of heterogeneity [22].…”

Section: Adsorption On a Suspended Carbon Nanotubementioning

confidence: 99%

Adsorption of Gases in Nanomaterials: Theory and Simulations

Mbaye

Maiga

Gatica

2014

Progress in Optical Science and Photonics

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Physical adsorption (physisorption) is the study of atoms or molecules weakly bound to material surfaces. Physisorption-related investigations raise critical questions concerning phase transitions, fractals, wetting transitions, two-dimensional superfluidity, and Van der Waals interactions. This chapter focuses on adsorption of gases (e.g. Ar, Kr, H 2 , CO 2 , and CH 4 ) in nanomaterials, and in particular the authors describe equilibrium properties of the gases adsorbed in carbon nanotubes, graphene and Metal Organic Frameworks (MOFs). The adsorption potential used for developing the theoretical model for studying physisorption involves the summing of two-body interactions, and several important properties of adsorbates can be obtained via simulations, namely equilibrium properties, thermal characteristics, selectivity, wetting features, and structure and phase of the adsorbed monolayer. Applications of physisorption include the separation of cryogenic gases, their storage and their use as a surface characterization tool.

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“…Carbon-based sorbents are of great importance, both from a fundamental, as well as from a practical perspective. Studies of adsorption on exfoliated graphite [1], and, on both single-walled carbon nanotubes [2,3] and nanotube bundles [4,5,6], have provided excellent experimental realizations of matter that are effectively two- and one-dimensional (respectively). On the other hand, adsorption on activated carbons [7] has numerous industrial applications in purification and storage.…”

Section: Introductionmentioning

confidence: 99%

Sorption Kinetics on Open Carbon Nanohorn Aggregates: The Effect of Molecular Diameter

et al. 2016

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Abstract:We present the results of a study of the kinetics of adsorption on aggregates of open carbon nanohorns using argon and CF 4 sorbates. We measured the equilibration times for each value of the sorbent loading along eight adsorption isotherms (four isotherms for each sorbate species). We found that: the equilibration times decrease as the sorbent loading (and the equilibrium pressure of the coexisting gas) increases, for a given temperature; and, that, for a given value of the sorbent loading, the equilibration times decrease with increasing temperature. When considering the effect of scaling of the temperatures by the respective critical temperatures we found that, at the same scaled temperature and at comparable loadings, the equilibration times for CF 4 were longer than those for argon. We discuss a possible explanation for this result.

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Kr and 4He Adsorption on Individual Suspended Single-Walled Carbon Nanotubes

Cited by 17 publications

References 20 publications

Atomically Layered Helium Films at Ultralow Temperatures: Model Systems for Realizing Quantum Materials

Atomically Layered Helium Films at Ultralow Temperatures: Model Systems for Realizing Quantum Materials

Adsorption of Gases in Nanomaterials: Theory and Simulations

Sorption Kinetics on Open Carbon Nanohorn Aggregates: The Effect of Molecular Diameter

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