Abstract
We present a study of the mutual effects of the interactions between an adsorbed gas and an adsorbing porous environment when the possible expansion of the pore is considered. In particular, we have studied the dilation of a carbon nanotube bundle when quantum gases are absorbed within the interstitial channels and also the possibility of gas (H2 and 4He) intercalation between two graphene planes when the distance between them is allowed to change. We find that the dilation of the bundle increases significantly the binding energy of adsorption while intercalation between two graphene sheets is energetically unfavorable for both gases.
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REFERENCES
A.C. Dillon and M.J. Heben, Appl. Phys. A 72, 133 (2001); M.S. Dresselhaus, Williams K.A., Eklund P.C., MRS Bulletin 24, 45 (1999); Q.Y. Wang, S.R. Challa, D.S. Sholl, J.K. Johnson, Phys. Rev. Lett. 82, 956 (1999).
M.M. Calbi, M.W. Cole, S.M. Gatica, M.J. Bojan, and G. Stan, to be published, cond-mat/0103607.
M. Muris, N. Dupont-Pavlovsky, and M. Bienfait (to be published).
Y. Ye et al, Appl. Phys. Lett. 74, 2307 (1999).
C. Park et al, J. Phys. Chem. B 103, 10572 (1999).
E. Polturak and Y. Eckstein, Phys. Rev. Lett. 58, 2680 (1987).
M.M. Calbi, F. Toigo, and M.W. Cole, Phys. Rev. Lett. 86, 5062 (2001).
G. Stan, M.J. Bojan, S. Curtarolo, S.M. Gatica, and M.W. Cole, Phys. Rev. B 62, 2173 (2000).
The specific inputs we use in the expression for the total energy are discussed in detail in M.M. Calbi, F. Toigo, and M.W. Cole, Phys. Rev. Lett. 86, 5062 (2001) Ref. 7. Diffusion Monte Carlo calculations of H2 within a narrow tube 10 and inside interstitial channels of a bundle 11 show that the energy per particle of H2 inside the channel is well approximated by such a quasi-1D expression for bundles of tubes of this size (NT radius ≈ 7 Å). The coefficient k in the NT-NT interaction is derived from a semiempirical NT interaction which is consistent with the experimental value of the interlayer force of graphite 12. This estimate provides an upper bound for k since the lattice structure of neighboring tubes is likely not commensurate, making the tubes more free to move apart.
M.C. Gordillo, J. Boronat, and J. Casulleras, Phys. Rev. Lett. 85, 2348 (2000).
M.C. Gordillo, J. Boronat, and J. Casulleras, to be published.
See A. Mizel et al., Phys. Rev. B 60, 3264 (1999), and references therein.
A. Aharony, in Phase transitions and critical phenomena, Vol. 6, edited by C. Domb and M.S. Green, Academic Press (1976); B.I. Halperin and C.M. Varma, Phys. Rev. B 14, 4030 (1976).
L.W. Bruch, Milton W. Cole and Eugene Zaremba, Physical Adsorption: Forces and Phenomena, Clarendon Press, Oxford (1997), p. 75; R. Kern and M. Krohn, Physica Status Solidi A 116, 23 (1989).
J. Dupont-Roc, M. Himbert, N. Pavloff and J. Treiner, J. Low Temp. Phys. 81, 31 (1990).
X.-Z. Ni and L.W. Bruch, Phys. Rev. B 33, 4584 (1986).
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Calbi, M.M., Toigo, F. & Cole, M.W. Dilation and Intercalation of Gases Within Carbon Nanostructures. Journal of Low Temperature Physics 126, 179–186 (2002). https://doi.org/10.1023/A:1013747724321
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DOI: https://doi.org/10.1023/A:1013747724321