Application of small-angle scattering to the study of graphite-adsorbed hydrocarbons

E. Gilbert; P. Reynolds; J. White

doi:10.1107/S0021889800099866

Application of small-angle scattering to the study of graphite-adsorbed hydrocarbons

E. Gilbert^*, P. Reynolds, J. White

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

The structure of graphite-adsorbed n-alkanes for 10 ≤ n ≤ 20 has been investigated by SAXS. Below the bulk melting point, T_m, and for alkanes with even n, two distinct diffraction peaks are observed, one associated with the bulk and the other with the surface structure. For alkanes with odd n, only one peak is observed below T_m above T_m a significant reduction in intensity is found, indicating melting of the bulk, but a peak remains. The intensity at T_m increases with n and correlates with previous pyknometric and calorimetric measurements. The surface-adsorbed structure has a repeat corresponding to the orthorhombic spacing of the bulk alkane crystal.

Original language	English
Pages (from-to)	744-748
Number of pages	5
Journal	Journal of Applied Crystallography
Volume	33
Issue number	3 I
DOIs	https://doi.org/10.1107/S0021889800099866
Publication status	Published - 2000

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title = "Application of small-angle scattering to the study of graphite-adsorbed hydrocarbons",

abstract = "The structure of graphite-adsorbed n-alkanes for 10 ≤ n ≤ 20 has been investigated by SAXS. Below the bulk melting point, Tm, and for alkanes with even n, two distinct diffraction peaks are observed, one associated with the bulk and the other with the surface structure. For alkanes with odd n, only one peak is observed below Tm above Tm a significant reduction in intensity is found, indicating melting of the bulk, but a peak remains. The intensity at Tm increases with n and correlates with previous pyknometric and calorimetric measurements. The surface-adsorbed structure has a repeat corresponding to the orthorhombic spacing of the bulk alkane crystal.",

author = "E. Gilbert and P. Reynolds and J. White",

year = "2000",

doi = "10.1107/S0021889800099866",

language = "English",

volume = "33",

pages = "744--748",

journal = "Journal of Applied Crystallography",

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publisher = "International Union of Crystallography",

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TY - JOUR

T1 - Application of small-angle scattering to the study of graphite-adsorbed hydrocarbons

AU - Gilbert, E.

AU - Reynolds, P.

AU - White, J.

PY - 2000

Y1 - 2000

N2 - The structure of graphite-adsorbed n-alkanes for 10 ≤ n ≤ 20 has been investigated by SAXS. Below the bulk melting point, Tm, and for alkanes with even n, two distinct diffraction peaks are observed, one associated with the bulk and the other with the surface structure. For alkanes with odd n, only one peak is observed below Tm above Tm a significant reduction in intensity is found, indicating melting of the bulk, but a peak remains. The intensity at Tm increases with n and correlates with previous pyknometric and calorimetric measurements. The surface-adsorbed structure has a repeat corresponding to the orthorhombic spacing of the bulk alkane crystal.

AB - The structure of graphite-adsorbed n-alkanes for 10 ≤ n ≤ 20 has been investigated by SAXS. Below the bulk melting point, Tm, and for alkanes with even n, two distinct diffraction peaks are observed, one associated with the bulk and the other with the surface structure. For alkanes with odd n, only one peak is observed below Tm above Tm a significant reduction in intensity is found, indicating melting of the bulk, but a peak remains. The intensity at Tm increases with n and correlates with previous pyknometric and calorimetric measurements. The surface-adsorbed structure has a repeat corresponding to the orthorhombic spacing of the bulk alkane crystal.

UR - https://www.scopus.com/pages/publications/0034505697

U2 - 10.1107/S0021889800099866

DO - 10.1107/S0021889800099866

M3 - Article

SN - 0021-8898

VL - 33

SP - 744

EP - 748

JO - Journal of Applied Crystallography

JF - Journal of Applied Crystallography

IS - 3 I

ER -

Application of small-angle scattering to the study of graphite-adsorbed hydrocarbons

Abstract

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