Preferential Adsorption from Binary Mixtures on Graphite: The n-Decane-n-Heptan-1-ol System

被引：7

作者：

Alba, Maria D. ^{[1
]}

Castro, Miguel A. ^{[1
]}

Clarke, Stuart ^{[2
,3
]}

Medina-Carrasco, Santiago ^{[1
]}

Messe, Loic ^{[2
,3
]}

Millan, Carmen ^{[1
]}

Mar Orta, M. ^{[1
]}

Perdigon, Ana C. ^{[4
]}

机构：

[1] Univ Seville, CSIC, Inst Ciencia Mat Sevilla, Dept Quim Inorgan, Seville 41092, Spain

[2] Univ Cambridge, Dept Chem, Cambridge CB3 0HZ, England

[3] Univ Cambridge, BP Inst, Cambridge CB3 0HZ, England

[4] Univ Cantabria, Dept Quim Inorgan & Ingn Quim, E-39005 Santander, Spain

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2009年 / 113卷 / 08期

关键词：

MIXED MONOLAYERS; NMR; OCTANE;

D O I：

10.1021/jp8072014

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The competitive adsorption of n-decane and n-heptan-1-ol adsorbed from the binary liquid mixture onto graphite has been studied using differential scanning calorimetry, incoherent quasielastic neutron scattering, and H-1 and H-2 nuclear magnetic resonance. A solid monolayer is identified at all bulk solution compositions with a melting temperature that varies with bulk composition in a manner resembling the bulk behavior. Incoherent elastic neutron scattering, IQNS, and nuclear magnetic resonance, NMR, data indicate that decane is preferentially adsorbed onto the surface over most of the composition range, heptanol being the principal surface component only at very high heptanol concentrations. NMR is proved, for the first time, to be an efficient tool to provide independent information on each component of the system.

引用

页码：3176 / 3180

页数：5

共 26 条

[1] NMR study of n-dodecane adsorbed on graphite
Alba, MD
Castro, MA
Clarke, SM
Perdigón, AC
[J]. SOLID STATE NUCLEAR MAGNETIC RESONANCE, 2003, 23 (03) : 174 - 181
[2] Thermodynamic investigation of the adsorption of Amides on graphite from their liquids and binary mixtures
Arnold, Thomas
Clarke, Stuart M.
[J]. LANGMUIR, 2008, 24 (07) : 3325 - 3335
[3] H-2 SOLID-STATE NMR OF THE BUTANE GRAPHITE SYSTEM
BODDENBERG, B
NEUE, G
GROSSE, R
[J]. JOURNAL OF CHEMICAL PHYSICS, 1983, 79 (12) : 6418 - 6419
[4] New scattering techniques to characterise the structure of solid monolayers adsorbed from condensed phases to solid substrates
Castro, M
Clarke, SM
Inaba, A
Thomas, RK
[J]. PHYSICA B, 1997, 241 : 1086 - 1088
[5] Preferential adsorption from binary mixtures of short chain n-alkanes;: The octane-decane system
Castro, MA
Clarke, SM
Inaba, A
Thomas, RK
Arnold, T
[J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2001, 105 (36) : 8577 - 8582
[6] The investigation of mixed monolayers adsorbed from solution: octane and nonane mixtures on graphite
Castro, MA
Clarke, SM
Inaba, A
Arnold, T
Thomas, RK
[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 1999, 1 (21) : 5017 - 5023
[7] Crystalline monolayer of dodecanoic acid adsorbed on graphite from n-heptane solution
Castro, MA
Clarke, SM
Inaba, A
Dong, CC
Thomas, RK
[J]. JOURNAL OF PHYSICAL CHEMISTRY B, 1998, 102 (05) : 777 - 781
[8] Solid monolayers adsorbed at the solid-liquid interface studied by incoherent elastic neutron scattering
Castro, MA
Clarke, SM
Inaba, A
Thomas, RK
[J]. JOURNAL OF PHYSICAL CHEMISTRY B, 1997, 101 (44): : 8878 - 8882
[9] Competitive adsorption of simple linear alkane mixtures onto graphite
Castro, MA
Clarke, SM
Inaba, A
Arnold, T
Thomas, RK
[J]. JOURNAL OF PHYSICAL CHEMISTRY B, 1998, 102 (51) : 10528 - 10534
[10] PULSED NUCLEAR RESONANCE APPARATUS
CLARK, WG
[J]. REVIEW OF SCIENTIFIC INSTRUMENTS, 1964, 35 (03) : 316 - &

← 1 2 3 →