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Translational diffusion of cumene and 3-methylpentane on free surfaces and pore walls studied by time-of-flight secondary ion mass spectrometry
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10.1063/1.3511709
/content/aip/journal/jcp/133/21/10.1063/1.3511709
http://aip.metastore.ingenta.com/content/aip/journal/jcp/133/21/10.1063/1.3511709
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Figures

Image of FIG. 1.
FIG. 1.

Temperature-programmed TOF-SIMS intensities of Ni+ sputtered from the Ni(111) substrate through (a) cumene and (b) 3-methylpentane films with different thickness. The temperature was ramped at a rate of 5 K min−1.

Image of FIG. 2.
FIG. 2.

Temperature-programmed TOF-SIMS intensities of C2H3 + and C2D3 + ions from 20-ML cumene films deposited at (a) 20, (b) 50, and (c) 100 K, on which 1-ML cumene-d12 molecules were adsorbed at 20 K.

Image of FIG. 3.
FIG. 3.

Uptake of D2O into cumene films measured by temperature evolutions of C2H3 + and D3O+ intensities. The cumene films with thickness of 20 ML were deposited on Ni(111) at (a) 20 and (b) 100 K; then, 0.5 ML of D2O molecules were adsorbed on them at 20 K.

Image of FIG. 4.
FIG. 4.

Permeation of cumene through pores of amorphous D2O films probed by temperature evolutions of the C2H3 + and D3O+ intensities. The 20-ML cumene films were deposited on Ni(111) at (a) 20 and (b) 100 K; then, they were capped with 40-ML D2O films at 20 K.

Image of FIG. 5.
FIG. 5.

Uptake of cumene into D2O films measured by temperature evolutions of C2H3 + and D3O+ intensities. The D2O films with thickness of 40 ML were deposited on Ni(111) at (a) 20 and (b) 120 K; then, 0.5 ML of cumene molecules were adsorbed on them at 20 K.

Image of FIG. 6.
FIG. 6.

Uptake of D2O into 3-methylpentane films measured by temperature evolutions of C2H3 + and D3O+ intensities. The 3-methylpentane films with thickness of 20 ML were deposited on Ni(111) at (a) 20 and (b) 70 K; then, 0.5 ML of D2O molecules were adsorbed on them at 20 K.

Image of FIG. 7.
FIG. 7.

Permeation of 3-methylpentane through pores of amorphous D2O films probed by temperature evolutions of the C2H3 + and D3O+ intensities. The 3-methylpentane films with thickness of 20 ML were deposited on Ni(111) at (a) 20 and (b) 70 K; then, they were capped with 20-ML D2O films at 20 K.

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/content/aip/journal/jcp/133/21/10.1063/1.3511709
2010-12-07
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Translational diffusion of cumene and 3-methylpentane on free surfaces and pore walls studied by time-of-flight secondary ion mass spectrometry
http://aip.metastore.ingenta.com/content/aip/journal/jcp/133/21/10.1063/1.3511709
10.1063/1.3511709
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