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Title: Ion transport in micelle-like films: Soft-landed ion studies

Abstract

Ion-transport processes across epitaxially grown micelle-like films in the form of liquid hydrocarbon/water/hydrocarbon sandwiches were studied by a novel ion soft-landing technique. Centered inside of vapor-deposited glassy films of 3-methylpentane (166 monolayers) and methylcyclohexane (50 monolayers) was a water layer from 0 to 10 monolayers thick. From 90 to 150 K the authors time-resolved hydronium ion motion and found that the ions (D{sub 3}O{sup +}) clearly paused in the aqueous phase, being transiently trapped by solvation interactions. A modified Born solvation model qualitatively showed that a trap energy gradually built up in the aqueous phase with the water layer thickness.

Authors:
; ;
Publication Date:
Research Org.:
Pacific Northwest National Lab., Richland, WA (US)
Sponsoring Org.:
USDOE
OSTI Identifier:
20075542
DOE Contract Number:  
AC06-76RL01830
Resource Type:
Journal Article
Journal Name:
Langmuir
Additional Journal Information:
Journal Volume: 16; Journal Issue: 9; Other Information: PBD: 2 May 2000; Journal ID: ISSN 0743-7463
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; MICELLAR SYSTEMS; FILMS; PENTANE; CYCLOHEXANE; WATER; ENVIRONMENTAL TRANSPORT

Citation Formats

Wu, K., Iedema, M.J., and Cowin, J.P. Ion transport in micelle-like films: Soft-landed ion studies. United States: N. p., 2000. Web. doi:10.1021/la990852g.
Wu, K., Iedema, M.J., & Cowin, J.P. Ion transport in micelle-like films: Soft-landed ion studies. United States. doi:10.1021/la990852g.
Wu, K., Iedema, M.J., and Cowin, J.P. Tue . "Ion transport in micelle-like films: Soft-landed ion studies". United States. doi:10.1021/la990852g.
@article{osti_20075542,
title = {Ion transport in micelle-like films: Soft-landed ion studies},
author = {Wu, K. and Iedema, M.J. and Cowin, J.P.},
abstractNote = {Ion-transport processes across epitaxially grown micelle-like films in the form of liquid hydrocarbon/water/hydrocarbon sandwiches were studied by a novel ion soft-landing technique. Centered inside of vapor-deposited glassy films of 3-methylpentane (166 monolayers) and methylcyclohexane (50 monolayers) was a water layer from 0 to 10 monolayers thick. From 90 to 150 K the authors time-resolved hydronium ion motion and found that the ions (D{sub 3}O{sup +}) clearly paused in the aqueous phase, being transiently trapped by solvation interactions. A modified Born solvation model qualitatively showed that a trap energy gradually built up in the aqueous phase with the water layer thickness.},
doi = {10.1021/la990852g},
journal = {Langmuir},
issn = {0743-7463},
number = 9,
volume = 16,
place = {United States},
year = {2000},
month = {5}
}