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Ionic Transport of Hydrogen in Structured Soft Materials


EMSL Project ID
25698

Abstract

We will explore how the motion of hydrogen in the form of hydronium is controlled in a nanometer-sculpted multilayer composite water/hydrocarbon film, and how the motion of the ion alters the material. The role of the solvation potential, external electric field, and water structure will be varied to alter the ion motion. These will provide insight into transport of hydrogen across soft laminar materials, as in cells (fuel and living) and biofilms, where the water present is so small in at least dimension, that neither bulk water or ice properties can apply.

Project Details

Project type
Large-Scale EMSL Research
Start Date
2007-06-25
End Date
2008-08-13
Status
Closed

Team

Principal Investigator

James Cowin
Institution
Pacific Northwest National Laboratory

Team Members

Richard Bell
Institution
Pennsylvania State University

Kai Wu
Institution
Peking University

Martin Iedema
Institution
Pacific Northwest National Laboratory

Related Publications

Bell RC, K Wu, MJ Iedema, GK Schenter, and JP Cowin. 2009. "The Oil-Water Interface: Mapping the Solvation Potential." Journal of the American Chemical Society 131(3):1037-1042. doi:10.1021/ja805962x
Lilach Y, MJ Iedema, and JP Cowin. 2008. "Proton segregation on a Growing Ice Interface." Surface Science 602(17):2886-2893.
Wang H, RC Bell, MJ Iedema, GK Schenter, K Wu, and JP Cowin. 2008. "Pyroelectricity of Water Ice." Journal of Physical Chemistry B 112(20):6379-6389. doi:10.1021/jp073870c