Journal
NANO LETTERS
Volume 12, Issue 3, Pages 1410-1416Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl204087f
Keywords
Nanofluidic; energy conversion; ion layering; density functional theory of fluids
Categories
Funding
- U.S. Army Research Laboratory
- U.S. Army Research Office [W911NF-09-1-0488]
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It is proposed that the layering of large ions at the wall/liquid interface of nanofluidic channels can be used to achieve high efficiency (possibly >50%) in the conversion of hydrostatic energy into electrical power. Large ions tend to produce peaks and troughs in their concentration profiles at charged walls, producing high concentrations far from the walls where the ions' pressure-driven velocity is high. This increases the streaming conductance and the energy conversion efficiency.
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