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Electrokinetic energy conversion efficiency in ion-selective nanopores
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View: Figures


Image of FIG. 1.
FIG. 1.

(Color online) (a) A schematic diagram of an electrokinetic battery. (b) Schematic illustration of electrokinetic power generation in a cation-selective nanopore. and are the pore radius and length, respectively. and are, respectively, the pressure difference and the potential difference. refers to the slip length.

Image of FIG. 2.
FIG. 2.

(Color online) Plots of the maximum conversion efficiency (, bold solid-line) and the corresponding output power density (, dashed-line) of a cation-selective nanopore as a function of in the absence of slip. Note that the fine solid-line represents the results of a cation-selective nanoslit calculated using Eq. (S8) (See Ref. 15). The values of are calculated for , , and . Inset: a comparison of the results obtained from the semi-analytical (solid-line) and approximation (dashed-line) expressions of Z for a cation-selective nanoslit.

Image of FIG. 3.
FIG. 3.

Contour plots of (a) the maximum conversion efficiency () (left) and the corresponding output power density () (right), and (b) the efficiency of maximum power () (left) and the corresponding maximum power density () (right) as functions of and for a Li+ ion-selective nanopore. The counter values for the efficiency and power density are in units of % and W/m2, respectively.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Electrokinetic energy conversion efficiency in ion-selective nanopores