Current awareness

doi:10.1002/hyp.5604

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2008

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“…This electrokinetic phenomenon has been well appreciated in electropolishing, microflow control, biological research, etc [14], and has been studied intensively (e.g. [15][16][17][18][19][20][21]). Once the flow stops, the equilibrium in the inner and outer layers can be reestablished within a few microseconds [22].…”

Section: Introductionmentioning

confidence: 99%

Electrification of a nanoporous electrode in a continuous flow

Qiao¹,

Han²,

Punyamurtula³

2008

J. Phys. D: Appl. Phys.

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By forcing an electrolyte solution to flow across a nanoporous electrode, a significant output voltage was measured. In contradiction to the classic streaming-potential theory, the output voltage was independent of the flow rate and the electrode distance. The discharge time was longer by orders of magnitude than the retention time. If the external resistance was relatively small, the voltage would eventually vanish. These unique phenomena can be attributed to the amplification effect of the large nanopore surface area on the mechanical disturbance of surface capacity.

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