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On Electrical Current in Nanostructu...

Yamada, Hidenori.

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On Electrical Current in Nanostructured Electrochemical Cells.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	On Electrical Current in Nanostructured Electrochemical Cells./
作者:	Yamada, Hidenori.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2019,
面頁冊數:	97 p.
附註:	Source: Dissertations Abstracts International, Volume: 80-10, Section: B.
Contained By:	Dissertations Abstracts International80-10B.
標題:	Applied physics. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=13427395
ISBN:	9781392020531

On Electrical Current in Nanostructured Electrochemical Cells.
Yamada, Hidenori.

On Electrical Current in Nanostructured Electrochemical Cells. - Ann Arbor : ProQuest Dissertations & Theses, 2019 - 97 p.

Source: Dissertations Abstracts International, Volume: 80-10, Section: B.

Thesis (Ph.D.)--University of California, San Diego, 2019.

This item must not be sold to any third party vendors.

An electrochemical cell is an energy storage device that involves both electrons and ions as part of the storage mechanism. In this work, we investigate the use of nanostructures on the electrodes of the cell to increase the active surface area, and the consequent quantum effects introduced to the cell. With regards to capacitive storage, we predict quantum capacitance will affect the storage capacity of electrons on the electrode, and limit the increase in total capacitance of the device from scaling with the increase in active surface area. Furthermore, we predict geometric effects will affect the screening ability of ions in the electrolyte, allowing device current during charge/discharge cycles to be higher than for a flat electrode. With regards to battery-like storage, we predict the density of states of the electrode will affect the device current, possibly increasing device currents for higher overpotentials compared to a flat electrode battery. This last prediction is based on treatment of the redox reaction process as a tunneling process between electron and ion, akin to a recombination process between electron and hole in a solid state device such as a reverse biased diode.

ISBN: 9781392020531Subjects--Topical Terms:

3343996
Applied physics.

On Electrical Current in Nanostructured Electrochemical Cells.
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520 $a An electrochemical cell is an energy storage device that involves both electrons and ions as part of the storage mechanism. In this work, we investigate the use of nanostructures on the electrodes of the cell to increase the active surface area, and the consequent quantum effects introduced to the cell. With regards to capacitive storage, we predict quantum capacitance will affect the storage capacity of electrons on the electrode, and limit the increase in total capacitance of the device from scaling with the increase in active surface area. Furthermore, we predict geometric effects will affect the screening ability of ions in the electrolyte, allowing device current during charge/discharge cycles to be higher than for a flat electrode. With regards to battery-like storage, we predict the density of states of the electrode will affect the device current, possibly increasing device currents for higher overpotentials compared to a flat electrode battery. This last prediction is based on treatment of the redox reaction process as a tunneling process between electron and ion, akin to a recombination process between electron and hole in a solid state device such as a reverse biased diode.
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