Journal of Electronic Materials, 2016, Vol.45(11), p.5499(8)
To access, purchase, authenticate, or subscribe to the full-text of this article, please visit this link: http://dx.doi.org/10.1007/s11664-016-4843-4 Byline: Jonathan Gandy (1), Francisco Javier Quintero Cortes (2), Jonathan Phillips (3) Keywords: Capacitors; titania; dielectric; super-dielectric material; NaCl Abstract: The focus of the present work is the evaluation of the low-frequency dielectric performance of titanium dioxide nanotube arrays, created by anodization, filled with aqueous NaCl solutions. At low frequency (ca. 〈10.sup.-2 Hz), capacitors made up of this so-called tube super-dielectric material were found to have extreme dielectric constants, greater than 1 billion. The same capacitors also registered unprecedented energy densities, nearly 400 J/cm.sup.3, better than that observed (〈250 J/cm.sup.3) for the same type of anodized titania filled with an aqueous solution of NaNO.sub.3, and about an order of magnitude better than commercial supercapacitors. Sufficient data were collected to propose a correlation relating dielectric thickness and salt concentration to overall energy density. Author Affiliation: (1) Department of Mechanical and Aerospace Engineering, Naval Postgraduate School, 1 University Dr., Monterey, CA, 93943, USA (2) Universidad Nacional de Colombia, Bogota, 111321, Colombia (3) Energy Academic Group, Naval Postgraduate School, 1 University Dr., Monterey, CA, 93943, USA Article History: Registration Date: 01/08/2016 Received Date: 17/05/2016 Accepted Date: 01/08/2016 Online Date: 15/08/2016
Sodium Chloride – Usage ; Dielectric Materials – Testing
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