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2011-Sustainable Industrial Processing Summit
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| Editors: | Florian K |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2012 |
| Pages: | 646 pages |
| ISBN: | 978-0-9879917-6-8 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
Effect Of Sample Thickness And Applied Voltage On AC Impedance Spectroscopy
Hengyao Dang1; Xingmin Guo2;1UNIVERSITY OF SCIENCE & TECHNOLOGY BEIJING, Beijing, China; 2UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING, Beijing, China;
Type of Paper: Regular
Id Paper: 342
Topic: 9
Abstract:
AC impedance method is an important means of investigating electrical properties of solid conductive materials. Its advantages have been unanimously approved by many experts and scholars. However, so far, since without a unified parameter setting standards, test results vary considerably, even for the same sample. In this paper, using solid electrolyte NASICON prepared by sol-gel as subject investigated, two factors were studied by changing the thickness of samples and applied voltage. Results show that applied voltage has a great effect on the part of electrode. The more applied voltage, the larger double layer capacity but, the smaller charge-transfer reaction resistance. The thicker of sample，the smaller the effect of the applied voltage on the grain resistance. In order to obtain the data more accurate and to prevent electrode polarization, the applied voltage should be as smaller as possible. Additionally, the sample thickness should not too thin.