Experimental Investigation of a Direct Methanol Fuel Cell with Hilbert Fractal Current Collectors

The Hilbert curve is a continuous type of fractal space-filling curve. This fractal curve visits every point in a square grid with a size of 2×2, 4×4, or any other power of two. This paper presents Hilbert fractal curve application to direct methanol fuel cell (DMFC) current collectors. The current...

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Main Authors: Jing-Yi Chang, Yean-Der Kuan, Shi-Min Lee
Format: Article
Language:English
Published: Wiley 2014-01-01
Series:Journal of Chemistry
Online Access:http://dx.doi.org/10.1155/2014/371616
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author Jing-Yi Chang
Yean-Der Kuan
Shi-Min Lee
author_facet Jing-Yi Chang
Yean-Der Kuan
Shi-Min Lee
author_sort Jing-Yi Chang
collection DOAJ
description The Hilbert curve is a continuous type of fractal space-filling curve. This fractal curve visits every point in a square grid with a size of 2×2, 4×4, or any other power of two. This paper presents Hilbert fractal curve application to direct methanol fuel cell (DMFC) current collectors. The current collectors are carved following first, second, and third order Hilbert fractal curves. These curves give the current collectors different free open ratios and opening perimeters. We conducted an experimental investigation into DMFC performance as a function of the free open ratio and opening perimeter on the bipolar plates. Nyquist plots of the bipolar plates are made and compared using electrochemical impedance spectroscopy (EIS) experiments to understand the phenomena in depth. The results obtained in this paper could be a good reference for future current collector design.
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series Journal of Chemistry
spelling doaj-art-069fe0b9b285464b9620def11f19fc092025-02-03T01:20:29ZengWileyJournal of Chemistry2090-90632090-90712014-01-01201410.1155/2014/371616371616Experimental Investigation of a Direct Methanol Fuel Cell with Hilbert Fractal Current CollectorsJing-Yi Chang0Yean-Der Kuan1Shi-Min Lee2Ho Tai Development Co., LTD., 12F., No. 143, Fuxing N. Road, Taipei 105, TaiwanNational Chin-Yi University of Technology, No. 35, Lane 215, Section 1, Chung-Shan Road, Taiping District, Taichung 411, TaiwanTamkang University, No. 151, Ying-Chuan Road, Tamsui District, New Taipei City 251, TaiwanThe Hilbert curve is a continuous type of fractal space-filling curve. This fractal curve visits every point in a square grid with a size of 2×2, 4×4, or any other power of two. This paper presents Hilbert fractal curve application to direct methanol fuel cell (DMFC) current collectors. The current collectors are carved following first, second, and third order Hilbert fractal curves. These curves give the current collectors different free open ratios and opening perimeters. We conducted an experimental investigation into DMFC performance as a function of the free open ratio and opening perimeter on the bipolar plates. Nyquist plots of the bipolar plates are made and compared using electrochemical impedance spectroscopy (EIS) experiments to understand the phenomena in depth. The results obtained in this paper could be a good reference for future current collector design.http://dx.doi.org/10.1155/2014/371616
spellingShingle Jing-Yi Chang
Yean-Der Kuan
Shi-Min Lee
Experimental Investigation of a Direct Methanol Fuel Cell with Hilbert Fractal Current Collectors
Journal of Chemistry
title Experimental Investigation of a Direct Methanol Fuel Cell with Hilbert Fractal Current Collectors
title_full Experimental Investigation of a Direct Methanol Fuel Cell with Hilbert Fractal Current Collectors
title_fullStr Experimental Investigation of a Direct Methanol Fuel Cell with Hilbert Fractal Current Collectors
title_full_unstemmed Experimental Investigation of a Direct Methanol Fuel Cell with Hilbert Fractal Current Collectors
title_short Experimental Investigation of a Direct Methanol Fuel Cell with Hilbert Fractal Current Collectors
title_sort experimental investigation of a direct methanol fuel cell with hilbert fractal current collectors
url http://dx.doi.org/10.1155/2014/371616
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AT yeanderkuan experimentalinvestigationofadirectmethanolfuelcellwithhilbertfractalcurrentcollectors
AT shiminlee experimentalinvestigationofadirectmethanolfuelcellwithhilbertfractalcurrentcollectors