Design of micro Direct Methanol Fuel Cell (DFMC) - Реферат

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Chemical reaction. Components of typical DFMC. Micro Fuel Cell Stack for cellular Phone. Developments of micro fuel cell for cellular phones. Proposed design of micro fuel cell. The overall reaction in a DMFC. Construction and main components of DMFC.


Аннотация к работе
As high-tech multifunctional and miniature devices such as laptop computers, digital video recorders, digital multimedia phones and PDAS become more widely used, new power sources need to be developed that have much longer run time and stronger power than those that current power sources, namely lithium batteries, provide. IMG_abc24a05-7124-4b97-b32d-248116a089ca fuel is not reformed as in the indirect methanol fuel cell, but fed directly to the fuel cell operating at a temperature IMG_79f6ab4f-44c7-4622-93b2-9a9693eab1c1 . Because the methanol and water is fed directly into the fuel cell, steam reforming is not required. The reactions are: Anode: IMG_8400eddf-3488-4c13-911e-5537d589c2c3 Cathode: IMG_5ebc6007-0837-4c19-9179-552eff7aa5b3 Overall reaction: IMG_cdace0d6-50ea-44fe-8b8a-a716d1234e24 Methanol and water are adsorbed on a catalyst usually made of platinum and ruthenium particles, and lose protons until carbon dioxide is formed. IMG_009a91a7-54c7-441c-a581-2ad595dd32f2 ions from the anode to the cathode and providing electrical insulation between the anode and the cathode to force the electrons to move from the anode to the cathode all the way through an external circuit.

План
Contents

Introduction

DMFC description

Concept of DMFC

Chemical reaction

Components of typical DFMC

Micro Fuel Cell Stack for cellular Phone

Developments of micro fuel cell for cellular phones

Proposed design of micro fuel cell

References

Introduction

Список литературы
1. M.S. Wilson and S. Gottesfeld, High Performance Catalyzed Membranes of Ultra-low Pt Loadings for Polymer Electrolyte Fuel Cells, Electrochem. Soc., 139, L28 (1992).

2. D.H. Jung, S.Y. Cho, D.H. Peck, D.R. Shin, and J.S. Kim, Preparation and performance of a Nafion/montmorillonite nanocomposite membrane for direct methanol fuel cell, J. Power Sources, 118, 205-211 (2003).

3. Church, Steven (January 6, 2006). "Del. firm installs fuel cell", The News Journal, p. B7.

4. C. Heitner-Wirguin, Recent advances in perfluorinated ionomer membranes: structure, properties and applications, J. Membr. Sci., 120 1-33 (1996).

5. H. Liu, C. Song, L. Zhang, J. Zhang, H. Wang, and D.P. Wilkinson, A review of anode catalysis in the direct methanol fuel cell, J. Power Sources, 155, 95-110 (2006).

6. A.A. Kulikovsky, Voltage loss in bipolar plates in a fuel cell stack, J. Power Sources, 160, 431-435 (2006).

7. W. Vielstich, A. Lamm, and H.A. Gasteiger, Handbook of Fuel Cell, (Wiley, Chichester, England, 2003), pp. 306-7.

8. M. Hogarth, P. Christensen, A. Hamnett, and A. Shukla, the design and construction of high-performance direct methanol fuel cells. 1. Liquid-feed systems, J. Power Sources, 69, 113-124 (1997).

9. (September 28, 2005), http://www.embeddedstar.com, KDDI, Toshiba, Hitachi Showcase Mobile Phone Fuel Cells at CEATEC Japan.

10. (July 6, 2005) http://www.nttdocomo.com, NTT DOCOMO Enhances Prototype Micro Fuel Cell for FOMA Handsets.

11. (December 6th, 2006) http://www.techshout.com, Smallest Fuel Cell Mobile Charger developed by Samsung and SAIT Team.

12. http://www.ballard.com/Carbon_Fiber/Gas_Diffusion_Layer_Products/Specification_Sheets.htm, Paper-based Diffusion Layer for Direct Methanol Fuel Cells.
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