For Libraries For Publication Open Access Downloads About Us Contact Us
Paper Titles
Fracture Dynamics of a Mode III Moving Crack Impacted by Elastic Wave in Functionally Graded Materials
p.683
Low Temperature Solid Oxide Fuel Cells with SDC-Carbonate Electrolytes
p.687
An Improved Two-Phase Flow and Transport Model for the PEM Fuel Cell
p.691
Fabrication and Characterization of Large Size Anode Substrate of Solid Oxide Full Cell
p.695
Oxygen Reduction Reaction of PEMFC Cathode by Molecular Simulations
p.698
Conversion of Natural Gas to Hydrogen under Super Adiabatic Rich Combustion
p.701
Structure, Magnetic Properties and Defects Distribution of Mn0.5Zn0.5LaxFe2-xO4 Nanocrystals
p.706
A Novel Biomass Gasifier for Producing Tar-Free and Hydrogen-Rich Syngas
p.709
Optimal Selection of Several Substrates in Fermentative Biohydrogen Production Technology
p.713

Oxygen Reduction Reaction of PEMFC Cathode by Molecular Simulations

Article Preview

Abstract:

Cathode catalyst layer plays an important role in PEMFC. Electrochemical reaction in cathode catalyst layer is a control process for the performance in PEMFC. In this paper, oxygen reduction reaction (ORR) is studied by molecular simulations based on a series pathway which consist of four steps. We calculated the free energy of four steps respectively by molecular simulations. Comparing free energy of our steps, we found that the fourth step can release more energy than the other steps. At the same time, we found that the energy released in ORR is decreased with the increase of temperature. The process of the first step in the series pathway release less energy than that of other steps. The results are very helpful for optimization of construction in the cathode and improving performance of PEM fuel cell.

You might also be interested in these eBooks
Chinese Ceramics Communications View Preview

Info:

Periodical:

Advanced Materials Research (Volumes 105-106)

Pages:

698-700

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.105-106.698

Citation:

Cite this paper

Online since:

April 2010

Authors:

Chuang Liu, Yu Hou Wu, Hong Sun, Yu Lan Tang

Keywords:

Fuel Cell (FC), Molecular Simulation, PEM

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2010 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] J. O'M. Bockris, R. Abdu: Journal of Electroanalytical Chemistry. Vol. 448(1998), p.189.

Google Scholar

[2] Y. Wu, Y. Zhang and H. Sun: J. Shenyang Jianzhu Univ. (Natural Science). Vol. 22(2005), p.395.

Google Scholar

[3] Y. Wu and Z. Liu: J. Shenyang Jianzhu Univ. (Natural Science). Vol. 22(2008), p.518.

Google Scholar

[4] E. B. Yeager: Electrochim. Acta. Vol. 29(1984), p.1527.

Google Scholar

[5] R. R. Adzic and J. X. Wang: J. Phys. Chem. B Vol. 102(1998), p.8988.

Google Scholar

[6] N. M. Markovic', T. J. Schmidt, V. Stamenkovic, et al: Fuel Cells. Vol. 1(2001), p.105.

Google Scholar

[7] C. Hartnig and M.T.M. Koper: J. Chem. Phys. Vol. 115 (2001), p.8540.

Google Scholar

[8] J.B. Straus, A. Calhoun and G.A. Voth: J. Chem. Phys. Vol. 102 (1995), p.529.

Google Scholar

[9] J.B. Straus and G.A. Voth: J. Phys. Chem. Vol. 97 (1993), p.7388.

Google Scholar

[10] O. Pecina and W. Schmickler: Journal of Electroanalytical Chemistry. Vol. 450(1998), p.303.

Google Scholar

[11] T.V. Albu and A.B. Anderson: Electrochimica Acta. Vol. 46(2001), p.3001. Figure3. The change of the free energy in direct pathway.

Google Scholar

© 2025 Trans Tech Publications Ltd. All rights are reserved, including those for text and data mining, AI training, and similar technologies. For open access content, terms of the Creative Commons licensing CC-BY are applied.
Scientific.Net is a registered trademark of Trans Tech Publications Ltd.