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EXAFS Study on Nanosized PtRu Catalyst for Direct Methanol Fuel Cell

Published online by Cambridge University Press:  01 February 2011

Hiroaki Nitani ,
Takahiro Ono ,
Yusuke Honda ,
Akiko Koizumi ,
Takashi Nakagawa ,
Takao A. Yamamoto ,
Hideo Daimon  and
Yukiko Kurobe
Hiroaki Nitani
Affiliation:
[email protected], Graduate School of Engineering, Osaka University, Dept. of Management of Industry and Technology, 2-1 Yamada-oka, Suita city, Osaka pref., 565-0871, Japan, +81 6 6879 7886, +81 6 6879 7886
Takahiro Ono
Affiliation:
[email protected], Graduate School of Engineering, Osaka University, Japan
Yusuke Honda
Affiliation:
[email protected], Graduate School of Engineering, Osaka University, Japan
Akiko Koizumi
Affiliation:
[email protected], Graduate School of Engineering, Osaka University, Japan
Takashi Nakagawa
Affiliation:
[email protected], Graduate School of Engineering, Osaka University, Japan
Takao A. Yamamoto
Affiliation:
[email protected], Graduate School of Engineering, Osaka University, Japan
Hideo Daimon
Affiliation:
[email protected], Hitachi Maxell Ltd., Development & Technology Division, Japan
Yukiko Kurobe
Affiliation:
[email protected], Hitachi Maxell Ltd., Development & Technology Division
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Abstract

Nano-sized PtRu catalysts supported on carbon nanoparticles were synthesized by a polyol process. The PtRu catalyst prepared at pH=3 indicated higher catalysis for methanol oxidation than one prepared at pH=5.5. The samples were analyzed by techniques of the extended X-ray absorption fine structure (EXAFS), transmission electron microscope (TEM), X-ray diffraction (XRD) and X-ray fluorescence (XRF). Their results showed that the pH of the precursor solution during the polyol process affected the substructure of the PtRu nanoparticles. The correlation of the substructure with the catalytic activity was studied.

Keywords

catalyticnanostructureextended x-ray absorption fine structure(EXAFS)
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 900: Symposium O – Nanoparticles and Nanostructures in Sensors and Catalysis , 2005 , 0900-O09-12
Copyright
Copyright © Materials Research Society 2006

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References

REFERENCES

1. Cropper, M. A. J., Geiger, S. and Jollie, D. M., J. Power Sources 131, 57 (2004).Google Scholar
2. Cacciola, G., Antonucci, V. and Freni, S., J. Power Sources 100, 67 (2001).Google Scholar
3. Mukerjee, S. and Urian, R. C., Electrochim. Acta 47, 3219 (2002).Google Scholar
4. Russell, A. E., Maniguet, S., Mathew, R. J., Yao, J., Roberts, M. A. and Thompsett, D., J. Power Sources 96, 226 (2001).Google Scholar
5. Watanabe, M. and Motoo, S., J. electroanal. chem. interfacial electrochem. 60, 267 (1975).Google Scholar
6. Toshima, N. and Kuriyama, M., Yamada, Y., Hirai, H., Chem. Lett. 793 (1981).Google Scholar
7. Toshima, N. and Wang, Y., Langmuir 10, 4574 (1994).Google Scholar
8. Fievet, F., Lagier, J. P. and Figlarz, M., MRS Bull. 14, 29 (1989).Google Scholar
9. Lee, P. A., Citrin, P. H., Eisenberger, P. and Kincaid, B. M., Rev. Mod. Phys. 53, 769 (1981).Google Scholar
10. Ravel, B. and Newville, M., J. Synchrotron Rad. 12 (2005) 537.Google Scholar
11. Zabinsky, S. I., Rehr, J. J. and Ankudinov, A., Phys. Rev. B 52, 2995 (1995).Google Scholar
12. Newville, M., The program documentation of UWXAFS 3.0 package: FEFFIT 2.32, (The UWXAFS Project, University of Washington, 1995) p.16.Google Scholar
13. Watabe, M., Zhu, Y., Igarashi, H. and Uchida, H., Electrochemistry 68, 244 (2002).Google Scholar
14. Massalski, T. B., Binary alloy phase diagrams, 2nd ed., (ASM International, Materials Park, Ohio, 1990) p.3123.Google Scholar