Skip to main content Accessibility help
×
Home

Functionalized Carbon Nanotube Matrix for Inducing Noncovalent Interactions Toward Enhanced Catalytic Performance of Metallic Electrode

  • Le Q. Hoa (a1) (a2), Hiroyuki Yoshikawa (a1) (a2), Masato Saito (a1) and Eiichi Tamiya (a1)

Abstract

Herein, we investigated the noncovalent interactions derived from functionalized carbon nanotube matrices grafting metallic alloy PtRu nanoparticle-decorated Vulcan carbon (fMWCNTs-g-PtRu/C) toward the enhancement of alcohol oxidation reactions. The fMWCNTs noncovalently grafted PtRu/C was successfully synthesized and demonstrated significant enhancement of the electro-catalytic activity and stability toward alcohol oxidation reactions as revealed by electrochemical characterizations. The presented results indicate that the grafting matrix specifically enhances ethanol oxidation reaction kinetics much more than methanol and propanol oxidation reactions. Since the same loading of PtRu/C was used for all tests, the differentiation between these reactants revealed the different strength of noncovalent interactions between the functional matrix and corresponding reactants. This result reveals a new strategy for using fMWCNTs matrix as potential catalyst supports due to its facile fabrication and functionalization, cost effectiveness and environmental friendliness, factors in which all of them are necessary for the practical application of direct alcohol fuel cells in near future.

Copyright

References

Hide All
1. Lamy, C., Rousseau, S., Belgsir, E. M., Coutanceau, C. and Léger, J. -M., Electrochim. Acta 49, 3906 (2004).
2. Lamy, C., Lima, A., Rhun, V. L., Delime, F., Coutanceau, C. and Léger, J. -M., J. Power Sources 105, 285 (2002).
3. Kowal, A., Li, M., Shao, M., Sasaki, K., Vukmirovic, M. B., Zhang, J., Marinkovic, N.S., Liu, P., Frenkel, A. I. and Adzic, R. R., Nat. Mater. 8, 328 (2009).
4. Kowal, A., Gojkovic, S. Lj., Lee, K. S., Olszewski, P. and Sung, Y. E., Electrochem. Commun. 11, 724 (2009).
5. Hoa, L. Q., Sugano, Y., Yoshikawa, H., Saito, M., and Tamiya, E., Biosens. Bioelectron. 25, 2509 (2010).
6. Hoa, L. Q., Sugano, Y., Yoshikawa, H., Saito, M., and Tamiya, E., Electrochim. Acta 56, 9875 (2011).
7. Hoa, L. Q., Yoshikawa, H., Saito, M., and Tamiya, E., J. Mater. Chem. 21, 4068 (2011).
8. Hoa, L. Q., Vestergaard, M. C., Yoshikawa, H., Saito, M., and Tamiya, E., Electrochem. Commun. 13, 746 (2011).
9. Hoa, L. Q., Vestergaard, M. C., Yoshikawa, H., Saito, M., and Tamiya, E., J. Mater. Chem. 22, 14705 (2012).
10. Strmcnik, D., Kodama, K., van der Vliet, D., Greeley, J., Stamenkovic, V. R. and Marković, N. M., Nat. Chem. 1, 466 (2009).
11. Müller-Dethlefs, K. and Hobza, P., Chem. Rev. 100, 143 (1999).

Keywords

Functionalized Carbon Nanotube Matrix for Inducing Noncovalent Interactions Toward Enhanced Catalytic Performance of Metallic Electrode

  • Le Q. Hoa (a1) (a2), Hiroyuki Yoshikawa (a1) (a2), Masato Saito (a1) and Eiichi Tamiya (a1)

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed