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/content/aip/journal/jcp/139/20/10.1063/1.4837176
1.
1. V. Wolf, A. Lamm, and H. A. Gasteiger, Handbook of Fuel Cells. Volume 2: Electrocatalysis (John Wiley & Sons Ltd., 2003).
2.
2. A. Rabis, P. Rodriguez, and T. J. Schmidt, ACS Catal. 2, 864 (2012).
http://dx.doi.org/10.1021/cs3000864
3.
3. E. Antolini, Energy Environ. Sci. 2, 915 (2009).
http://dx.doi.org/10.1039/b820837a
4.
4. L. Xiao, L. Zhuang, Y. Liu, J. T. Lu, and H. D. Abruna, J. Am. Chem. Soc. 131, 602 (2009).
http://dx.doi.org/10.1021/ja8063765
5.
5. M. H. Shao, T. Huang, P. Liu, J. Zhang, K. Sasaki, M. B. Vuk-mirovic, and R. R. Adzic, Langmuir 22, 10409 (2006).
http://dx.doi.org/10.1021/la0610553
6.
6. J. Solla-Gullon, V. Montiel, A. Aldaz, and J. Clavilier, Electrochem. Commun. 4, 716 (2002).
http://dx.doi.org/10.1016/S1388-2481(02)00431-9
7.
7. M. H. Shao, K. Sasaki, and R. R. Adzic, J. Am. Chem. Soc. 128, 3526 (2006).
http://dx.doi.org/10.1021/ja060167d
8.
8. Y. G. Suo, L. Zhuang, and J. T. Lu, Angew. Chem., Int. Ed. 46, 2862 (2007).
http://dx.doi.org/10.1002/anie.200604332
9.
9. H. L. Xin, J. A. Mundy, Z. Liu, R. Cabezas, R. Hovden, L. F. Kourkoutis, J. Zhang, N. P. Subramanian, R. Makharis, F. T. Wagner, and D. A. Muller, Nano Lett. 12, 490 (2012).
http://dx.doi.org/10.1021/nl203975u
10.
10. J. P. Perdew, K. Burke, and M. Ernzerhof, Phys. Rev. Lett. 77, 3865 (1996).
http://dx.doi.org/10.1103/PhysRevLett.77.3865
11.
11. G. Kresse and J. Furthmuller, VASP the Guide (Vienna University of Technology, Vienna, Austria, 2001).
12.
12. G. Henkelman, B. P. Uberuaga, and H. A. Jonsson, J. Chem. Phys. 113, 9901 (2000).
http://dx.doi.org/10.1063/1.1329672
13.
13. D. Manogaran and G. S. Hwang, Phys. Chem. Chem. Phys. 15, 12118 (2013).
http://dx.doi.org/10.1039/c3cp50618e
14.
14.See supplementary material at http://dx.doi.org/10.1063/1.4837176 for the synthesis and electrochemical characterization of catalysts. [Supplementary Material]
15.
15. K. Kwon, K. H. Lee, S.-A. Jin, D. J. You, and C. Pak, Electrochem. Commun. 13, 1067 (2011).
http://dx.doi.org/10.1016/j.elecom.2011.06.036
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/content/aip/journal/jcp/139/20/10.1063/1.4837176
2013-11-27
2016-12-08

Abstract

Based on a combined density functional theory and experimental study, we present that the electrochemical activity of PdCo alloy catalysts toward oxygen reduction reaction (ORR) can be enhanced by adding a small amount of Ir. While Ir tends to favorably exist in the subsurface layers, the underlying Ir atoms are found to cause a substantial modification in the surface electronic structure. As a consequence, we find that the activation barriers of O/OH hydrogenation reactions are noticeably lowered, which would be mainly responsible for the enhanced ORR activity. Furthermore, our study suggests that the presence of Ir in the near-surface region can suppress Co out-diffusion from the PdCo substrate, thereby improving the durability of Pd-Ir-Co catalysts. We also discuss the relative roles played by Ir and Co in enhancing the ORR activity relative to monometallic Pd catalysts.

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