Non-Equilibrium Properties of Au-Pd Nanoparticles

Abstract:

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We address the question of the evolution of a nanostructured system in a metastable state to equilibrium. To this purpose, we use the case study of the transition of an AucorePdshell nanoalloy cluster containing up to about 600 atoms toward the equilibrium Au segregated configuration. We start from a molecular dynamics approach with an embedded atom potential. The way the transition develops at low temperatures is found to be very sensitive to the cluster morphology and the way energy is exchanged with the environment. The transition of icosahedral inverse core-shell Au-Pd clusters is predicted to nucleate locally at the surface contrary to clusters with other morphologies, and starting at lower temperatures compared to them.

Info:

Periodical:

Solid State Phenomena (Volumes 172-174)

Edited by:

Yves Bréchet, Emmanuel Clouet, Alexis Deschamps, Alphonse Finel and Frédéric Soisson

Pages:

670-675

DOI:

10.4028/www.scientific.net/SSP.172-174.670

Citation:

I. S. Atanasov and M. Hou, "Non-Equilibrium Properties of Au-Pd Nanoparticles", Solid State Phenomena, Vols. 172-174, pp. 670-675, 2011

Online since:

June 2011

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$35.00

[1] B. Pawelec, E. Cano-Serrano, J.M. Campos-Martin, R.M. Navarro, S. Thomas and J.L.G. Fierro: Appl. Catal. A Vol. 275 (2004), p.127.

[2] M.O. Nutt, J.B. Hughes and M.S. Wong: Environ. Sci. Technol. Vol. 39 (2005), p.1346.

[3] D. Wang, A. Villa, F. Porta, L. Prati and D. Su: J. Phys. Chem. C Vol. 112 (2008), p.8617.

[4] W. Zhou and J.Y. Lee: Electrochem. Commun. Vol. 9 (2007), p.1725.

[5] J.K. Edwards, A. Thomas, A.F. Carley, A.A. Herzing, C.J. Kiely and G.J. Hutchings: Green Chem. Vol. 10 (2008), p.388.

[6] F. Pittaway, L.O. Paz-Borbón, R.L. Johnston, H. Arslan, R. Ferrando, C. Mottet, G. Barcaro and A. Fortunelli: J. Phys. Chem. C Vol. 113 (2009), p.9141.

DOI: 10.1021/jp9006075

[7] D. Yuan, X. Gong and R. Wu: Phys. Rev. B Vol. 78 (2008), 035441.

[8] J.L. Rousset, J.C. Bertolini and P. Miegge: Phys. Rev. B Vol. 53 (1996), p.4947.

[9] J. Kuntze, S. Speller, W. Heiland, P. Deurinck, C. Creemers, A. Atrei and U. Bardi: Phys. Rev. B Vol. 60 (1999), p.9010.

[10] C. Creemers, P. Deurinck, S. Helfensteyn and J. Luyten: Appl. Surf. Sci. Vol. 219 (2003), p.11.

[11] V. Soto-Verdugo and H. Metiu: Surf. Sci. Vol. 601 (2007), p.5332.

[12] B.J. Wood and H. Wise: Surf. Sci. Vol. 52 (1975), p.151.

[14] T. Visart de Bocarmé, M. Moors, N. Kruse, I.S. Atanasov, M. Hou, A. Cerezo and G.D.W. Smith: Ultramicroscopy Vol. 109 (2009), p.619.

DOI: 10.1016/j.ultramic.2008.11.007

[15] I. Atanasov and M. Hou: Surf. Sci. Vol. 603 (2009), p.2639.

[16] H.J.C. Berendsen, J.P.M. Postma, W.F. van Gunsteren, A. DiNola and J.R. Haak: J. Chem. Phys. Vol. 81 (1984), p.3684.

[17] H.B. Liu, U. Pal, A. Medina, C. Maldonado and J.A. Ascencio: Phys. Rev. B Vol. 71 (2005), 075403.

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