Imaging nanostructural modifications induced by electronic metal-support interaction effects at Au||cerium-based oxide nanointerfaces

Imaging nanostructural modifications induced by electronic metal-support interaction effects at Au||cerium-based oxide nanointerfaces. Ĺopez-Haro, e, M., Cíes, J‥, Trasobares, S., Pérez-Omil, J‥, Delgado, J‥, Bernal, S., Bayle-Guillemaud, P., Stéphan, O., Yoshida, K., Boyes, E‥, Gai, P‥, & Calvino, J‥ ACS Nano, 6(8):6812--6820, 2012.

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A variety of advanced (scanning) transmission electron microscopy experiments, carried out in aberration-corrected equipment, provide direct evidence about subtle structural changes taking place at nanometer-sized Au||ceria oxide interfaces, which agrees with the occurrence of charge transfer effects between the reduced support and supported gold nanoparticles suggested by macroscopic techniques. Tighter binding of the gold nanoparticles onto the ceria oxide support when this is reduced is revealed by the structural analysis. This structural modification is accompanied by parallel deactivation of the CO chemisorption capacity of the gold nanoparticles, which is interpreted in exact quantitative terms as due to deactivation of the gold atoms at the perimeter of the Au||cerium oxide interface. © 2012 American Chemical Society.

@article{ López-Haro20126812,
  abstract = {A variety of advanced (scanning) transmission electron microscopy experiments, carried out in aberration-corrected equipment, provide direct evidence about subtle structural changes taking place at nanometer-sized Au||ceria oxide interfaces, which agrees with the occurrence of charge transfer effects between the reduced support and supported gold nanoparticles suggested by macroscopic techniques. Tighter binding of the gold nanoparticles onto the ceria oxide support when this is reduced is revealed by the structural analysis. This structural modification is accompanied by parallel deactivation of the CO chemisorption capacity of the gold nanoparticles, which is interpreted in exact quantitative terms as due to deactivation of the gold atoms at the perimeter of the Au||cerium oxide interface. © 2012 American Chemical Society.},
  annote = {cited By (since 1996) 1},
  author = {Ĺ{o}pez-Haro, M.a e and Cíes, J.M.a and Trasobares, S.a and Pérez-Omil, J.A.a and Delgado, J.J.a and Bernal, S.a and Bayle-Guillemaud, P.b and Stéphan, O.c and Yoshida, K.d and Boyes, E.D.d and Gai, P.L.d and Calvino, J.J.a},
  doi = {10.1021/nn301557u},
  issn = {19360851},
  journal = {ACS Nano},
  keywords = { Cerium compounds, Cerium; Charge transfer; Gold; Metal nanoparticle,Aberration-corrected; Cerium oxides; CO chemisorpt},
  number = {8},
  pages = {6812--6820},
  title = {{Imaging nanostructural modifications induced by electronic metal-support interaction effects at Au||cerium-based oxide nanointerfaces}},
  url = {https://www.scopus.com/inward/record.url?eid=2-s2.0-84865593678\&partnerID=40\&md5=fb56ed2b1ad4dd2be42df6bd8ce49113},
  volume = {6},
  year = {2012}
}

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Tighter binding of the gold nanoparticles onto the ceria oxide support when this is reduced is revealed by the structural analysis. This structural modification is accompanied by parallel deactivation of the CO chemisorption capacity of the gold nanoparticles, which is interpreted in exact quantitative terms as due to deactivation of the gold atoms at the perimeter of the Au||cerium oxide interface. © 2012 American Chemical Society.\n</div>\n\n\n</div>\n","downloads":1,"keyword":["Cerium compounds","Cerium; Charge transfer; Gold; Metal nanoparticle","Aberration-corrected; Cerium oxides; CO chemisorpt"],"abstract":"A variety of advanced (scanning) transmission electron microscopy experiments, carried out in aberration-corrected equipment, provide direct evidence about subtle structural changes taking place at nanometer-sized Au||ceria oxide interfaces, which agrees with the occurrence of charge transfer effects between the reduced support and supported gold nanoparticles suggested by macroscopic techniques. 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Tighter binding of the gold nanoparticles onto the ceria oxide support when this is reduced is revealed by the structural analysis. 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