Mechanisms of Reactions in the Solid State: (110) Al2O3 + (001) ZnO Interfacial Reaction. (Articolo in rivista)

Type
Label
  • Mechanisms of Reactions in the Solid State: (110) Al2O3 + (001) ZnO Interfacial Reaction. (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1021/jp209622u (literal)
Alternative label
  • Pin S.; Newton M.A.; D'Acapito F.; Zema M.; Tarantino S.C.; Spinolo G.; De Souza R. A.; Martin M.; Ghigna P. (2012)
    Mechanisms of Reactions in the Solid State: (110) Al2O3 + (001) ZnO Interfacial Reaction.
    in Journal of physical chemistry. C
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Pin S.; Newton M.A.; D'Acapito F.; Zema M.; Tarantino S.C.; Spinolo G.; De Souza R. A.; Martin M.; Ghigna P. (literal)
Pagina inizio
  • 980 (literal)
Pagina fine
  • 986 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://pubs.acs.org/doi/abs/10.1021/jp209622u (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 116 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
  • Scopu (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1,6,9 : INSTM, IENI/CNR, Università di Pavia, I27100 Pavia, Italy / 2 : ESRF, BP 220, F-38043 Grenoble Cedex, France / 3 : GILDA-CRG, ESRF, BP 220, F-38043 Grenoble Cedex, France / 4,5 : Dipartimento di Scienze della Terra e dell'Ambiente, Università di Pavia, I27100 Pavia, Italy / 7,8 : Institute of Physical Chemistry, RWTH Aachen University, Landoltweg 2, 52056 Aachen, Germany / 1 : Paul Scherrer Institut, 5232 Villigen PSI, Switzerland (literal)
Titolo
  • Mechanisms of Reactions in the Solid State: (110) Al2O3 + (001) ZnO Interfacial Reaction. (literal)
Abstract
  • The mechanisms of the (110) Al 2O 3 + (001) ZnO interfacial reaction, that eventually yields the spinel ZnAl 2O 4, has been studied using a multitechnique approach involving local- and long-range structural probes (EXAFS, ?-XANES, and XRPD) and a surface analytical probe such as SIMS. It is demonstrated that the reaction involves a series of different steps, where at least two different nonequilibrium compounds are formed and then transformed into the spinel. One of these compounds, playing a role similar to reactive intermediates in solution chemistry, has been trapped. To the best of our knowledge, this is the first time that such a kind of behavior has been demonstrated for a heterogeneous solid state reaction. It is argued that the critical step is a concerted, homogeneous movement of a set of atoms, rather than long-range diffusion. The implications of these findings for the fabrication of ceramic and nanoscale materials are discussed. (literal)
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