Tuning the reactivity of oxide surfaces by charge-accepting adsorbates

  • chair: Wang, Y. / Xia, X. / Urban, A. / Qiu, H. / Strunk, J. / Meyer, B. / Muhler, M. / Wöll, Ch. (2007)

  • place: Angew. Chem. Int. Ed. 46 (2007), 7315-7318

  • Date: 2007

  • Wang, Y. / Xia, X. / Urban, A. / Qiu, H. / Strunk, J. / Meyer, B. / Muhler, M. / Wöll, Ch. (2007): "Tuning the reactivity of oxide surfaces by charge-accepting adsorbates". In: Angew. Chem. Int. Ed. 46 (2007), 7315-7318

Abstract

Bridging the materials and pressure gaps: The adsorption of CO on ZnO surfaces becomes much stronger in the presence of preadsorbed CO2 (see picture; O red, Zn gray, C green). The increased strength of the interaction between CO and polycrystalline ZnO powder originates from the formation of tridentate carbonate species on the mixed-terminated (100) surfaces, which increase the Lewis acidity of neighboring Zn2+ cations.

 

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