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DFT MODELING OF BENZOYL PEROXIDE ADSORPTION ON α-Cr2O3 (0001) SURFACE

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  • FRANK MALDONADO

    (Grupo de Fisicoquímica de Materiales, Universidad Técnica Particular de Loja, Apartado 11-01-608, Loja, Ecuador)

  • ARVIDS STASHANS

    (Grupo de Fisicoquímica de Materiales, Universidad Técnica Particular de Loja, Apartado 11-01-608, Loja, Ecuador)

Abstract

Density functional theory (DFT) within the generalized gradient approximation (GGA) has been used to investigate possible adsorption configurations of benzoyl peroxide (BPO) molecule on the chromium oxide (α-Cr2O3) (0001) surface. Two configurations are found to lead to the molecular adsorption with corresponding adsorption energies being equal to −0.16 and −0.48eV, respectively. Our work describes in detail atomic displacements for both crystalline surface and adsorbate as well as discusses electronic and magnetic properties of the system. The most favorable adsorption case is found when the chemical bond between one of the molecular oxygens and one of the surface Cr atoms has been formed.

Suggested Citation

  • Frank Maldonado & Arvids Stashans, 2016. "DFT MODELING OF BENZOYL PEROXIDE ADSORPTION ON α-Cr2O3 (0001) SURFACE," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 23(05), pages 1-11, October.
    • Handle: RePEc:wsi:srlxxx:v:23:y:2016:i:05:n:s0218625x16500372
    DOI: 10.1142/S0218625X16500372
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    Keywords

    α-Cr2O3 (0001) surface; adsorption; DFT+U;
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