Defect-Mediated Adsorption of Methanol and Carbon Dioxide on BaTiO3(001)
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Materials Science and Engineering
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The surface chemistry of single crystal barium titanate (BaTiO3) has been studied using temperature programmed desorption (TPD). TPD measurements were performed with several probe molecules, including methanol and carbon dioxide. The role of oxygen vacancies in the adsorption and reaction of these molecules was examined by annealing the crystal under oxidizing or reducing conditions prior to performing TPD. It is shown that the adsorption and reaction of methanol and carbon dioxide are enhanced on BaTiO3(001) by annealing the crystal under reducing conditions.
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Suggested Citation: Garra, J., Vohs, J.M. and Bonnell, D.A. (2009). "Defect-mediated adsorption of methanol and carbon dioxide on BaTiO3(001)." Journal of Vacuum Science and Technology A. Vol. 27(6). pp. L13 - 17. © 2009 American Vacuum Society. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Vacuum Society. The following article appeared in Journal of Vacuum Science and Technology and may be found at http://dx.doi.org/10.1116/1/3168563.