CO Oxidation over Pd/ZrO2 Catalysts: Role of Support′s Donor Sites
AbstractA series of supported Pd/ZrO2 catalysts with Pd loading from 0.2 to 2 wt % was synthesized. The ZrO2 material prepared by a similar technique was used as a reference sample. The samples have been characterized by means of transmission electron microscopy (TEM), X-ray diffraction analysis (XRD), X-ray photoelectron spectroscopy (XPS), temperature-programmed reduction (TPR), testing reaction of ethane hydrogenolysis (HGE), N2 adsorption, and electron paramagnetic resonance (EPR) spectroscopy. 1,3,5-trinitrobenzene was used as a probe molecule for the EPR spin probe method. The catalytic performance of samples was tested in the model reaction of CO oxidation. It was shown that the concentration of donor sites of support measured by EPR spin probe correlates with catalytic behavior during light-off tests. Low concentration of donor sites on a support’s surface was found to be caused by the presence of the specific surface defects that are related to existence of coordinately unsaturated structures. View Full-Text
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Vedyagin, A.A.; Volodin, A.M.; Kenzhin, R.M.; Chesnokov, V.V.; Mishakov, I.V. CO Oxidation over Pd/ZrO2 Catalysts: Role of Support′s Donor Sites. Molecules 2016, 21, 1289.
Vedyagin AA, Volodin AM, Kenzhin RM, Chesnokov VV, Mishakov IV. CO Oxidation over Pd/ZrO2 Catalysts: Role of Support′s Donor Sites. Molecules. 2016; 21(10):1289.Chicago/Turabian Style
Vedyagin, Aleksey A.; Volodin, Alexander M.; Kenzhin, Roman M.; Chesnokov, Vladimir V.; Mishakov, Ilya V. 2016. "CO Oxidation over Pd/ZrO2 Catalysts: Role of Support′s Donor Sites." Molecules 21, no. 10: 1289.
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