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Electrochemically Synthesized Pt/Al2O3 Oxidation Catalysts

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Abstract

Pt/γ–Al2O3 catalysts made by fast and simple electrochemical dispersion method were characterized using X-ray absorption spectroscopy, CO chemisorption, transmission electron microscopy and X-ray diffraction, and compared with an impregnated catalyst with respect to oxidation of CO and NO. A combination of techniques revealed average particle sizes of 3–4 nm for 0.81–3.8 wt% Pt/γ–Al2O3 catalysts. Electrochemically prepared materials demonstrated catalytic activity comparable to that of conventional impregnated catalyst and reasonable stability.

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Acknowledgments

The authors thank ANKA synchrotron radiation source (KIT, Karlsruhe) for providing beamtime at the XAS beamline and Dr. Stefan Mangold for help during measurements. Angela Beilmann (KIT) is acknowledged for the AAS measurements, and Gülperi Cavusoglu for XRD data acquisition. The authors would further like to thank the Federal Ministry of Education and Research (BMBF) for the financial support (Project “Materials in Action”), and Dr. A. Malyschew (SASOL) for fruitful discussions. Nina V. Smirnova and Alexandra B. Kuriganova thank the Russian Science Foundation (Project No. 14-23-00078) for the financial support.

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Authors and Affiliations

  1. Institute of Catalysis Research and Technology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany

    Dmitry E. Doronkin, Henning Lichtenberg & Jan-Dierk Grunwaldt

  2. Institute for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology, Engesserstr. 20, 76131, Karlsruhe, Germany

    Dmitry E. Doronkin, Sina Baier, Henning Lichtenberg & Jan-Dierk Grunwaldt

  3. Platov South-Russian State Polytechnical University, 132 Prosveschenia St., Novocherkassk, Russia, 346428

    Aleksandra B. Kuriganova & Nina V. Smirnova

  4. Physics Department, Southern Federal University, 5 Zorge St., Rostov-on-Don, Russia, 344090

    Igor N. Leontyev

  5. National University of Science and Technology MISiS, Leninskiy pr. 4, Moscow, Russia, 119049

    Nina V. Smirnova

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  1. Dmitry E. Doronkin
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  2. Aleksandra B. Kuriganova
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  3. Igor N. Leontyev
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Correspondence to Dmitry E. Doronkin.

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Doronkin, D.E., Kuriganova, A.B., Leontyev, I.N. et al. Electrochemically Synthesized Pt/Al2O3 Oxidation Catalysts. Catal Lett 146, 452–463 (2016). https://doi.org/10.1007/s10562-015-1651-z

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