Tuning Pt-CeO2 interactions by high-temperature vapor-phase synthesis for improved reducibility of lattice oxygen

Xavier Isidro Pereira-Hernández, Andrew DeLaRiva, Valery Muravev, Deepak Kunwar, Haifeng Xiong, Berlin Sudduth, Mark Engelhard, Libor Kovarik, Emiel J. M. Hensen (), Yong Wang () and Abhaya K. Datye ()
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Xavier Isidro Pereira-Hernández: Washington State University
Andrew DeLaRiva: University of New Mexico
Valery Muravev: Department of Chemical Engineering and Chemistry, Eindhoven University of Technology
Deepak Kunwar: University of New Mexico
Haifeng Xiong: University of New Mexico
Berlin Sudduth: Washington State University
Mark Engelhard: Pacific Northwest National Laboratory
Libor Kovarik: Pacific Northwest National Laboratory
Emiel J. M. Hensen: Department of Chemical Engineering and Chemistry, Eindhoven University of Technology
Yong Wang: Washington State University
Abhaya K. Datye: University of New Mexico

Nature Communications, 2019, vol. 10, issue 1, 1-10

Abstract: Abstract In this work, we compare the CO oxidation performance of Pt single atom catalysts (SACs) prepared via two methods: (1) conventional wet chemical synthesis (strong electrostatic adsorption–SEA) with calcination at 350 °C in air; and (2) high temperature vapor phase synthesis (atom trapping–AT) with calcination in air at 800 °C leading to ionic Pt being trapped on the CeO2 in a thermally stable form. As-synthesized, both SACs are inactive for low temperature (

Date: 2019
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DOI: 10.1038/s41467-019-09308-5

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