Understanding the Formation and Evolution of Ceria Nanoparticles Under Hydrothermal Conditions

Authors

  • Christoffer Tyrsted,

    1. Center for Materials Crystallography, Department of Chemistry and iNANO, Aarhus University, Langelandsgade 140, 8000 Aarhus (Denmark)
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  • Kirsten Marie Ørnsbjerg Jensen,

    1. Center for Materials Crystallography, Department of Chemistry and iNANO, Aarhus University, Langelandsgade 140, 8000 Aarhus (Denmark)
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  • Espen Drath Bøjesen,

    1. Center for Materials Crystallography, Department of Chemistry and iNANO, Aarhus University, Langelandsgade 140, 8000 Aarhus (Denmark)
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  • Dr. Nina Lock,

    1. Center for Materials Crystallography, Department of Chemistry and iNANO, Aarhus University, Langelandsgade 140, 8000 Aarhus (Denmark)
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  • Dr. Mogens Christensen,

    1. Center for Materials Crystallography, Department of Chemistry and iNANO, Aarhus University, Langelandsgade 140, 8000 Aarhus (Denmark)
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  • Prof. Dr. Simon J. L. Billinge,

    1. Applied Physics and Applied Mathematics, Columbia University, New York, NY 10027 (USA)
    2. Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, NY 11973 (USA)
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  • Prof. Dr. Bo Brummerstedt Iversen

    Corresponding author
    1. Center for Materials Crystallography, Department of Chemistry and iNANO, Aarhus University, Langelandsgade 140, 8000 Aarhus (Denmark)
    • Center for Materials Crystallography, Department of Chemistry and iNANO, Aarhus University, Langelandsgade 140, 8000 Aarhus (Denmark)
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  • This work was supported by the Danish National Research Foundation (Center for Materials Crystallography), the Danish Strategic Research Council (Center for Energy Materials), the Danish Research Council for Nature and Universe (Danscatt), and the US National Science Foundation. The Advanced Photon Source is supported by the US Department of Energy, Office of Basic Energy Sciences.

Abstract

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Supercritical growth: The formation and evolution of ceria nanoparticles during hydrothermal synthesis was investigated by in situ total scattering and powder diffraction. The nucleation of pristine crystalline ceria nanoparticles originated from previously unknown cerium dimer complexes. The nanoparticle growth was highly accelerated under supercritical conditions.

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