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Keywords:

  • crystal growth;
  • hydrothermal synthesis;
  • nanoparticles;
  • X-ray diffraction;
  • X-ray scattering
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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.