Batch Supercritical Hydrothermal Synthesis of CeO₂ Nanoparticles

Abstract:

CeO₂ nanoparticles with diameter of about 5 nm were prepared by batch supercritical hydrothermal synthesis method at 390 °C without additional treatment. It was found that the characteristics of products depended on the pH value, reactant concentration (C₀), and reaction temperature. The reaction time and coexisting cations (Li⁺, Na⁺ and K⁺) had little effect on the size and morphology of CeO₂ particles. Uniform CeO₂ nanoparticles were synthesized at 390 °C, pH = 9 and C₀ = 0.06 M. The mechanism for batch supercritical hydrothermal synthesis of CeO₂ nanoparticles is discussed.

• Periodical: Advanced Materials Research (Volumes 284-286)
• Pages: 773-780
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.284-286.773
• Online since: July 2011
• Authors: Dan Zhao, Da Liang Li, Xin Qiang Wu, En-Hou Han
• Keywords: Batch Hydrothermal Synthesis, CeO₂, Nanoparticle, Supercritical Water

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