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Synthesis of rare earth oxide nanoplates with single unit cell thickness using a thermal decomposition method

  • Materials (Organic, Inorganic, Electronic, Thin Films)
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Abstract

We report the colloidal synthesis of rare earth oxide nanoplates with square and disk shapes using thermal decomposition of Ln(CH3CO2)3·xH2O in the presence of a mixture of oleylamine and oleic acid (Ln=La, Pr, Nd, Dy, Er, and Y). In this synthesis, oleylamine plays an important role in the formation of ultra-thin nanoplates with thickness of 1.1 nm, which corresponds to a single unit cell dimension of rare earth oxides, and oleic acid serves as a capping agent for the formation of nanoplates having nano-sized side dimension (around 15-40 nm). By varying the rare earth precursors, we obtained square-shaped nanoplates (La2O3, Pr2O3, and Nd2O3) and disk-shaped nanoplates (Dy2O3, Er2O3, and Y2O3), respectively, confirming that our synthesis could be extended to the synthesis of various rare earth oxide nanoplates.

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Correspondence to Woo-Sik Kim.

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This article is dedicated to Prof. Hwayong Kim on the occasion of his retirement from Seoul National University.

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Jung, E., Yu, T. & Kim, WS. Synthesis of rare earth oxide nanoplates with single unit cell thickness using a thermal decomposition method. Korean J. Chem. Eng. 33, 683–687 (2016). https://doi.org/10.1007/s11814-015-0144-5

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  • DOI: https://doi.org/10.1007/s11814-015-0144-5

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