A facile and quick solvothermal synthesis of 3D microflower CeO2 and Gd:CeO2 under subcritical and supercritical conditions for catalytic applications

Devaraju M. Kempaiah; Shu Yin; Tsugio Sato

doi:10.1039/c0ce00611d

A facile and quick solvothermal synthesis of 3D microflower CeO₂ and Gd:CeO₂ under subcritical and supercritical conditions for catalytic applications

Devaraju M. Kempaiah, Shu Yin, Tsugio Sato

IMRAM - Division of Inorganic Material Research

Tohoku University

Research output: Contribution to journal › Article › peer-review

56 Citations (Scopus)

Abstract

A facile and quick synthesis via solvothermal reaction under subcritical and supercritical temperatures using ethylene glycol media was developed to synthesize three dimensional (3D) flower-like CeO₂ and 5 mol-% Gd³⁺-doped CeO₂ (Gd:CeO₂). The flower-like particles are 5-10 μm in diameter and are actually constructed by the arrangement of nanopetals 20-40 nm in diameter. Flower-like CeO₂ and Gd:CeO₂ exhibited interesting UV-shielding and visible-light scattering properties and higher CO oxidation catalytic activity compared to commercial CeO₂ powders. These materials could find potential applications as UV blocking materials and CO removal catalysts.

Original language	English
Pages (from-to)	741-746
Number of pages	6
Journal	CrystEngComm
Volume	13
Issue number	3
DOIs	https://doi.org/10.1039/c0ce00611d
Publication status	Published - 2011 Feb 7

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AB - A facile and quick synthesis via solvothermal reaction under subcritical and supercritical temperatures using ethylene glycol media was developed to synthesize three dimensional (3D) flower-like CeO2 and 5 mol-% Gd3+-doped CeO2 (Gd:CeO2). The flower-like particles are 5-10 μm in diameter and are actually constructed by the arrangement of nanopetals 20-40 nm in diameter. Flower-like CeO2 and Gd:CeO2 exhibited interesting UV-shielding and visible-light scattering properties and higher CO oxidation catalytic activity compared to commercial CeO2 powders. These materials could find potential applications as UV blocking materials and CO removal catalysts.

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A facile and quick solvothermal synthesis of 3D microflower CeO₂ and Gd:CeO₂ under subcritical and supercritical conditions for catalytic applications

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