Facile hydrothermal synthesis of CeO2 nanopebbles

N. Sabari Arul; D. Mangalaraj; Jeong In Han

doi:10.1007/s12034-015-0992-y

Facile hydrothermal synthesis of CeO₂ nanopebbles

N. Sabari Arul, D. Mangalaraj, Jeong In Han

Department of Chemical and Biochemical Engineering

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

15 Scopus citations

Abstract

Cerium oxide (CeO₂) nanopebbles have been synthesized using a facile hydrothermal method. X-ray diffraction pattern (XRD) and transmission electron microscopy analyses confirm the presence of CeO₂ nanopebbles. XRD shows the formation of cubic fluorite CeO₂ and the average particle size estimated from the Scherrer formula was found to be 6.69 nm. X-ray absorption spectrum of CeO₂ nanopebbles exhibits two main sharp white lines at 880 and 898 eV due to the spin orbital splitting of M4 and M5. Optical absorption for the synthesized CeO₂ nanopebbles exhibited a blue shift (Eg = 3.35 eV) with respect to the bulk CeO₂ (Eg = 3.19 eV), indicating the existence of quantum confinement effects.

Original language	English
Pages (from-to)	1135-1139
Number of pages	5
Journal	Bulletin of Materials Science
Volume	38
Issue number	5
DOIs	https://doi.org/10.1007/s12034-015-0992-y
State	Published - 1 Sep 2015

Keywords

CeO
Nanopebbles
Quantum confinement effect
Structural
XAS

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10.1007/s12034-015-0992-y

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title = "Facile hydrothermal synthesis of CeO2 nanopebbles",

abstract = "Cerium oxide (CeO2) nanopebbles have been synthesized using a facile hydrothermal method. X-ray diffraction pattern (XRD) and transmission electron microscopy analyses confirm the presence of CeO2 nanopebbles. XRD shows the formation of cubic fluorite CeO2 and the average particle size estimated from the Scherrer formula was found to be 6.69 nm. X-ray absorption spectrum of CeO2 nanopebbles exhibits two main sharp white lines at 880 and 898 eV due to the spin orbital splitting of M4 and M5. Optical absorption for the synthesized CeO2 nanopebbles exhibited a blue shift (Eg = 3.35 eV) with respect to the bulk CeO2 (Eg = 3.19 eV), indicating the existence of quantum confinement effects.",

keywords = "CeO, Nanopebbles, Quantum confinement effect, Structural, XAS",

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T1 - Facile hydrothermal synthesis of CeO2 nanopebbles

AU - Sabari Arul, N.

AU - Mangalaraj, D.

AU - Han, Jeong In

PY - 2015/9/1

Y1 - 2015/9/1

N2 - Cerium oxide (CeO2) nanopebbles have been synthesized using a facile hydrothermal method. X-ray diffraction pattern (XRD) and transmission electron microscopy analyses confirm the presence of CeO2 nanopebbles. XRD shows the formation of cubic fluorite CeO2 and the average particle size estimated from the Scherrer formula was found to be 6.69 nm. X-ray absorption spectrum of CeO2 nanopebbles exhibits two main sharp white lines at 880 and 898 eV due to the spin orbital splitting of M4 and M5. Optical absorption for the synthesized CeO2 nanopebbles exhibited a blue shift (Eg = 3.35 eV) with respect to the bulk CeO2 (Eg = 3.19 eV), indicating the existence of quantum confinement effects.

AB - Cerium oxide (CeO2) nanopebbles have been synthesized using a facile hydrothermal method. X-ray diffraction pattern (XRD) and transmission electron microscopy analyses confirm the presence of CeO2 nanopebbles. XRD shows the formation of cubic fluorite CeO2 and the average particle size estimated from the Scherrer formula was found to be 6.69 nm. X-ray absorption spectrum of CeO2 nanopebbles exhibits two main sharp white lines at 880 and 898 eV due to the spin orbital splitting of M4 and M5. Optical absorption for the synthesized CeO2 nanopebbles exhibited a blue shift (Eg = 3.35 eV) with respect to the bulk CeO2 (Eg = 3.19 eV), indicating the existence of quantum confinement effects.

KW - CeO

KW - Nanopebbles

KW - Quantum confinement effect

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Facile hydrothermal synthesis of CeO₂ nanopebbles

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