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Mechanochemical synthesis and characterization of calcium-doped ceria oxide ion conductor


Ong, Poh Shing and Tan, Yen Ping and Yap, Taufiq Yun Hin (2009) Mechanochemical synthesis and characterization of calcium-doped ceria oxide ion conductor. In: Conference on Advanced Materials and Nanotechnology (CAMAN 2009), 3-5 Nov. 2009, Putra World Trade Centre (PWTC), Kuala Lumpur. (pp. 1-5).


Crystalline fluorite-like structure of Ca-doped CeO2 compounds was prepared via mechanochemical synthesis route. An in-depth study was conducted to optimize the processing parameters whereby three different variables associated with the milling process were studied; milling time, revolution per minute (rpm) and solvent medium. This work was conducted in pursuit of developing optimum milling process parameters for Ca-doped CeO2 oxide ion conductors. For the purpose of comparison, calcium-doped ceria samples were also prepared by conventional solid state method using CeO2 and CaCO3. The single phase compounds were characterized by employing differential thermal analysis/thermogravimetry (DTA/TG), X-ray diffractometry (XRD), infrared spectroscopy (IR), inductively coupled – plasma atomic emission spectroscopy (ICP-AES) and scanning electron microscopy (SEM). The electrical conductivity of sintered samples of calcium doped ceria compounds were investigated in air as a function of temperature using AC impedance spectroscopy.

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Additional Metadata

Item Type: Conference or Workshop Item (Paper)
Divisions: Faculty of Science
DOI Number: https://doi.org/10.1088/1757-899X/17/1/012017
Publisher: IOP Publishing
Keywords: Oxide ion conductor; Calcium; Ceria; Mechanochemical
Depositing User: Nur Farahin Ramli
Date Deposited: 02 Aug 2013 07:56
Last Modified: 29 Nov 2016 07:23
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1088/1757-899X/17/1/012017
URI: http://psasir.upm.edu.my/id/eprint/25024
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