Role of CA‐EDTA on the Synthesizing Process of Cerate‐Zirconate Ceramics Electrolyte | Zendy

Nur Athirah Abdullah | Zendy; Sharizal Hasan | Zendy; Nafisah Osman | Zendy

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Role of CA‐EDTA on the Synthesizing Process of Cerate‐Zirconate Ceramics Electrolyte

Author(s) -

Nur Athirah Abdullah,

Sharizal Hasan,

Nafisah Osman

Publication year - 2012

Publication title -

journal of chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.436

H-Index - 50

eISSN - 2090-9063

pISSN - 2090-9071

DOI - 10.1155/2013/908340

Subject(s) - chemistry , calcination , thermogravimetric analysis , chelation , thermal decomposition , citric acid , nuclear chemistry , fourier transform infrared spectroscopy , inorganic chemistry , ethylene glycol , zirconate , reagent , acetic acid , ceramic , organic chemistry , catalysis , chemical engineering , engineering , titanate

The role of a combination between citric acid (CA) and ethylenediaminetetra acetic acid (EDTA) as chelating agents in preparation of BaCe0.54Zr0.36Y0.1O2.95 powder by a modified sol-gel method is reported. The precursor solutions were prepared from metal nitrate salts (M+), chelating agents (C), and ethylene glycol (EG) at molar ratio of M+ : C : EG = 3 : 2 : 3. Chemical and phase transformation of samples during thermal decomposition were analyzed by thermogravimetric analysis (TGA) and Fourier transform infrared (FTIR) spectroscopy. TGA results show that the sample prepared by a combination of CA-EDTA exhibited the lowest thermal decomposition temperature, Ttd since there was no significant weight loss after 750°C. After calcined at 1100°C, the carbonates residue remained in the samples as proven by FTIR results. It was found that the used combination of CA-EDTA acts as a better combustion reagent to increase the reaction rate and influence the thermal decomposition behaviour compared to a single citric acid and EDTA, respectively. Apparently, calcination temperatures above 1100°C are needed to produce a pure perovskitic BaCe0.54Zr0.36Y0.1O2.95

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