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Integrated Ferroelectrics
An International Journal
Volume 129, 2011 - Issue 1
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Original Articles

Sol-Gel Synthesis and Sensing Study of Perovskite CaCu3Ti4O12 Nanopowders

Yang Tian Department of Chemistry, Capital Normal University, Beijing, P. R. China
,
Xiaojie Zhang Department of Chemistry, Capital Normal University, Beijing, P. R. China
,
Yiyi Yang Department of Chemistry, Capital Normal University, Beijing, P. R. China
,
Zhen Liu Department of Chemistry, Capital Normal University, Beijing, P. R. China
&
Xiaozhu Huang Department of Chemistry, Capital Normal University, Beijing, P. R. China
Pages 188-195 | Received 12 Jul 2010, Accepted 24 Aug 2010, Published online: 17 Oct 2011
 
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Abstract

CaCu3Ti4O12 nanopowders were fabricated by a facile effective sol-gel route using tetrabutyl titanate, calcium acetate and cupric nitrate as precursors. The intermediate xerogel was characterized by thermal analyzer and the products with different calcination temperature were then studied by IR spectrum. Further X-ray diffraction, transmission electronic microscopy, high-resolution transmission electron microscopy and energy dispersive X-ray spectrum were used to characterize the prepared CaCu3Ti4O12 nanopowders. Additionally, the obtained CaCu3Ti4O12 nanopowders were investigated as a gas sensitive material responding to ethanol atmosphere, and it showed high sensitivity for ethanol gas.

5. Acknowledgment

This work was supported by Beijing Natural Science Foundation (2103048).

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