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Significant enhancement of electrical transport properties of thermoelectric Ca3Co4O9+δ through Yb doping

✍ Scribed by Xueyan Song; Yun Chen; Song Chen; Ever Barbero; Evan L. Thomas; Paul Barnes

Book ID
116890806
Publisher
Elsevier Science
Year
2012
Tongue
English
Weight
740 KB
Volume
152
Category
Article
ISSN
0038-1098

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Ca 3 À x Er x Co 4 O 9 + d (x ¼ 0, 0.05, 0.15, 0.3 and 0.5) samples were prepared using a sol-gel method followed by hot-pressing sintering technique. Powder X-ray diffraction analysis showed the single-phases of Ca 3 À x Er x Co 4 O 9 + d were obtained up to x ¼ 0.3 and the crystallinity of the sam