Thermoelectric Characterization of (Na1-yMy)1.6Co2O4(M=K,Ca,Sr)

材料科学技术（英文）, 2006, 22(4): 526-528.

^1, , ^2, , ^3,

1.School of Material and Metallurgy, Northeastern University, Shenyang 110004, China

2.University of Science and Technology Beijing, Beijing 100083, China

3.School of Material and Metallurgy, Northeastern University, Shenyang 110004, China

基金项目: 辽宁省自然科学基金(20042018)

Thermoelectric Characterization of (Na1-yMy)1.6Co2O4(M=K,Ca,Sr)

Oxide materials NaCo2O4 and (Na1-yMy)1.6Co2O4 (M=K, 0.05≤y≤0.35; M=Ca, Sr, 0.10≤y≤0.40) were prepared by a sol-gel method. Experimental results indicated that the Seebeck coefficient and the Powerfactor of NaCo2O4 were improved by doping Ca and Sr but not by K. The Power-factor of NaCo2O4 is in its maximum, 1.68×10-4 W·m-1·K-2 and 11% bigger than that of the original one when the dopant fraction of Ca was 0.1. Doping Sr makes NaCo2O4 have the biggest Power-factor, 1.68×10-4 W·m-1·K-2 that is 50% bigger than the non-doping oxide. The experimental results indicate that suitable dopants and addition amounts could improve the thermoelectric properties of NaCo2O4 greatly.

参考文献

[1]	G Mahan;B Sales .[J].Journal of Sharp:Phys Today,1997,50(02):42.
[2]	Yun ZHOU;Rong SHENG;Qinnan SHI;Jialin SUN .[J].J Kunming Univ Sci Technol,2003,28(03):14.
[3]	Q Shen;L Chen;J Yang;G.P.Meisner, T.Goto T.Hirai.[A].IEEE,Beijing,2001:247.
[4]	J B Wu;J Nan;X S Zhou;S.Zhou, S.L.Chen C.W.Nan.[A].IEEE,Beijing,2001:201.
[5]	C Fonstad;R H Rediker .[J].Journal of Applied Physiology,1971,42(07):2911.
[6]	V Ponnambalam;U V Varadaraju .[J].Physical,1994,C227(03):102.
[7]	Y Miyazaki;K Kudo;M Akoshima;Y.Ono, Y.Koike T.Kajitani .[J].Japanese Journal of Applied Physics,2000,39(6A):531.
[8]	J Nan;X S Wu;Y Zhou;S.L.Chen C.W.Nan.[A].IEEE,Beijing,2001:207.
[9]	T Itoh;K Kawata;T Kitajima;I.Terasaki.[A].Nagoya,Japan,1998:595.
[10]	Weida ZHANG;Lianmeng ZHANG;Xinfeng TANG;Mingkun WEI .[J].Journal of Wuhan University of Technology,2002,24(04):24.
[11]	H Yakabe;K Kikuchi;I Terasaki;Y.Sasago K.Uchinokura.[A].IEEE,Dresden,1997:523.
[12]	T Itoh;T Kawata;T Kitajima;I.Terasaki.[A].Nagoya,Japan,1998:567.
[13]	H Yakabe;K Fujita;K Nakamura.[A].IEEE,Nagoya,1998:551.
[14]	Y Ono;R Ishikawa;Y Miyazaki;Y.Ishii, Y.Morii T.Kajitani .[J].Journal of Solid State Chemistry,2002,166(04):177.
[15]	S Tajima;T Tani;S Isobe;K.Koumoto .[J].Materials Science and Engineering,2001,B86:20.
[16]	I Terasaki .[J].Physical,2003,B328(07):63.
[17]	Pengwei WANG;Feng CHEN;Zheng HUANG;Yuxin MA .[J].Mining Metall,1998,7(01):40.
[18]	M Ohtaki;Y K Ubo;Eguchik.[A].IEEE,Nagoga,1998:559.
[19]	N Tomoya;I Mikio;K Shigeru;M.Kazuhiko N.Hiroshi .[J].Journal of Alloys and Compounds,2003,348(19):263.

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Thermoelectric Characterization of (Na1-yMy)1.6Co2O4(M=K,Ca,Sr)

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