本文以溶胶-凝胶法制备了聚对苯撑纳米复合Zn0.9 Co0.1O基(PPP@Zn0.9Co0.1O)热电材料.Zn0.9 Co0.1O材料的特征衍射峰与标准卡片相对应,样品的单相性较好.在Zn0.9Co0.1O基体中,镶嵌着呈不规则圆形的聚对苯撑纳米颗粒,大小在50 nm以下.添加高电导率的聚对苯撑纳米颗粒后,PPP@Zn0.9 Co0.1O材料体系的电导率大幅度增加.经过Co掺杂之后的Zn0.9Co0.1O材料样品在提高电导率同时,使得Seebeck系数降低;而添加PPP进行复合之后,随着PPP添加量的增加,Seebeck系数先增加后减小.最大的ZT值为9％(wt) PPP@Zn0.9Co0.1O材料在900K时取得,达到0.084.
参考文献
| [1] | Hochbaum AI;Chen R;Delgado RD;Liang W;Garnett EC;Najarian M;Majumdar A;Yang P .Enhanced thermoelectric performance of rough silicon nanowires.[J].Nature,2008(7175):163-167. |
| [2] | G.JEFFREY SNYDER;ERIC S.TOBERER .Complex thermoelectric materials[J].Nature materials,2008(2):105-114. |
| [3] | Gerald Mahan;Brian Sales;Jeff Sharp .THERMOELECTRIC MATERIALS: NEW APPROACHES TO AN OLD PROBLEM[J].Physics Today,1997(3):42-47. |
| [4] | Joseph R. Sootsman;Duck Young Chung;Mercouri G. Kanatzidis .New and Old Concepts in Thermoelectric Materials[J].Angewandte Chemie,2009(46):8616-8639. |
| [5] | G. D. Mahan;J. O. Sofo .The best thermoelectric[J].Proceedings of the National Academy of Sciences of the United States of America,1996(15):7436-7439. |
| [6] | L.D. Zhao;B.-P. Zhang;J.-F. Li .Enhanced thermoelectric and mechanical properties in textured n-type Bi_2Te_3 prepared by spark plasma sintering[J].Solid state sciences,2008(5):651-658. |
| [7] | G. Pernot;M. Stoffel;I. Savic .Precise control of thermal conductivity at the nanoscale through individual phonon-scattering barriers[J].Nature materials,2010(6):491-495. |
| [8] | Pichanusakorn, P;Bandaru, P .Nanostructured thermoelectrics[J].Materials Science & Engineering, R. Reports: A Review Journal,2010(2/4):19-63. |
| [9] | Bed Poudel;Qing Hao;Yi Ma;Yucheng Lan;Austin Minnich;Bo Yu;Xiao Yan;Dezhi Wang;Andrew Muto;Daryoosh Vashaee .High-Thermoelectric Performance of Nanostructured Bismuth Antimony Telluride Bulk Alloys[J].Science,2008(5876):634-638. |
| [10] | Joseph P. Heremans;Vladimir Jovovic;Eric S. Toberer;Ali Saramat;Ken Kurosaki;Anek Charoenphakdee;Shinsuke Yamanaka;G. Jeffrey Snyder .Enhancement of Thermoelectric Efficiency in PbTe by Distortion of the Electronic Density of States[J].Science,2008(5888):554-557. |
| [11] | Dubey, N.;Leclerc, M. .Conducting polymers: Efficient thermoelectric materials[J].Journal of Polymer Science, Part B. Polymer Physics,2011(7):467-475. |
| [12] | Kunihito Koumoto;Yifeng Wang;Ruizhi Zhang;Atsuko Kosuga;Ryoji Funahashi.Oxide Thermoelectric Materials: A Nanostructuring Approach[J].Annual review of materials research,2010:363-394. |
| [13] | Ohtaki M.;Eguchi K.;Arai H.;Tsubota T. .HIGH-TEMPERATURE THERMOELECTRIC PROPERTIES OF (ZN1-XALX)O[J].Journal of Applied Physics,1996(3):1816-1818. |
| [14] | Kyoung Hun Kim;Seung Hwan Shim;Kwang Bo Shim .Microstructural and Thermoelectric Characteristics of Zinc Oxide-Based Thermoelectric Materials Fabricated Using a Spark Plasma Sintering Process[J].Journal of the American Ceramic Society,2005(3):628-632. |
| [15] | H. Colder;E. Guilmeau;C. Harnois .Preparation of Ni-doped ZnO ceramics for thermoelectric applications[J].Journal of the European Ceramic Society,2011(15):2957-2963. |
| [16] | Jood, P.;Peleckis, G.;Wang, X.;Dou, S.X. .Effect of gallium doping and ball milling process on the thermoelectric performance of n-type ZnO[J].Journal of Materials Research,2012(17):2278-2285. |
| [17] | Malen, JA;Yee, SK;Majumdar, A;Segalman, RA .Fundamentals of energy transport, energy conversion, and thermal properties in organic-inorganic heterojunctions[J].Chemical Physics Letters,2010(4/6):109-122. |
| [18] | See, K.C.;Feser, J.P.;Chen, C.E.;Majumdar, A.;Urban, J.J.;Segalman, R.A. .Water-processable polymer-nanocrystal hybrids for thermoelectrics[J].Nano letters,2010(11):4664-4667. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%