本文采用溶剂热法制备热电纳米材料Bi2Te3,研究了不同含水量对所得产物组成与形貌的影响.利用X射线衍射(XRD)、能谱仪(EDS)、冷场发射扫描电子显微镜(FESEM)和透射电子显微镜(TEM)等对产物进行了详细表征分析.结果表明,反应体系无水,也可以获得标准的六角形Bi2Te3纳米片.随着含水量增加,产物出现团聚现象;含水量大于一定值时,开始出现Te和Bi2TeO5杂相.
参考文献
| [1] | Seebeck T J.Magnetic polarization of metals and minerals[J].Abhandlungen der Deutschen Akademie der Wissenschaften zu Berlin,1822,265:1822~1823. |
| [2] | Hicks L D,Dresselhaus M S .Effect of quantum-well structures on the thermoelectric figure of merit[J].Physical Review B,1993,47(19):12727~12731.,1993. |
| [3] | Hicks L D,Dresselhaus M S .Thermoelectric figure of merit of a one-dimensional conductor[J].Physical Review B,1993,47(24):16631~16634.,1993. |
| [4] | Dresselhaus M S,Chen G,Tang M Y,et al .New Directions for Low-Dimensional Thermoelectric Materials[J].Advanced Materials,2007,19(8):1043~1053.,2007. |
| [5] | Vineis C J,Shakouri A,Majumdar A,Kanatzidis M G .Nanostructured thermoelectrics:big efficiency gains from small features[J].Advanced Materials,2010,22(36):3970~3980.,2010. |
| [6] | Poudeu P F P,D'Angelo J,Downey A D,et al .High thermoelectric figure of merit and nanostructuring in bulk p-type Na1-x PbmSbyTem+2[J].Angewandte Chemie International Edition,2006,118(23):3919~3923.,2006. |
| [7] | DiSalvo F J .Thermoelectric cooling and power generation[J].Science,1999,285(5428):703~706.,1999. |
| [8] | Poudel B,Hao Q,Ma Y,et al .High-thermoelectric performance of nanostructured bismuth antimony telluride bulk alloys[J].Science,2008,320(5876):634~638.,2008. |
| [9] | 任攀,吴荣归,张艳华,徐桂英.稀土Gd对热压烧结Bi_2Te_3基材料热电性能的影响[J].材料科学与工程学报,2010(02):279-282,316. |
| [10] | 孙晨曦,周丽娜,张孝彬,赵新兵,沈美.Bi_2Te_3/碳纳米管复合材料的制备方法[J].材料科学与工程学报,2010(02):296-299,303. |
| [11] | Prieto Amy L,Sander Melissa S,et al .Electrodeposition of ordered Bi2Te3 nanowire arrays[J].Journal of the American Chemical Society,2001,123 |
| [12] | Toprak M,Zhang Y,Muhammed M .Chemical alloying and characterization of nanocrystalline bismuth telluride[J].Materials Letters,2003,57(24):3976~3982.,2003. |
| [13] | 孙正亮,陈立东.化学浴沉积法合成硒化铋纳米结构薄膜[J].材料科学与工程学报,2010(02):248-250,231. |
| [14] | 杜永,李晖,安百俊,蔡克峰.Bi_2Te_3/Bi_2Se_3纳米复合热电材料的制备和性能[J].材料科学与工程学报,2010(02):251-255. |
| [15] | Zhou L,Zhang X B,Zhao X B,Zhu T J,Qin Y Q .Influence of NaOH on the synthesis of Bi2Te3 via a low-temperature aqueous chemical method[J].Journal of Materials Science,2009,44(13):3528~3532.,2009. |
| [16] | Zhang G Q,Wang W,Lu X L,Li X G .Solvothermal synthesis of Ⅴ-Ⅵ binary and ternary hexagonal platelets:The oriented attachment mechanism[J].Crystal Growth & Design,2008,9(1):145~150.,2008. |
| [17] | Zhao X B,Ji X H,Zhang Y H,Zhu T J,Tu J P,Zhang X B .Bismuth telluride nanotubes and the effects on the thermoelectric properties of nanotube-containing nanocomposites[J].Applied Physics Letters,2005,86(6):062111.,2005. |
| [18] | Ji X,Zhang B,Tritt T M,Kolis J W,Kumbhar A .Solutionchemical synthesis of nano-structured Bi2Te3 and PbTe thermoelectric materials[J].Journal Electronic Materials,2007,36(7):721~726.,2007. |
| [19] | 李亚丽,蒋俊,许高杰,段雷,李志祥,王琴,李勇,崔平.Bi2Te3基热电材料的湿化学还原法合成反应机制[J].稀有金属材料与工程,2007(z2):233-235. |
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