1. bookVolume 33 (2015): Issue 1 (March 2015)
Journal Details
License
Format
Journal
eISSN
2083-134X
First Published
16 Apr 2011
Publication timeframe
4 times per year
Languages
English
access type Open Access

High temperature thermoelectric properties of PbTe prepared by high pressure method

Published Online: 13 Mar 2015
Volume & Issue: Volume 33 (2015) - Issue 1 (March 2015)
Page range: 152 - 156
Received: 30 Jul 2014
Accepted: 11 Oct 2014
Journal Details
License
Format
Journal
eISSN
2083-134X
First Published
16 Apr 2011
Publication timeframe
4 times per year
Languages
English
Abstract

Highly dispersed olive-like NiS particles were synthesized in a liquid-liquid biphasic system at room temperature, where nickel xanthate in organic solvents (toluene and benzene) and sodium sulfide in water solution were used as nickel and sulfide sources, respectively. NiS particles were formed at the stabilized phase interface. The structures, chemical composition and optical characteristics of the products were investigated by transmission electron microscopy, scanning electron microscopy, X-ray photoelectron spectroscopy and ultraviolet-visible spectroscopy. The organic solvents obviously influenced the morphology of the NiS particles. The olive-like NiS with smooth surface and sharp ends was obtained at benzene/water interface, while spindle-like NiS particles with rough surface and circle ends were formed when using toluene as a solvent. Analogously, chainlike Bi2S3 nanowires were produced at chloroform/water interface. The effect of the experiment parameters including reaction time, solvent and concentration of reactants on the size and morphology of the products was discussed in detail and a possible formation mechanism was suggested.

Keywords

[1] DISALVO F., Science, 285 (5428) (1999), 703.10.1126/science.285.5428.703Search in Google Scholar

[2] GOLDSMID H., Electronic Refrigeration, Pion, London, 1986, p. 10.Search in Google Scholar

[3] ROWE D., CRC Handbook of Thermoelectrics, CRC Press, New York, 1995.Search in Google Scholar

[4] BADDING J., Annu. Rev. Mater. Res., 28 (1998), 631.10.1146/annurev.matsci.28.1.631Search in Google Scholar

[5] ZHU P., IMAIY., ISODA Y., SHINOHARA Y., JIA X., REN G., ZOU G., Mater. Trans., 45 (11) 2004, 3102.10.2320/matertrans.45.3102Search in Google Scholar

[6] ZHU P., JIA X., CHEN H., CHEN L., LI D., GUO W., MA H., REN G., ZOU G., Chinese J. High Pressure Phys., 16 (3) (2002), 161.Search in Google Scholar

[7] MCGUIRE M., MAIK A., DISALVO F., J. Alloy. Compd., 460 (2008), 8.10.1016/j.jallcom.2007.05.072Search in Google Scholar

[8] MAHAN G., Solid State Phys., 51 (1998), 81.10.1016/S0081-1947(08)60190-3Search in Google Scholar

[9] PEI Y., LIU Y., J. Alloy. Compd., 514 (2012), 40.10.1016/j.jallcom.2011.10.036Search in Google Scholar

[10] OVSYANNIKOV S., SHCHENNIKOV V., Appl. Phys. Lett., 90 (2007), 122103.10.1063/1.2715123Search in Google Scholar

[11] LI H., CAI K., WANG H., WANG L., YIN J., ZHOU C., J. Solid State Chem., 182 (4) (2009), 869.10.1016/j.jssc.2009.01.017Search in Google Scholar

[12] MENG J., POLVANI D., JONES C., DISALVO F., FEI Y., BADDING J., Chem. Mater. 12 (2000), 197.10.1021/cm990540zSearch in Google Scholar

[13] GODWAL B., JAYARAMAN A., MEENAKSHI S., RAO R., SIKKA S., VIJAYAKUMAR V., Phys. Rev. B, 57 (1998), 773.10.1103/PhysRevB.57.773Search in Google Scholar

[14] SHEKAR N., POLVANI D., MENG J., BADDING J., Physica B, 358 (2005), 14.10.1016/j.physb.2004.12.020Search in Google Scholar

[15] ZHU P., IMAI Y., ISODA Y., SHINOHARA Y., JIA X., ZOU G., Chinese Phys. Lett., 22 (2005), 2103.Search in Google Scholar

Recommended articles from Trend MD

Plan your remote conference with Sciendo