In the search for new intermetallic materials with high thermoelectric performances, the Co–Sb–S ternary system has been explored and polycrystalline CoSbS samples have been prepared by a vapour phase technique starting from the pure elements. The crystal cell of CoSbS belongs to the Pbca space group and shows an orthorhombic structural arrangement with the following lattice parameters: a = 5.8341(2) Å; b = 5.9477(2) Å, and c = 11.6540(4) Å. The structure belongs to the pyrite–marcasite family, as Co forms tilted corner- and edge-sharing octahedra with three Sb and three S atoms. Scanning electronic microscopy (SEM), electron-probe microanalysis (EPMA) and X-ray powder diffraction were used to investigate the microstructure and to carry out the structural analysis; the crystal structure was refined by the Rietveld method using the DBWS-9807 program. The thermal stability of CoSbS was investigated referring to the ternary Co–S–Sb phase diagram and by differential thermal analysis (DTA) measurements. Thermoelectric power measurements at room temperature were also performed by a home-made instrument.
6. Jiang, YP, Jia, XP, Su, TC, Dong, N, Yu, FR, Tian, YJ, Guo, W, Xu, HW, Deng, L, Ma, HA. Thermoelectric properties of SmxCo4Sb12 prepared by high pressure and high temperature. J Alloys Compd2010493:535–538.
Jiang, YP, Jia, XP, Su, TC, Dong, N, Yu, FR, Tian, YJ, Guo, W, Xu, HW, Deng, L, Ma, HA. Thermoelectric properties of SmxCo4Sb12 prepared by high pressure and high temperature. J Alloys Compd2010493:535–53810.1016/j.jallcom.2009.12.150.)| false
Kitagawa, H, Wakatsuki, M, Nagaoka, H, Noguchi, H, Isoda, Y, Hasezaki, K, Noda, Y. Temperature dependence of thermoelectric properties of Ni-doped CoSb3. J Phys Chem Solids200566:1635–163910.1016/j.jpcs.2005.05.077.)| false
Vaqueiro, P, Sobany, GG, Stindl, M. Structure and electrical transport properties of the ordered skutterudites MGe1.5S1.5 (M = Co, Rh, Ir). J Solid State Chem2008181:768–77610.1016/j.jssc.2008.01.025.)| false
Vaqueiro, P, Sobany, GG, Guinet, F, Leyva-Bailen, P. Synthesis and characterization of the anion-ordered tellurides MGeTe. Solid State Sci200911:1077–108210.1016/j.solidstatesciences.2009.02.012.)| false
Young, RA, Sakthiel, A, Moss, TS, Paiva-Santos, CO. DBWS-9411, an upgrade of the DBWS*.* programs for Rietveld refinement with PC and mainframe computers. J Appl Cryst199528:366–36710.1107/S0021889895002160.)| false