Enthalpies of formation of some 3d Transition Metal-Antimony compounds by high temperature direct synthesis calorimetry

In this work we have performed a calorimetric investigation of some thermoelectric compounds, which are useful for energy savings, but do not contain toxic or extremely rare elements. The standard enthalpies of formation at 298 K of some binary antimony and transition metal (TM) compounds have been measured by high temperature direct synthesis calorimetry. The reported results are: ScSb(-112.0 +/- 3.1); Sc5Sb3 (-95.4 +/- 2.8) TiSb (-63.3 +/- 2.4); CrSb (-3.0 +/- 2.7); FeSb2 (0 +/- 2.5); Mn2Sb (-9.2 +/- 1.5); CoSb (-19.6 +/- 1.3); CoSb3 (-20.1 +/- 2.0); NiSb (-35.3 +/- 1.8). In kJ/mole of atoms. We compare our experimental measurement results with some previously published measurements and with predicted values by ab initio calculations. (C) 2020 Elsevier B.V. All rights reserved.