Thermochemistry of some binary lead and transition metal compounds by high temperature direct synthesis calorimetry

Autor:	S.V. Meschel, Xing-Qiu Chen, Philip Nash, P. Wei
Rok vydání:	2015
Předmět:	Semi empirical model Chemistry Mechanical Engineering Metals and Alloys Ab initio Binary number Calorimetry Standard enthalpy of formation Transition metal Mechanics of Materials Materials Chemistry Thermochemistry Physical chemistry Standard enthalpy change of formation
Zdroj:	Journal of Alloys and Compounds. 633:183-187
ISSN:	0925-8388
DOI:	10.1016/j.jallcom.2015.01.195
Popis:	The standard enthalpies of formation of some binary lead and transition metal compounds have been measured by high temperature direct synthesis calorimetry. The reported results are: Pb3Sc5(-61.3 +/- 2.9); PbTi4(-16.6 +/- 2.4); Pb3Y5(-64.8 +/- 3.6); Pb3Zr5(-50.6 +/- 3.1); PbNb3(-10.4 +/- 3.4); PbRh(-16.5 +/- 3.3); PbPd3(-29.6 +/- 3.1); PbPt(-34.7 +/- 3.3) kJ/mole of atoms. We will compare our results with previously published measurements. We will also compare the experimental measurements with enthalpies of formation of transition metal compounds with elements in the same vertical column in the periodic table. We will compare our measurements with predicted values on the basis of the semi empirical model of Miedema and coworkers and with ab initio values when available. (C) 2015 Elsevier B.V. All rights reserved.
Databáze:	OpenAIRE
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