Enthalpies of formation of Mo-Pt alloys by high temperature direct reaction synthesis calorimetry

My Y. Benarchid; N. David; J. M. Fiorani; M. Vilasi; T. Benlaharche

doi:10.1016/j.jct.2008.10.006

Enthalpies of formation of Mo-Pt alloys by high temperature direct reaction synthesis calorimetry

My Y. Benarchid, N. David, J. M. Fiorani, M. Vilasi, T. Benlaharche

Univ.́ Henri Poincaré

Research output: Contribution to journal › Article › peer-review

Abstract

In the present work, the enthalpies of formation of Mo-Pt alloys are determined by high temperature direct reaction synthesis calorimetry at 1768 K (Mo₆Pt, ε′, MoPt₂, and (Pt) solid solution) and 1526 K (MoPt). The following values are reported: Δ_f H^{1768 K} (Mo₆ Pt) = - 13.0 ± 1.9 kJ / mol · at.; Δ_f H^{{ring operator}} (ε^′) = - 26.1 ± 4.9 kJ / mol · at.; Δ_f H^{{ring operator}} (MoPt) = - 27.7 ± 3.9 kJ / mol · at.; Δ_f H^{{ring operator}} (MoPt₂) = - 36.9 ± 1.8 kJ / mol · at.; Δ_f H^{{ring operator}} (Pt) = - 27.1 ± 4.2 kJ / mol · at. The results are compared with predicted ab initio data.

Original language	English
Pages (from-to)	383-385
Number of pages	3
Journal	Journal of Chemical Thermodynamics
Volume	41
Issue number	3
DOIs	https://doi.org/10.1016/j.jct.2008.10.006
Publication status	Published - 1 Mar 2009
Externally published	Yes

Keywords

Calorimetry
Intermetallics compounds
Platinum-group
Thermodynamics

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10.1016/j.jct.2008.10.006

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@article{ce54703d15af4103a5077acb11cc0d01,

title = "Enthalpies of formation of Mo-Pt alloys by high temperature direct reaction synthesis calorimetry",

abstract = "In the present work, the enthalpies of formation of Mo-Pt alloys are determined by high temperature direct reaction synthesis calorimetry at 1768 K (Mo6Pt, ε′, MoPt2, and (Pt) solid solution) and 1526 K (MoPt). The following values are reported: Δf H1768 K (Mo6 Pt) = - 13.0 ± 1.9 kJ / mol · at.; Δf H\{ring operator\} (ε′) = - 26.1 ± 4.9 kJ / mol · at.; Δf H\{ring operator\} (MoPt) = - 27.7 ± 3.9 kJ / mol · at.; Δf H\{ring operator\} (MoPt2) = - 36.9 ± 1.8 kJ / mol · at.; Δf H\{ring operator\} (Pt) = - 27.1 ± 4.2 kJ / mol · at. The results are compared with predicted ab initio data.",

keywords = "Calorimetry, Intermetallics compounds, Platinum-group, Thermodynamics",

author = "Benarchid, \{My Y.\} and N. David and Fiorani, \{J. M.\} and M. Vilasi and T. Benlaharche",

year = "2009",

month = mar,

day = "1",

doi = "10.1016/j.jct.2008.10.006",

language = "English",

volume = "41",

pages = "383--385",

journal = "Journal of Chemical Thermodynamics",

issn = "0021-9614",

number = "3",

}

TY - JOUR

T1 - Enthalpies of formation of Mo-Pt alloys by high temperature direct reaction synthesis calorimetry

AU - Benarchid, My Y.

AU - David, N.

AU - Fiorani, J. M.

AU - Vilasi, M.

AU - Benlaharche, T.

PY - 2009/3/1

Y1 - 2009/3/1

N2 - In the present work, the enthalpies of formation of Mo-Pt alloys are determined by high temperature direct reaction synthesis calorimetry at 1768 K (Mo6Pt, ε′, MoPt2, and (Pt) solid solution) and 1526 K (MoPt). The following values are reported: Δf H1768 K (Mo6 Pt) = - 13.0 ± 1.9 kJ / mol · at.; Δf H{ring operator} (ε′) = - 26.1 ± 4.9 kJ / mol · at.; Δf H{ring operator} (MoPt) = - 27.7 ± 3.9 kJ / mol · at.; Δf H{ring operator} (MoPt2) = - 36.9 ± 1.8 kJ / mol · at.; Δf H{ring operator} (Pt) = - 27.1 ± 4.2 kJ / mol · at. The results are compared with predicted ab initio data.

AB - In the present work, the enthalpies of formation of Mo-Pt alloys are determined by high temperature direct reaction synthesis calorimetry at 1768 K (Mo6Pt, ε′, MoPt2, and (Pt) solid solution) and 1526 K (MoPt). The following values are reported: Δf H1768 K (Mo6 Pt) = - 13.0 ± 1.9 kJ / mol · at.; Δf H{ring operator} (ε′) = - 26.1 ± 4.9 kJ / mol · at.; Δf H{ring operator} (MoPt) = - 27.7 ± 3.9 kJ / mol · at.; Δf H{ring operator} (MoPt2) = - 36.9 ± 1.8 kJ / mol · at.; Δf H{ring operator} (Pt) = - 27.1 ± 4.2 kJ / mol · at. The results are compared with predicted ab initio data.

KW - Calorimetry

KW - Intermetallics compounds

KW - Platinum-group

KW - Thermodynamics

U2 - 10.1016/j.jct.2008.10.006

DO - 10.1016/j.jct.2008.10.006

M3 - Article

AN - SCOPUS:58149201010

SN - 0021-9614

VL - 41

SP - 383

EP - 385

JO - Journal of Chemical Thermodynamics

JF - Journal of Chemical Thermodynamics

IS - 3

ER -

Enthalpies of formation of Mo-Pt alloys by high temperature direct reaction synthesis calorimetry

Abstract

Keywords

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