Thermodynamic properties of rock-salt ZnO

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F13%3A43895704" target="_blank" >RIV/60461373:22310/13:43895704 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.tca.2013.08.004" target="_blank" >http://dx.doi.org/10.1016/j.tca.2013.08.004</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.tca.2013.08.004" target="_blank" >10.1016/j.tca.2013.08.004</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Thermodynamic properties of rock-salt ZnO

Popis výsledku v původním jazyce

Zinc oxide represents an important material with a wide variety of applications. At the temperature T=298.15 K and standard pressure p(o) = 100 kPa ZnO exists in the hexagonal wurtzite structure, which undergoes a transformation to rock salt polymorph under the pressure of approximate to 9 GPa. A consistent set of thermodynamic functions for ZnO in the high-pressure rock salt modification has been established on the basis of thorough evaluation of experimental and calculated data. Using literature datafor wurtzite ZnO, standard enthalpy of formation at 298.15 K for rock salt ZnO have been assessed as Delta H-f(o)(298.15 K)= -326.69 kJ mol(-1). Standard entropy S-m(o)(298.15 K)=45.42 J K-1 mol(-1) was derived from published low temperature heat capacity. The temperature dependence of the standard molar heat capacity above room temperature in the form C-pm(o) = 45.91 + 0.009089T - 604976/T-2 + 4.159 x 10(-6)T(2) (J K-1 mol(-1)) has been derived. The dataset is consistent with the transi

Název v anglickém jazyce

Thermodynamic properties of rock-salt ZnO

Popis výsledku anglicky

Zinc oxide represents an important material with a wide variety of applications. At the temperature T=298.15 K and standard pressure p(o) = 100 kPa ZnO exists in the hexagonal wurtzite structure, which undergoes a transformation to rock salt polymorph under the pressure of approximate to 9 GPa. A consistent set of thermodynamic functions for ZnO in the high-pressure rock salt modification has been established on the basis of thorough evaluation of experimental and calculated data. Using literature datafor wurtzite ZnO, standard enthalpy of formation at 298.15 K for rock salt ZnO have been assessed as Delta H-f(o)(298.15 K)= -326.69 kJ mol(-1). Standard entropy S-m(o)(298.15 K)=45.42 J K-1 mol(-1) was derived from published low temperature heat capacity. The temperature dependence of the standard molar heat capacity above room temperature in the form C-pm(o) = 45.91 + 0.009089T - 604976/T-2 + 4.159 x 10(-6)T(2) (J K-1 mol(-1)) has been derived. The dataset is consistent with the transi

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

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Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2013

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Thermochimica Acta

ISSN

0040-6031

e-ISSN

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Svazek periodika

572

Číslo periodika v rámci svazku

NOV 20 2013

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

5

Strana od-do

1-5

Kód UT WoS článku

000327825100001

EID výsledku v databázi Scopus

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