Heat capacity of vitreous GeS2

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F15%3A39899428" target="_blank" >RIV/00216275:25310/15:39899428 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.jct.2014.09.021" target="_blank" >http://dx.doi.org/10.1016/j.jct.2014.09.021</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jct.2014.09.021" target="_blank" >10.1016/j.jct.2014.09.021</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Heat capacity of vitreous GeS2

Popis výsledku v původním jazyce

The heat capacity for GeS2 glass was measured by relaxation method, adiabatic calorimetry and DSC from T/K = (2 to 600). Values of the standard molar enthalpy and the standard molar entropy are 12.713 kJ.mol(-1) and 88.46 J.K-1.mol(-1), respectively. Themolar heat capacity data for GeS2 glass were compared with those reported previously for crystalline alpha-GeS2. The molar heat capacity of the glass is higher than of the crystal above T = 75 K. However, the molar heat capacity of the glass is lower than that of crystal in the temperature range between (23 and 70) K. This anomaly can probably be attributed to structural differences between vitreous and crystalline state considering that the medium range order of the germanium sulfide glass is similarto that of the crystalline polymorph alpha-GeS2 although the dimensionality of network is probably higher than 2D. The heat capacity of GeS2 glass obtained by quenching from equilibrium liquid at T = 1270 K is higher than that of the glas

Název v anglickém jazyce

Heat capacity of vitreous GeS2

Popis výsledku anglicky

The heat capacity for GeS2 glass was measured by relaxation method, adiabatic calorimetry and DSC from T/K = (2 to 600). Values of the standard molar enthalpy and the standard molar entropy are 12.713 kJ.mol(-1) and 88.46 J.K-1.mol(-1), respectively. Themolar heat capacity data for GeS2 glass were compared with those reported previously for crystalline alpha-GeS2. The molar heat capacity of the glass is higher than of the crystal above T = 75 K. However, the molar heat capacity of the glass is lower than that of crystal in the temperature range between (23 and 70) K. This anomaly can probably be attributed to structural differences between vitreous and crystalline state considering that the medium range order of the germanium sulfide glass is similarto that of the crystalline polymorph alpha-GeS2 although the dimensionality of network is probably higher than 2D. The heat capacity of GeS2 glass obtained by quenching from equilibrium liquid at T = 1270 K is higher than that of the glas

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

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Journal of Chemical Thermodynamics

ISSN

0021-9614

e-ISSN

—

Svazek periodika

81

Číslo periodika v rámci svazku

February

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

101-108

Kód UT WoS článku

000345253800012

EID výsledku v databázi Scopus

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