Heat capacity of vitreous GeS2

Result code in 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>

Result on the web

<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>

Result language

angličtina

Original language name

Heat capacity of vitreous GeS2

Original language description

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

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CF - Physical chemistry and theoretical chemistry

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

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

Publication year

2015

Confidentiality

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

Name of the periodical

Journal of Chemical Thermodynamics

ISSN

0021-9614

e-ISSN

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Volume of the periodical

81

Issue of the periodical within the volume

February

Country of publishing house

US - UNITED STATES

Number of pages

8

Pages from-to

101-108

UT code for WoS article

000345253800012

EID of the result in the Scopus database

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