Heat capacity of 1-hexadecyl-3-methylimidazolium based ionic liquids in solid and liquid phase

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F20%3A00524605" target="_blank" >RIV/67985858:_____/20:00524605 - isvavai.cz</a>

Výsledek na webu

<a href="http://hdl.handle.net/11104/0308945" target="_blank" >http://hdl.handle.net/11104/0308945</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.molliq.2020.112847" target="_blank" >10.1016/j.molliq.2020.112847</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Heat capacity of 1-hexadecyl-3-methylimidazolium based ionic liquids in solid and liquid phase

Popis výsledku v původním jazyce

In this work, two ionic liquids with a 1-hexadecyl-3-methylimidazolium cation were synthesized with differentanions. Chloride and saccharinate, respectively, both of them showing melting points above room temperature,ranging between (324.15 and 338.15) K and enthalpies of fusion close to or higher than 100 J/g, making them po-tentially suitable phase-change materials (PCMs) for latent heat storage. This application potential can be en-hanced by a suitably large heat capacity and thermal conductivity of the material both in the liquid and solidphase. Heat capacity was therefore measured in this work as a function of temperature using the differentialscanning calorimetry (DSC) to determine how it is affected by the anion structure. Care has been taken to eval-uate the influence of the phase change on the measured data. The experimental data have then been analyzed bymeans of methods based on mathematicalgnostics (MG). As a non-statistical approach towards data uncertainty,MG enabled us to analyze the underlying phenomena that affect the value of the experimental heat capacity.

Název v anglickém jazyce

Heat capacity of 1-hexadecyl-3-methylimidazolium based ionic liquids in solid and liquid phase

Popis výsledku anglicky

In this work, two ionic liquids with a 1-hexadecyl-3-methylimidazolium cation were synthesized with differentanions. Chloride and saccharinate, respectively, both of them showing melting points above room temperature,ranging between (324.15 and 338.15) K and enthalpies of fusion close to or higher than 100 J/g, making them po-tentially suitable phase-change materials (PCMs) for latent heat storage. This application potential can be en-hanced by a suitably large heat capacity and thermal conductivity of the material both in the liquid and solidphase. Heat capacity was therefore measured in this work as a function of temperature using the differentialscanning calorimetry (DSC) to determine how it is affected by the anion structure. Care has been taken to eval-uate the influence of the phase change on the measured data. The experimental data have then been analyzed bymeans of methods based on mathematicalgnostics (MG). As a non-statistical approach towards data uncertainty,MG enabled us to analyze the underlying phenomena that affect the value of the experimental heat capacity.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Journal of Molecular Liquids

ISSN

0167-7322

e-ISSN

—

Svazek periodika

305

Číslo periodika v rámci svazku

MAY 1

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

5

Strana od-do

112847

Kód UT WoS článku

000525306200045

EID výsledku v databázi Scopus

2-s2.0-85081165260