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Ionic Liquids as Thermal Energy Storage Materials: On the Importance of Reliable Data Analysis in Assessing Thermodynamic Data.
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SYSNO ASEP 0511975 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Ionic Liquids as Thermal Energy Storage Materials: On the Importance of Reliable Data Analysis in Assessing Thermodynamic Data. Author(s) Bendová, Magdalena (UCHP-M) RID, ORCID, SAI
Čanji, Maja (UCHP-M) RID, SAI
Wagner, Zdeněk (UCHP-M) RID, SAI, ORCID
Bogdanov, M.G. (BG)Source Title Journal of Solution Chemistry. - : Springer - ISSN 0095-9782
Roč. 48, č. 7 (2019), s. 949-961Number of pages 13 s. Action International Symposium on Solubility Phenomena and Related Equilibrium Processes (ISSP) /18./ Event date 15.07.2018 - 20.07.2018 VEvent location Tours Country FR - France Event type WRD Language eng - English Country US - United States Keywords ionic liquids ; thermophysical properties ; differential scanning calorimetry Subject RIV CF - Physical ; Theoretical Chemistry OECD category Physical chemistry R&D Projects GA17-08218S GA ČR - Czech Science Foundation (CSF) Method of publishing Limited access Institutional support UCHP-M - RVO:67985858 UT WOS 000478750000003 EID SCOPUS 85053280763 DOI 10.1007/s10953-018-0798-9 Annotation In spite of many statements on the application potential of ionic liquids, these organic salts present both advantages and drawbacks for their possible use in real processes. Nevertheless, they are still an undeniably fascinating class of compounds, both from the fundamental point of view and as promising task-specific materials. For instance, reliable thermal property data seem to be significantly lacking for pure ionic liquids. In addition, to assess the application potential of any material or process, a reliable analysis of experimental data is of key importance, not only to obtain recommended data, but also to be able to identify patterns in structure–property relationships, even if those may not seem evident at first sight. The aim of this work is to assess the potential application of a series of 1-alkyl-3-methylimidazolium saccharinate ionic liquids (alkyl standing for butyl, hexyl, octyl, and decyl) in thermal energy storage. To this end, heat capacity and energy density were determined experimentally by means of differential scanning calorimetry (DSC) and oscillating-tube densitometry. The experimental data were then analyzed by means of advanced data analysis methods based on mathematical gnostics. Based on the thermodynamic data and theory of measurement, mathematical gnostics is a novel non-statistical approach towards data uncertainty. As such it enables us to evaluate measurement uncertainty of statistically non-significant data sets containing as few as four data points. Also, using robust regression algorithms along a gnostic influence function, functional dependencies and structure–property patterns can be reliably determined. Workplace Institute of Chemical Process Fundamentals Contact Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Year of Publishing 2020 Electronic address http://hdl.handle.net/11104/0302207
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