TY - JOUR
T1 - Transforming Sugars into Salts─A Novel Strategy to Reduce Supercooling in Polyol Phase-Change Materials
AU - Gaida, Bartlomiej
AU - Kondratowicz, Jan
AU - Piper, Samantha L.
AU - Forsyth, Craig M.
AU - Chrobok, Anna
AU - Macfarlane, Douglas R.
AU - Matuszek, Karolina
AU - Brzeczek-Szafran, Alina
N1 - Funding Information:
The authors thank Magdalena Gwóźdź for her help in preparing the GA. This research was undertaken in part using the MX2 beamline at the Australian Synchrotron, part of ANSTO, and made use of the Australian Cancer Research Foundation (ACRF) detector. This work was supported by the Polish National Agency for Academic Exchange under the Strategic Partnerships program (BPI/PST/2021/1/00039) and the Excellence Initiative─Research University Programme under grant no. 04/050/SDU/10-21-01. The synthesis of the salts has been supported by the grant no. 04/050/BKM22/0149.
Funding Information:
This work was supported by the Polish National Agency for Academic Exchange under the Strategic Partnerships program (BPI/PST/2021/1/00039) and the Excellence Initiative─Research University Programme under grant no. 04/050/SDU/10-21-01. The synthesis of the salts has been supported by the grant no. 04/050/BKM22/0149.
Publisher Copyright:
© 2023 American Chemical Society
PY - 2024/1/8
Y1 - 2024/1/8
N2 - Phase-change materials (PCMs) that melt in the intermediate temperature range of 100-220 °C can contribute to the utilization of renewable energy. Compounds rich in hydroxyl groups (e.g., sugar alcohols) are promising materials because of their high energy-storage densities and renewability. However, supercooling and poor stability under operating conditions currently exclude them from practical application as PCMs in the pure form. In this study, we explore a new strategy to encourage the crystallization of sugars by introducing Coulombic interactions into their structures. The thermal properties of the first carbohydrate-based ionic compounds studied as PCMs are reported, focusing on a glucose-based cation and four different anions, namely, Br- [NO3]−, [OMs]−, and [BF4]−. Combining α-d-glucopyranoside, which typically supercools, with the [NO3]− anion resulted in a salt system that crystallized readily during heating/cooling cycles. The role of hydrogen bonding in dictating the thermal properties was examined by single-crystal X-ray diffraction and Hirshfeld surface analyses.
AB - Phase-change materials (PCMs) that melt in the intermediate temperature range of 100-220 °C can contribute to the utilization of renewable energy. Compounds rich in hydroxyl groups (e.g., sugar alcohols) are promising materials because of their high energy-storage densities and renewability. However, supercooling and poor stability under operating conditions currently exclude them from practical application as PCMs in the pure form. In this study, we explore a new strategy to encourage the crystallization of sugars by introducing Coulombic interactions into their structures. The thermal properties of the first carbohydrate-based ionic compounds studied as PCMs are reported, focusing on a glucose-based cation and four different anions, namely, Br- [NO3]−, [OMs]−, and [BF4]−. Combining α-d-glucopyranoside, which typically supercools, with the [NO3]− anion resulted in a salt system that crystallized readily during heating/cooling cycles. The role of hydrogen bonding in dictating the thermal properties was examined by single-crystal X-ray diffraction and Hirshfeld surface analyses.
KW - carbohydrates
KW - Coulombic interactions
KW - hydrogen bonding
KW - ionic liquids
KW - organic salts
KW - phase-change materials
KW - sugars
KW - supercooling
KW - thermal energy storage
UR - http://www.scopus.com/inward/record.url?scp=85181844159&partnerID=8YFLogxK
U2 - 10.1021/acssuschemeng.3c06990
DO - 10.1021/acssuschemeng.3c06990
M3 - Article
AN - SCOPUS:85181844159
SN - 2168-0485
VL - 12
SP - 623
EP - 632
JO - ACS Sustainable Chemistry & Engineering
JF - ACS Sustainable Chemistry & Engineering
IS - 1
ER -