PMID- 35975583
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20220906
IS  - 1463-9084 (Electronic)
IS  - 1463-9076 (Linking)
VI  - 24
IP  - 34
DP  - 2022 Aug 31
TI  - Magnetic deep eutectic solvents: formation and properties.
PG  - 20073-20081
LID - 10.1039/d2cp01592g [doi]
AB  - Deep eutectic solvents (DESs) are well-known as novel solvents due to their 
      unique properties, which are indispensable for the development of green chemistry 
      in the future. CoCl(2).6H(2)O and NiCl(2).6H(2)O-based DESs, which could be 
      called magnetic DESs (MDESs) for short in view of their responsive behavior to an 
      external magnetic field, have been widely used in many industrial applications, 
      such as biomass treatment, electrolytes, and material preparation. For better 
      application and full-scale development of these MDESs in various fields, eleven 
      MDESs were prepared in this work by using CoCl(2).6H(2)O and NiCl(2).6H(2)O as 
      hydrogen bond acceptors (HBAs) with alcohols, carboxylic acids and amides as 
      hydrogen bond donors (HBDs), respectively. The intermolecular interactions 
      between the components of MDESs were characterized via FTIR, (1)H NMR and DSC 
      analysis. In addition, physicochemical properties including density, viscosity, 
      conductivity, ionicity, pH values, surface tension, thermostability and 
      solvatochromic parameters were investigated. All MDESs exhibit acid 
      characteristics and have good conductivity comparable with ionic liquids (ILs) 
      and other DESs used for electrolytes. The results show that stronger H-bonding 
      networks in Ni-based MDESs make them have higher density, viscosity, polarity and 
      surface tension values than Co-based MDESs. Moreover, all prepared MDESs possess 
      a good conductivity behavior which could be comparable to that of common organic 
      solvents and ILs. According to this work, we could better comprehend the behavior 
      of Co/Ni-based MDESs and choose the appropriate one for particular applications.
FAU - Shi, Ruifen
AU  - Shi R
AD  - Department of Chemistry, Renmin University of China, Beijing, 100872, China. 
      tcmu@ruc.edu.cn.
FAU - Zhou, Fengyi
AU  - Zhou F
AD  - Department of Chemistry, Renmin University of China, Beijing, 100872, China. 
      tcmu@ruc.edu.cn.
FAU - Chen, Yu
AU  - Chen Y
AUID- ORCID: 0000-0003-3420-7694
AD  - Department of Chemistry and Material Science, Langfang Normal University, 
      Langfang, 065000, Hebei, P. R. China. chenyu@iccas.ac.cn.
FAU - Liu, Zhenghui
AU  - Liu Z
AUID- ORCID: 0000-0003-0559-4517
AD  - Department of Chemistry, Taizhou University, Taizhou, 318000, Zhejiang, China. 
      liuzhenghui@iccas.ac.cn.
FAU - Liu, Shuzi
AU  - Liu S
AD  - Department of Chemistry, Renmin University of China, Beijing, 100872, China. 
      tcmu@ruc.edu.cn.
FAU - Mu, Tiancheng
AU  - Mu T
AUID- ORCID: 0000-0001-8931-6113
AD  - Department of Chemistry, Renmin University of China, Beijing, 100872, China. 
      tcmu@ruc.edu.cn.
LA  - eng
PT  - Journal Article
DEP - 20220831
PL  - England
TA  - Phys Chem Chem Phys
JT  - Physical chemistry chemical physics : PCCP
JID - 100888160
SB  - IM
EDAT- 2022/08/18 06:00
MHDA- 2022/08/18 06:01
CRDT- 2022/08/17 04:12
PHST- 2022/08/18 06:00 [pubmed]
PHST- 2022/08/18 06:01 [medline]
PHST- 2022/08/17 04:12 [entrez]
AID - 10.1039/d2cp01592g [doi]
PST - epublish
SO  - Phys Chem Chem Phys. 2022 Aug 31;24(34):20073-20081. doi: 10.1039/d2cp01592g.