Effect of imidazolium-based ionic liquids on the pore wetting characteristics and mechanical properties of coal

Fuel ◽  
2022 ◽  
Vol 315 ◽  
pp. 123274
Author(s):  
Hui Wang ◽  
Guanhua Ni ◽  
Xiangfei Zhang ◽  
Gongshuai Sun ◽  
Zhenyang Wang ◽  
...  
2021 ◽  
Vol 9 (8) ◽  
pp. 4679-4686
Author(s):  
Coby J. Clarke ◽  
Richard P. Matthews ◽  
Alex P. S. Brogan ◽  
Jason P. Hallett

Gels prepared from metal containing ionic liquids with cross-linked poly(ethylene glycol) have surface compositions and mechanical properties that can be controlled by Lewis basicity and acidity of the metal species.


2019 ◽  
Vol 72 (2) ◽  
pp. 112 ◽  
Author(s):  
Matthew Russo ◽  
Holly Warren ◽  
Geoffrey M. Spinks ◽  
Douglas R. MacFarlane ◽  
Jennifer M. Pringle

Thermoelectrochemical cells are a promising new technology for harvesting low-grade waste heat. The operation of these cells relies on a redox couple within an electrolyte, which is most commonly water-based, and improvement of these materials is a key aspect of the advancement of this technology. Here, we report the gelation of aqueous electrolytes containing the K3Fe(CN)6/K4Fe(CN)6 redox couple using a range of different polymers, including polyvinyl alcohol (PVA), sodium carboxymethyl cellulose (Cmc), polyacrylamide (PAAm), and two commercial polyurethane-based polymers: HydroMed D640 and HydroSlip C. These polymers produce quasi-solid-state electrolytes with sufficient mechanical properties to prevent leakage, and allow improved device flexibility and safety. Furthermore, the incorporation of various ionic liquids within the optimized hydrogel network is investigated as a route to enhance the electrochemical and mechanical properties and thermal energy harvesting performance of the hydrogels.


2011 ◽  
Vol 236-238 ◽  
pp. 1156-1159 ◽  
Author(s):  
Guo Zengge ◽  
Bo Wen Cheng ◽  
Song Jun ◽  
Gao Lei ◽  
Lu Fei ◽  
...  

In this work, the spinnging process of tussah silk/cellulose blend fiber using ionic liquids as solvent has been studied and the optimum spinning parameters were obtained from the orthogonal test. The structures morphology and properties of blend fibers were investigated through mechanical properties, SEM and FTIR. The result showed that break strength was 1.4124cN/dtex and break elongation was 9.803% in the condition of the optimum spinning parameters.


2016 ◽  
Vol 7 (43) ◽  
pp. 6608-6616 ◽  
Author(s):  
H. Srour ◽  
M. Leocmach ◽  
V. Maffeis ◽  
A. C. Ghogia ◽  
S. Denis-Quanquin ◽  
...  

We describe the preparation as well as the electrochemical and mechanical properties of a series of novel well-defined poly(ionic liquids) (PILs) featuring a finely tuned cross-linking ratio.


Cellulose ◽  
2018 ◽  
Vol 25 (8) ◽  
pp. 4639-4652 ◽  
Author(s):  
Slawomir Borysiak ◽  
Aleksandra Grząbka-Zasadzińska ◽  
Majka Odalanowska ◽  
Andrzej Skrzypczak ◽  
Izabela Ratajczak

Lubricants ◽  
2019 ◽  
Vol 7 (4) ◽  
pp. 37 ◽  
Author(s):  
Ignacio Garcia ◽  
Silvia Guerra ◽  
Juan de Damborenea ◽  
Ana Conde

Deep eutectic ionic liquids (DES) possess similar properties to conventional ionic liquids (ILs). However, ILs cannot be considered as environmentally friendly compounds due to both its processing and synthesis, which could have significant polluting effects. On the contrary, deep eutectic solvents (DESs) can be biodegradable, non-toxic, and have a lower price than most ILs, making them potentially useful in a wide variety of advanced technological applications, such as tribology. On the other hand, graphene has recently been proposed as an extremely promising lubricant due to its combination of mechanical properties and chemical stability as well as its “green” character. In the present paper, graphene flakes (≈250 nm) have been used as an additive to DES composed of choline chloride (ChCl)-urea, ChCl-ethylene glycol, and ChCl-malic acid. According to the results, the addition of 1 wt% graphene reduces friction coefficient (COF) and, notably, prevents adhesive wear, reducing wear rate on steel-steel sliding contacts.


2013 ◽  
Vol 214 (7) ◽  
pp. 787-796 ◽  
Author(s):  
Bartosz Ziółkowski ◽  
Zeliha Ates ◽  
Simon Gallagher ◽  
Robert Byrne ◽  
Andreas Heise ◽  
...  

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