Tribological behavior and quantum chemical calculations of protic ionic liquids: synthesis, spectroscopic, and thermal properties

Authors : Ahmet KARADAĞ, Hüseyin AKBAŞ, Duran KARAKAŞ, Kadir Cihan TEKİN, Erdem KORKMAZER

Pages : 766-777

View : 16 | Download : 7

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :Protic ionic liquids insert ignore into journalissuearticles values(PILs); were synthesized through a stoichiometric neutralization reaction between 2,2$` $-insert ignore into journalissuearticles values(ethylenedioxy);-bisinsert ignore into journalissuearticles values(ethylamine); { Edbea} and various acids insert ignore into journalissuearticles values(formic, acetic, boric, decanoic, and gentisic acid);. The PILs were characterized by elemental analyses, FTIR, $^{1}$H and $^{13}$C NMR spectroscopy, and thermogravimetric analysis. All the PILs except PIL3 were liquid at room temperature. The viscosity of the PILs insert ignore into journalissuearticles values(PIL1, 2, 4, 5); was measured using a cone-and-plate viscometer at ambient temperature. Quantum chemical calculations were used to explain the cation/anion ratio in the PILs. Reaction energies in the gas phase calculated at M062X/6-311$+$Ginsert ignore into journalissuearticles values(d,p); level were used to determine the cation/anion ratio. A sliding wear test was conducted at room temperature using an AA7075 disc specimen against a stationary 100Cr6 steel ball. The wear protection of PILs and 15W40 engine oil was determined by considering the volume loss of AA7075.
Keywords : Protic ionic liquid, tribology, spectroscopy, quantum chemical calculation