A model to predict maximum tolerable temperatures of metal-oxide-supported 1-n-butyl-3-methylimidazolium based ionic liquids
作者： Aslı Akçay , Melike Babucci , Volkan Balci , Alper Uzun
DOI: 10.1016/J.CES.2014.11.038
关键词:
摘要: Abstract The thermal stability limits of metal-oxide-supported ionic liquids (ILs) with 1- n -butyl-3-methylimidazolium cation, [BMIM] + , on most commonly used metal-oxides, SiO 2 TiO γ-Al O 3 and MgO are determined. Data show that bulk ILs linearly increase increasing acidity C2 proton imidazolium ring, controlling the inter-ionic interaction strength. Moreover, data also presence metal-oxide lowers considerably. This effect becomes more significant as surface decreases from to MgO. decrease in point zero charge (PZC) indicates between IL dominant factor rather than interactions. Based these findings a simple mathematical expression was developed function PZC strength probed by ν(C2H) predict -based immobilized metal-oxides. Performance model tested several different supported including Fe CeO . Results successfully predicts maximum operating or tolerable temperatures supported-[BMIM] an average relative error less 4.3%. We suggest here can help choose proper tolerate conditions systems such solid catalysts liquid layer (SCILL) phase (SILP) catalysts.
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