合成了各种类型的含有烷基硫酸盐基团的离子液体(IL),并研究了它们的物理和电化学性质。对于这些离子液体,测量其动态粘度和离子电导率的温度依赖性。使用差示扫描量热法研究了乙基硫酸盐的低温相行为。三种含硫酸乙酯的离子液体显示约5.0 V的宽电化学窗口,一种含吡咯烷鎓的离子液体显示出3.8 mS cm -1的电导率。含烷基硫酸盐的离子液体的各种阳离子显示出极大地影响粘度,密度和电导率。吸光度溶剂化变色探针尼罗红用于研究烷基硫酸盐基离子液体与几种有机溶剂相比的相对极性。这些IL的电化学和热稳定性使其成为用于电化学装置的有希望的电解质。
Ionic liquids containing an alkyl sulfate group as potential electrolytes
作者:Tzi-Yi Wu、Shyh-Gang Su、Shr-Tusen Gung、Ming-Wei Lin、Yuan-Chung Lin、Chao-Anx Lai、I-Wen Sun
DOI:10.1016/j.electacta.2010.02.089
日期:2010.6
Various types of ionic liquid (IL) containing an alkylsulfategroup are synthesized and their physical and electrochemical properties are investigated. The temperature dependency of dynamic viscosity and ionic conductivity are measured for these ILs. The low temperature phase behaviour of the ethylsulfate salts is investigated using differential scanning calorimetry. Three ethylsulfate-containing
合成了各种类型的含有烷基硫酸盐基团的离子液体(IL),并研究了它们的物理和电化学性质。对于这些离子液体,测量其动态粘度和离子电导率的温度依赖性。使用差示扫描量热法研究了乙基硫酸盐的低温相行为。三种含硫酸乙酯的离子液体显示约5.0 V的宽电化学窗口,一种含吡咯烷鎓的离子液体显示出3.8 mS cm -1的电导率。含烷基硫酸盐的离子液体的各种阳离子显示出极大地影响粘度,密度和电导率。吸光度溶剂化变色探针尼罗红用于研究烷基硫酸盐基离子液体与几种有机溶剂相比的相对极性。这些IL的电化学和热稳定性使其成为用于电化学装置的有希望的电解质。
Process For The Preparation Of Onium Alkylsulfates Having A Low Halide Content
申请人:Ignatyev Nikolai
公开号:US20100222580A1
公开(公告)日:2010-09-02
The invention relates to a process for the preparation of onium alkylsulfates by reaction of an onium halide with a symmetrically substituted dialkyl sulfate, in which the alkyl group can have 1 to 14 C atoms, with an asymmetrically substituted dialkyl sulfate, in which one alkyl group can have 4 to 20 C atoms and the second alkyl group denotes methyl or ethyl, with an alkyl trialkylsilyl sulfate, with an alkyl acyl sulfate or with an alkyl sulfonyl sulfate, where the reaction with a dialkyl sulfate is carried out at room temperature.