Ionic liquid magnesium anodes

The anodic dissolution of magnesium. Mg, has been reported as possible in the basic or buffered ionic liquids that consist of EMI+ and DMPI [20]. However, the deposition of Mg is impossible due to the instability of metallic Mg against these organic cations, whereas the formation of Al-Mg alloys containing Mg up to 2.2 at% has been observed in the acidic EMICI-AICI3 ionic liquid [21]. Calcium and strontium dichlorides, CaCla and SrCla, are soluble in an acidic EMICI-AICI3 ionic liquid and the co-deposition of calcium and strontium with bismuth and copper has been examined in the acidic ionic liquid [22]. 

Fuller J, Carlin RT, Osteryoung RA et al (1998) Anodization and speciation of magnesium in chloride-rich room temperature ionic liquids. J Electrochem Soc 145 1598-1605... 

C, although by cycle 4 this dropped to 100 mAh g While there are severe limitations with magnesium-based anodes, this work does demonstrate that cathodes for cells using ionic liquids need not be limited to lithium and sodium. 

Dimethyl carbonate was obtained from CO2 on an indium cathode, in a high-purity ionic liquid, l-butyl-3-methylimidazoliumtetrafluoborate (BMIMBF4, >99.99%). Prior to the electroreduction, the ionic liquid was dried carefully, under vacuum at 110°C, as the presence of moisture would narrow the potential window of BMIMBF4. As demonsfrafed by cyclic voltammetry, the reduction peak occurred at -1.8 V (vs. Ag). The electrolysis experiments were carried out in an undivided cell, magnesium being used as a sacrificial anode. Preceding... 

---