Evaluation of N,N,N-Dimethylbutylammonium Methanesulfonate Ionic liquid for electrochemical recovery of lead from lead-acid batteries
Evaluation of N,N,N-Dimethylbutylammonium Methanesulfonate Ionic liquid for electrochemical recovery of lead from lead-acid batteries
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DOI：
10.1016/j.electacta.2021.137893
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发表时间：
2021-02
影响因子：
6.6
通讯作者：
Sze-yin Tan;Franky E. Bedoya-Lora;J. Hallett;G. Kelsall
中科院分区：
文献类型：
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作者：
Sze-yin Tan;Franky E. Bedoya-Lora;J. Hallett;G. Kelsall
测定了N，N，N-二甲基丁基铵甲烷磺酸盐（[DMBA][MS]）、离子液体（IL）的理化和电化学性质，探讨了其在铅酸蓄电池铅回收中的应用前景。为了优化IL的传输特性，测量了电导率、密度和粘度与不同量的过量酸和水作为电解质混合物中的稀释剂的依赖性。从摩尔浓度和离子电导率测量获得的摩尔电导率用于量化这些IL混合物的离子性。研究还表明，PbII从PbCO 3中的溶解度在很大程度上取决于IL组成。PbII还原的电化学动力学的初步结果表明，快速铅沉积和电位控制的电沉积形态的铅，这可能是有利的设计放大规模的铅电解过程。
Physicochemical and electrochemical properties ofN,N,N-dimethylbutylammonium methanesulfonate, [DMBA][MS], ionic liquid (IL) have been determined, and the potential application for electrochemical recovery of lead from lead-acid batteries is discussed. To optimise the transport properties of the IL, the dependences were measured of conductivity, density and viscosity with varying amounts of excess acid with water as a diluent in the electrolyte mixture. Molar conductivities obtained from the molar concentration and ionic conductivity measurements were used to quantify the ionicities of these IL mixtures. The solubility of PbIIfrom PbCO3was also shown to depend strongly on the IL composition. Preliminary results of the electrochemical kinetics of PbIIreduction showed fast Pb deposition and potential-controlled electrodeposition morphologies of Pb, which may be advantageous for the design of up-scaled lead electrowinning processes.