Anodic dissolution of metals in ionic liquids
Anodic dissolution of metals in ionic liquids
复制标题
DOI：
10.1016/j.pnsc.2015.11.005
复制
发表时间：
2015-12-01
影响因子：
4.7
通讯作者：
Ryder, Karl S.
中科院分区：
文献类型：
--
作者：
Abbott, Andrew P.;Frisch, Gero;Ryder, Karl S.
金属的阳极溶解是电池设计、材料精加工和金属消化的一个重要课题。离子液体被用于所有这些领域，但对这些介质中阳极溶解的研究相对较少。本研究研究了 9 种金属在离子液体 [C(4)mim][Cl] 和低共熔溶剂 Ethaline 中的行为，Ethaline 是氯化胆碱和乙二醇摩尔比为 1:2 的混合物。结果表明，对于所研究的大多数金属来说，金属表面会发生准钝化，这主要是由于电极表面上形成不溶性薄膜。大多数金属在 [C(4)mim] [Cl] 中的行为与在 Ethaline 中的行为不同，部分原因是粘度不同。通过搅拌或提高电解质温度可以减少钝化盐膜的形成，从而增加配体向电极表面的传输。 (C) 2015 年作者。由Elsevier B.V.代表中国材料研究会制作并主办。
The anodic dissolution of metals is an important topic for battery design, material finishing and metal digestion. Ionic liquids are being used in all of these areas but the research on the anodic dissolution is relatively few in these media. This study investigates the behaviour of 9 metals in an ionic liquid [C(4)mim][Cl] and a deep eutectic solvent, Ethaline, which is a 1:2 mol ratio mixture of choline chloride and ethylene glycol. It is shown that for the majority of metals studied a quasi-passivation of the metal surface occurs, primarily due to the formation of insoluble films on the electrode surface. The behaviour of most metals is different in [C(4)mim] [Cl] to that in Ethaline due in part to the differences in viscosity. The formation of passivating salt films can be decreased with stirring or by increasing the electrolyte temperature, thereby increasing ligand transport to the electrode surface. (C) 2015 The Authors. Production and hosting by Elsevier B.V. on behalf of Chinese Materials Research Society.