Liquid-phase transmission electron microscopy (LP-TEM) has provided corrosion scientists with a unique opportunity to directly correlate nanoscopic morphological and compositional evolutions to the corresponding electrochemical response of corroding thin TEM specimens. Electrochemical liquid cell designs are key components of a LP-TEM study towards an implementation which is representative for realistic exposure conditions of bulk samples. However, the application of commercially available liquid cells in corrosion studies brings along an important shortcoming of galvanic coupling effects due to the inevitable connection of the TEM specimens with Pt patterned electrodes. Here, we introduce an approach of fabricating electrochemical liquid cells to alleviate the current cell design challenge for corrosion studies. Besides, we present a protocol for preparing thin specimens to be electrochemically investigated with our home-made electrochemical liquid cell. We finally confirm the effectiveness of this methodology by electrochemically evaluating thin specimens of AA2024-T3 in an open-cell configuration through open circuit potential and potentiodynamic polarisation measurements.

液相透射电子显微镜 (LP-TEM) 为腐蚀科学家提供了一个独特的机会，可以将纳米级形态和成分演变与腐蚀薄 TEM 样品的相应电化学响应直接相关联。电化学液体电池设计是 LP-TEM 研究的关键组成部分，该研究旨在代表散装样品的实际暴露条件。然而，由于 TEM 样品与 Pt 图案电极的不可避免的连接，市售液体电池在腐蚀研究中的应用带来了电耦合效应的重要缺点。在这里，我们介绍了一种制造电化学液体电池的方法，以减轻当前腐蚀研究的电池设计挑战。除了，我们提出了一种制备薄样品的方案，用我们自制的电化学液体电池进行电化学研究。我们最终通过开路电位和动电位极化测量对开孔配置中的 AA2024-T3 薄样品进行电化学评估，从而证实了该方法的有效性。