Abstract Electrodeposition of rhenium-cobalt (Re-Co) alloys is investigated in water-in-salt electrolyte with a superhigh concentration of lithium chloride. Cyclic and linear sweep voltammetries, potentiostatic deposition, and X-ray fluorescence spectroscopy are used to characterize the electrochemical deposition behavior of electrolytes and determine the deposition rates of each elements. Re deposition rate is enhanced in the presence of Co and a constant alloy composition is observed within a wide range of potential, both of which are explained with a partial ionic stabilization effect of Co on Re. A completely miscible solid solution with hexagonal close pack structure is observed for ReCo alloys after annealing, where the lattice parameters linearly scale with the alloy compositions. The effect of Co alloying on the superconductivity of electrodeposited alloy films is also characterized down to 2 K.

中文翻译：

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从盐包水电解质电沉积超导铼钴合金

摘要 在具有超高浓度氯化锂的盐包水电解液中研究了铼钴 (Re-Co) 合金的电沉积。循环和线性扫描伏安法、恒电位沉积和 X 射线荧光光谱用于表征电解质的电化学沉积行为并确定每种元素的沉积速率。在 Co 存在下 Re 沉积速率提高，并且在很宽的电位范围内观察到恒定的合金成分，这两者都可以用 Co 对 Re 的部分离子稳定作用来解释。对于 ReCo 合金，在退火后观察到具有六边形密堆积结构的完全混溶固溶体，其中晶格参数与合金成分成线性比例。