Electrodeposition of Pd Intermetallics using Hg-In by the Electrochemical Liquid-Liquid-Solid Method
Electrodeposition of Pd Intermetallics using Hg-In by the Electrochemical Liquid-Liquid-Solid Method
复制标题
电化学液-液-固法使用 Hg-In 电沉积 Pd 金属间化合物
DOI：
10.1149/1945-7111/ac9bdc
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发表时间：
2022
影响因子：
3.9
通讯作者：
Maldonado, Stephen
中科院分区：
文献类型：
--
作者：
Wu, Henry;Maldonado, Stephen
已经使用液态金属电极从含有 Pd (CN) 2 和 KCN 的碱性浴中电沉积 Pd。数据显示，Pd 通过电化学液-液-固 (ec-LLS) 过程溶解到液态金属电极中并与其发生反应。 HgPd 晶体是用液态汞电极获得的。在固体In电极上，仅形成In 7 Pd 3 。相比之下，InPd 是 Hg 1-x In x 合金电极的主要产品。 X射线衍射、扫描电子显微镜和电子背散射衍射表明该材料不是纯相，因为在各种液体Hg-In组合物中观察到了HgPd和In 7 Pd 3 的少量成分。提出了一种机制，其中通过 In 原子取代晶胞的 Hg 位点，通过 HgPd 中间相形成 InPd 金属间化合物。因此，这项研究激发了对 Hg 1-x In x 作为 ec-LLS 金属间合成的通用介质的进一步探索。
Electrodeposition of Pd from alkaline baths containing Pd (CN) 2 and KCN with liquid metal electrodes has been performed. Data are presented that Pd dissolved into and reacted with the liquid metal electrodes via an electrochemical liquid-liquid-solid (ec-LLS) process. HgPd crystals were obtained with liquid Hg electrodes. On solid In electrodes, In 7 Pd 3 was exclusively formed. In contrast, InPd was the primary product with Hg 1-x In x alloy electrodes. X-ray diffraction, scanning electron microscopy, and electron backscattering diffraction show that the materials were not a pure phase, as minor components of HgPd and In 7 Pd 3 were observed for various liquid Hg-In compositions. A mechanism is proposed where the InPd intermetallic forms through an intermediate phase of HgPd by the substitution of In atoms for the Hg sites of the unit cell. This study thus motivates further exploration of Hg 1-x In x as a versatile medium for intermetallic synthesis by ec-LLS.