Institute of Electrochemistry, Clausthal University of Technology , Arnold-Sommerfeld-Straße 6, D-38678 Clausthal-Zellerfeld, Germany.
ACS Appl Mater Interfaces. 2017 Apr 5;9(13):11350-11355. doi: 10.1021/acsami.7b01404. Epub 2017 Mar 24.
Metal nanoparticles such as Au, Ag, Pt, and so forth have been deposited on silicon by electroless deposition in the presence of hydrofluoric acid (HF) for applications such as oxygen reduction reaction, surface-enhanced Raman spectroscopy, as well as for lithium ion batteries. Here, we show an HF-free process wherein metals such as Sb and Ag could be deposited onto electrodeposited silicon in ionic liquids. We further show that, compared to electrodeposited silicon, Sb-modified Si demonstrates a better performance for lithium storage. The present study opens a new paradigm for the electroless deposition technique in ionic liquids for developing and modifying functional materials.
金属纳米粒子如金、银、铂等，通过在存在氢氟酸（HF）的情况下进行无电沉积而沉积在硅上，用于氧还原反应、表面增强拉曼光谱等应用，以及用于锂离子电池。在这里，我们展示了一种无 HF 的工艺，其中金属如 Sb 和 Ag 可以沉积在离子液体中的电沉积硅上。我们进一步表明，与电沉积硅相比，Sb 修饰的 Si 表现出更好的锂存储性能。本研究为在离子液体中开发和修饰功能材料的无电镀技术开辟了一个新的范例。
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