[This article belongs to Volume - 54, Issue - 02]
Gongcheng Kexue Yu Jishu/Advanced Engineering Science
Journal ID : AES-11-04-2022-154

Title : Electrochemical Deposition of Palladium Nanoparticles onto Brass, Iron and Zinc Substrates from Alum: Urea Deep Eutectic Solvents.
Eman Turky Shamkhy1,, Hadi M. A. Abood2,, Taghried A. Salman3,

Abstract : Deep eutectic solvents (DES) emerged as a benign media for chemical applications particularly for metal electrodeposition. Electrodeposition of precious palladium metal is investigated in electro-reduction purified Alum: Urea(1:5) deep eutectic solvent. The cyclovaltametry of Pd2+ showed one step reduction to Pd metal onset at -0.47V and oxidation to Pd2+ ions with maximum potential at -0.3V. Electrodeposition of nanometal particle was performed at -0.8 V and 30oC on three type of substrates, brass, zinc and iron giving different morphologies. Non adhered Pd was settled at the bottom of reaction tube with all substrates. An average Pd nanoparticles size of 37.35nm, 45.33nm and 41.44 nm with 8nm, 13nm and 17 cubic crystalline size were formed on brass, zinc and iron respectively of the electroreduced Pd particles. Methods of studying and analysis used in this work are cyclic voltammogram, potentiostate, field emission scanning electron microscope (FE-SEM) with energy dispersive X-ray spectrometry (EDX) mapping, X-ray diffractometer spectrometer (XRD) and atomic force microscopy (AFM).