Surface analysis of nickel nanomaterials electrodeposited on graphite surface

Micro & nano letters

article

Ivan Saldan¹  Erik Lewin²  Oksana Dobrovetska³  Dennis Karlsson²  Oleh Bilan⁴  Orest Kuntyi³ 

[1] Faculty of Chemistry, Ivan Franko National University of Lviv;Department of Chemistry, Ångström Laboratory, Uppsala University;Institute of Chemistry and Chemical Technologies, Lviv Polytechnic National University;Industrial Company “Autonomous Power Sources”

关键词: particle size;    nanoparticles;    nickel;    graphite;    nanofabrication;    electrodeposition;    X-ray photoelectron spectra;    electrolysis;    etching;    X-ray chemical analysis;    scanning electron microscopy;    palladium alloys;    nickel alloys;    C;    Ni;    NiPd;    particle size;    nonaqueous electrolyte;    Ar+ ion-etching metallic nickel;    surface Ni2+ precursor;    dimethyl sulfoxide;    pulse electrolysis;    nickel-palladium alloy;    electron microscope-energy dispersive X-ray analysis;    electrodeposition;    XPS spectra;    ion-etching metallic nickel;    X-ray photoelectron spectroscopy spectra;    graphite surface;    nickel nanomaterials;    surface analysis;   

DOI  :  10.1049/mnl.2019.0319

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

Pure Nickel (Ni) and Nickel–Palladium (Ni–Pd) alloy were electrodeposited on graphite surface via pulse electrolysis in dimethyl sulfoxide in form of rods and nanoparticles with a diameter of ∼100–350 and ∼10–35 nm, respectively. X-ray photoelectron spectroscopy (XPS) spectra of Ni 2p 3/2 region for these nanomaterials suggests on their surface Ni 2+ precursor while after Ar + ion-etching metallic nickel starts to be dominated. Both Pd 0 and Pd 2+ for XPS spectra of Pd 3d 5/2 and 3d 3/2 were observed after electrodeposition. Scanning electron microscope-energy dispersive X-ray and XPS analysis confirmed electrodeposition of nickel nanomaterials in non-aqueous electrolyte. Using a lower concentration of Ni 2+ precursor, nanoparticles with an average particle size of ∼10–23 nm were prepared on a graphite surface.

【 授权许可】

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