Journal
MICRO & NANO LETTERS
Volume 14, Issue 12, Pages 1233-1237Publisher
INST ENGINEERING TECHNOLOGY-IET
DOI: 10.1049/mnl.2019.0319
Keywords
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
Funding
- National Projects of the Ministry of Education and Science of Ukraine [0118U000268, 0117U001235]
- State Fund for Fundamental Research [Phi75/147-2018]
- Swedish Institute scholarship [23891/2017]
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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 similar to 100-350 and similar to 10-35 nm, respectively. X-ray photoelectron spectroscopy (XPS) spectra of Ni 2p(3/2) region for these nanomaterials suggests on their surface Ni2+ precursor while after Ar+ ion-etching metallic nickel starts to be dominated. Both Pd-0 and Pd2+ 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 Ni2+ precursor, nanoparticles with an average particle size of similar to 10-23 nm were prepared on a graphite surface.
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