Solution-Based Epitaxial Growth of Magnetically Responsive Cu@Ni Nanowires
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AbstractAn experiment was conducted to show the solution-based epitaxial growth of magnetically responsive Cu@Ni nanowires. The Ni-sheathed Cu nanowires were synthesized with a one-pot approach. 30 mL of high concentration NaOH, Cu(NO3)2. 3H2O, Cu(NO3)2. 3H2O and 0.07-0.30 mL of Ni(NO3)2. 6H 2O aqueous solutions were added into a plastic reactor with a capacity of 50.0 mL. A varying amount of ethylenediamine (EDA) and hydrazine were also added sequentially, followed by thorough mixing of all reagents. The dimension, morphology, and chemical composition of the products were examined with scanning electron microscopy with energy dispersive X-ray spectroscopy. The XPS analysis on the as formed Cu nanowires confirms that there is indeed no nickel inclusion in the nanowires prior to the formation of nickel overcoat, which rules out the possibility of Cu-Ni alloy formation.
CitationZhang S, Zeng HC (2010) Solution-Based Epitaxial Growth of Magnetically Responsive Cu@Ni Nanowires. Chem Mater 22: 1282–1284. Available: http://dx.doi.org/10.1021/cm903105f.
SponsorsThe authors gratefully acknowledge the financial support of the Ministry of Education, Singapore, and King Abdullah University of Science and Technology, Saudi Arabia.
PublisherAmerican Chemical Society (ACS)
JournalChemistry of Materials