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Published on: August 15, 2019
Overgrowth of Rhodium on Gold Nanorods
Ruth L Chantry1, Wilai Siriwatcharapiboon, Sarah L Horswell
1Nanoscale Physics Research Laboratory, School of Physics and Astronomy, School of Chemistry, University of Birmingham , Edgbaston, Birmingham, B15 2TT, United Kingdom.
Abstract:
This study focuses on the deposition and growth mode of rhodium (Rh) on gold (Au) seed nanorods (NRs). Using a combination of scanning transmission electron microscopy imaging, energy-dispersive X-ray spectroscopy, and UV-visible absorption spectroscopy, we show that Rh deposition results in an uneven overlayer morphology on the Au NR seeds, with a tendency for Rh deposition to occur preferentially on the Au NR ends. The results suggest that complex and kinetically driven metal-metal interactions take place in this system.
