TY - JOUR
T1 - Seed-mediated synthesis of Pd-Rh bimetallic nanodendrites
AU - Kobayashi, Hirokazu
AU - Lim, Byungkwon
AU - Wang, Jinguo
AU - Camargo, Pedro H.C.
AU - Yu, Taekyung
AU - Kim, Moon J.
AU - Xia, Younan
N1 - Funding Information:
This work was supported in part by the NSF (DMR-0804088) and startup funds from Washington University . J.W. was supported by a grant from CNMT (08K1501-01 210) under the 21st Frontier R&D Program of the MEST, Korea. P.H.C.C. was also partially supported by the Fulbright Program and the Brazilian Ministry of Education (CAPES). T.Y. was also partially supported by the National Research Foundation of Korea (NRF-2009-352-D00160). Part of the work was performed at the Nano Research Facility (NRF), a member of the National Nanotechnology Infrastructure Network (NNIN), which is supported by the National Science Foundation under award ECS-0335765.
PY - 2010/7/19
Y1 - 2010/7/19
N2 - This Letter describes a simple, aqueous-phase route to the synthesis of Pd-Rh bimetallic nanodendrites consisting of Rh branches anchored to a Pd nanocrystal core. Palladium nanocrystals with various shapes, including truncated octahedron, cube, octahedron, and thin plate, have all been successfully employed as seeds to grow Rh branches via the reduction of Na 3RhCl6 with l-ascorbic acid in an aqueous solution. The degree of Rh branching could be controlled by varying the concentration of Na3RhCl6 involved in a synthesis. Electron microscopy analysis revealed that growth of Rh branches proceeded via attachment of small Rh particles that had been formed via homogeneous nucleation in solution.
AB - This Letter describes a simple, aqueous-phase route to the synthesis of Pd-Rh bimetallic nanodendrites consisting of Rh branches anchored to a Pd nanocrystal core. Palladium nanocrystals with various shapes, including truncated octahedron, cube, octahedron, and thin plate, have all been successfully employed as seeds to grow Rh branches via the reduction of Na 3RhCl6 with l-ascorbic acid in an aqueous solution. The degree of Rh branching could be controlled by varying the concentration of Na3RhCl6 involved in a synthesis. Electron microscopy analysis revealed that growth of Rh branches proceeded via attachment of small Rh particles that had been formed via homogeneous nucleation in solution.
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U2 - 10.1016/j.cplett.2010.06.009
DO - 10.1016/j.cplett.2010.06.009
M3 - Article
AN - SCOPUS:77955309427
SN - 0009-2614
VL - 494
SP - 249
EP - 254
JO - Chemical Physics Letters
JF - Chemical Physics Letters
IS - 4-6
ER -