Synthesis of size-controlled PtCu@Ru nanorattles via Pt seed-assisted formation of size-controlled removable Cu template
- Authors
- Park, Suhyun; Yoon, Donghwan; Baik, Hionsuck; Lee, Kwangyeol
- Issue Date
- 2015
- Publisher
- ROYAL SOC CHEMISTRY
- Citation
- CRYSTENGCOMM, v.17, no.36, pp.6852 - 6856
- Indexed
- SCIE
SCOPUS
- Journal Title
- CRYSTENGCOMM
- Volume
- 17
- Number
- 36
- Start Page
- 6852
- End Page
- 6856
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/96205
- DOI
- 10.1039/c5ce00398a
- ISSN
- 1466-8033
- Abstract
- A facile synthetic strategy has been developed for size-controlled PtCu@Ru nanorattles via co-decomposition of Ru and Cu precursors in the presence of Pt nanoparticles. The presence of Pt nanoparticles induces a fast decomposition of Cu precursors, leading to the growth of the Cu phase on the Pt seeds. The Pt nanoparticle surface is partially alloyed with the Cu phase to form a PtCu alloy phase. Subsequent decomposition of Ru precursors leads to the formation of the Ru shell. The Cu layer between the core and shell of the intermediate PtCu@Cu@Ru nanoparticle, generated as a kinetic product, is then in situ removed by a CTAB ( cetyltrimethylammonium bromide)-induced destabilization process to yield a novel nanorattle structure with a Pt-based core and a porous Ru shell. The diameter of the Ru shell could be conveniently controlled by varying the ratio of employed Cu and Ru precursors.
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