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PtRu nano-dandelions on thiolated carbon nanotubes: a new synthetic strategy for supported bimetallic core-shell
Yong-Tae Kim1, Hyunjoo Lee, Hyoung-Juhn Kim
1School of Mechanical Engineering and Research Institute of Mechanical Technology, Pusan National University, Busan 609-735, Korea. yongtae@pusan.ac.kr
Chemical Communications (Cambridge, England)
|March 12, 2010
Abstract:
Core-shell PtRu clusters resembling dandelions were formed on thiolated carbon nanotubes by the difference in bond strength with surface thiol groups between Pt and Ru single atoms. The formation mechanism was clearly understood using a different release timing concept based on EXAFS and XPS analyses during heat treatment.
