Polymeric micelle assembly for the smart synthesis of mesoporous platinum nanospheres with tunable pore sizes

Authors

Yunqi Li, Waseda University
Bishnu Prasad Bastakoti, National Institute for Materials Science, Japan
Victor Malgras, National Institute for Materials Science, JapanFollow
Cuiling Li, National Institute for Materials Science, JapanFollow
Jing Tang, Waseda University
Jung Ho Kim, University of WollongongFollow
Yusuke Yamauchi, National Institute for Materials Science, JapanFollow

RIS ID

106985

Publication Details

Li, Y., Bastakoti, B. Prasad., Malgras, V., Li, C., Tang, J., Kim, J. Ho. & Yamauchi, Y. (2015). Polymeric micelle assembly for the smart synthesis of mesoporous platinum nanospheres with tunable pore sizes. Angewandte Chemie International Edition, 54 (38), 11073-11077.

Abstract

A facile method for the fabrication of well-dispersed mesoporous Pt nanospheres involves the use of a polymeric micelle assembly. A core-shell-corona type triblock copolymer [poly(styrene-b-2-vinylpyridine-b-ethylene oxide), PS-b- P2VP-b-PEO] is employed as the pore-directing agent. Negatively charged PtCl4 2¢ ions preferably interact with the protonated P2VP+ blocks while the free PEO chains prevent the aggregation of the Pt nanospheres. The size of the mesopores can be finely tuned by varying the length of the PS chain. Furthermore, it is demonstrated that the metallic mesoporous nanospheres thus obtained are promising candidates for applications in electrochemistry.