Polymeric Micelle Assembly for the Smart Synthesis of Mesoporous Platinum Nanospheres with Tunable Pore Sizes

Yunqi Li; Bishnu Prasad Bastakoti; Victor Malgras; Cuiling Li; Jing Tang; Jung Ho Kim; Yusuke Yamauchi

doi:10.1002/anie.201505232

Polymeric Micelle Assembly for the Smart Synthesis of Mesoporous Platinum Nanospheres with Tunable Pore Sizes

Yunqi Li, Bishnu Prasad Bastakoti^*, Victor Malgras, Cuiling Li, Jing Tang, Jung Ho Kim, Yusuke Yamauchi

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

162 Scopus citations

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 PtCl₄²⁻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.

Original language	English
Pages (from-to)	11073-11077
Number of pages	5
Journal	Angewandte Chemie - International Edition
Volume	54
Issue number	38
DOIs	https://doi.org/10.1002/anie.201505232
State	Published - 14 Sep 2015
Externally published	Yes

Keywords

block copolymers
mesoporous materials
mesoporous metals
micelles
platinum

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10.1002/anie.201505232

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title = "Polymeric Micelle Assembly for the Smart Synthesis of Mesoporous Platinum Nanospheres with Tunable Pore Sizes",

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 PtCl42−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.",

keywords = "block copolymers, mesoporous materials, mesoporous metals, micelles, platinum",

author = "Yunqi Li and Bastakoti, \{Bishnu Prasad\} and Victor Malgras and Cuiling Li and Jing Tang and Kim, \{Jung Ho\} and Yusuke Yamauchi",

note = "Publisher Copyright: {\textcopyright} 2015 WILEY-VCH Verlag GmbH \& Co. KGaA, Weinheim",

year = "2015",

month = sep,

day = "14",

doi = "10.1002/anie.201505232",

language = "英语",

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T1 - Polymeric Micelle Assembly for the Smart Synthesis of Mesoporous Platinum Nanospheres with Tunable Pore Sizes

AU - Li, Yunqi

AU - Bastakoti, Bishnu Prasad

AU - Malgras, Victor

AU - Li, Cuiling

AU - Tang, Jing

AU - Kim, Jung Ho

AU - Yamauchi, Yusuke

PY - 2015/9/14

Y1 - 2015/9/14

N2 - 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 PtCl42−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.

AB - 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 PtCl42−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.

KW - block copolymers

KW - mesoporous materials

KW - mesoporous metals

KW - micelles

KW - platinum

UR - https://www.scopus.com/pages/publications/84973652544

U2 - 10.1002/anie.201505232

DO - 10.1002/anie.201505232

M3 - 文章

AN - SCOPUS:84973652544

SN - 1433-7851

VL - 54

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EP - 11077

JO - Angewandte Chemie - International Edition

JF - Angewandte Chemie - International Edition

IS - 38

ER -

Polymeric Micelle Assembly for the Smart Synthesis of Mesoporous Platinum Nanospheres with Tunable Pore Sizes

Abstract

Keywords

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