Micelle-assisted strategy for the direct synthesis of large-sized mesoporous platinum catalysts by vapor infiltration of a reducing agent

Yunqi Li, Yuwei Liu, Yusuke Yamauchi, Yusuf Valentino Kaneti, Saad M. Alsheri, Tansir Ahamad, Norah Alhokbany, Jeonghun Kim, Katsuhiko Ariga, Ning Wu, Jun Xu

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Stable polymeric micelles have been demonstrated to serve as suitable templates for creating mesoporous metals. Herein, we report the utilization of a core-shell-corona type triblock copolymer of poly(styrene-b-2-vinylpyridine-b-ethylene oxide) and H2PtCl6·H2O to synthesize large-sized mesoporous Pt particles. After formation of micelles with metal ions, the reduction process has been carried out by vapor infiltration of a reducing agent, 4-(Dimethylamino)benzaldehyde. Following the removal of the pore-directing agent under the optimized temperature, mesoporous Pt particles with an average pore size of 15 nm and surface area of 12.6 m2·g−1 are achieved. More importantly, the resulting mesoporous Pt particles exhibit superior electrocatalytic activity compared to commercially available Pt black.

Original languageEnglish
Article number841
JournalNanomaterials
Volume8
Issue number10
DOIs
Publication statusPublished - 2018 Oct 16

Bibliographical note

Publisher Copyright:
© 2018 by the authors. Licensee MDPI, Basel, Switzerland.

All Science Journal Classification (ASJC) codes

  • General Chemical Engineering
  • General Materials Science

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