Flash nanoprecipitation of poly(styrene-co-acrylonitrile) colloids in the presence of hydrophobic organoplatinum and their derived Pt-carbon nanocomposites for oxygen reduction reaction

Minmin Liu, Jing Zhao, Rodney D. Priestley, Wei Teng, Rui Liu

Research output: Contribution to journalArticle

6 Scopus citations

Abstract

Herein, we present a flash nanoprecipitation process for one-step formation of soft colloidal particles, in which platinum (II) acetylacetonate is entrapped within poly(styrene-co-acrylonitrile) nanospheres. The protection of the polymer matrix in the flash nanoprecipitated composites would ensure that the monodisperse platinum nanoparticles are uniformly dispersed in the carbon matrix after carbonization. Electrochemical characterization shows that the obtained Pt-carbon nanocomposites (denoted as Pt@NC) exhibit a high catalytic performance and low polarization loss toward oxygen reduction reaction (ORR) in an alkaline electrolyte via a favorable four-electron pathway.

Original languageEnglish (US)
Pages (from-to)118-123
Number of pages6
JournalColloids and Surfaces A: Physicochemical and Engineering Aspects
Volume552
DOIs
StatePublished - Sep 5 2018

All Science Journal Classification (ASJC) codes

  • Surfaces and Interfaces
  • Physical and Theoretical Chemistry
  • Colloid and Surface Chemistry

Keywords

  • Carbon
  • FNP
  • Nanocomposite
  • ORR
  • Pt

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