聚合物限域金属有机化合物自组装构筑高效多孔多元掺杂碳基氧还原催化剂

Translated title of the contribution: Constrained-volume assembly of organometal confined in polymer to fabricate multi-heteroatom doped carbon for oxygen reduction reaction

Congling Li, Jing Zhao, Rodney D. Priestley, Rui Liu

Research output: Contribution to journalArticle

6 Scopus citations

Abstract

The design and preparation of non-precious metal and carbon-based nanocomposites are critical to the development of efficient catalysts for technologies ranging from water splitting to fuel cell. Here, we present a constrained-volume self-assembly process for the one-step continuous precipitation-induced formation of soft colloidal particles, in which hydrophobic organoferrous compound, (Ph3P)2Fe(CO)3, is encapsulated within poly(styrene-co-acrylonitrile) nanoparticles (NPs). The protective and confining polymer matrix ensures uniform carbonization and dispersion of (Ph3P)2Fe(CO)3 within a carbon matrix after a pyrolysis process. The obtained carbon NPs are successfully co-doped with Fe, P and N with a relatively high surface area of ∼380 m2 g−1. The Fe-P-N-doped carbon catalyst exhibits high catalytic performance and stability toward oxygen reduction reaction in both alkaline and acidic electrolytes via a favorable four-electron pathway. Meanwhile, the catalytic capability of Fe-P-N-doped carbon can be tailored by the tunable nanostructures.

Translated title of the contributionConstrained-volume assembly of organometal confined in polymer to fabricate multi-heteroatom doped carbon for oxygen reduction reaction
Original languageChinese
Pages (from-to)1305-1313
Number of pages9
JournalScience China Materials
Volume61
Issue number10
DOIs
StatePublished - Oct 1 2018

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

Keywords

  • carbon
  • constrained-volume
  • electrocatalyst
  • heteroatom doping
  • self-assembly

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