Interfacial Constructing Flexible V2O5@Polypyrrole Core-Shell Nanowire Membrane with Superior Supercapacitive Performance

Jian Gan Wang, Huanyan Liu, Hongzhen Liu, Wei Hua, Minhua Shao

Research output: Contribution to journalArticlepeer-review

131 Scopus citations

Abstract

Flexible membrane consisting of ultralong V2O5@conducting polypyrrole (V2O5@PPy) core-shell nanowires is prepared by a facile in situ interfacial synthesis approach. The V2O5 is for the first time demonstrated to show versatile function of reactive template to initiate the uniform and conformal polymerization of PPy nanocoating without the need for extra oxidants. The freestanding PPy-encapsulated V2O5 nanowire membrane is of great benefit in achieving strong electrochemical harvest by increasing electrical conductivity, shortening ion/electron transport distance, and enlarging electrode/electrolyte contact area. When evaluated as binder- and additive-free supercapacitor electrodes, the V2O5@PPy core-shell hybrid delivers a significantly enhanced specific capacitance of 334 F g-1 along with superior rate capability and improved cycling stability. The present work would provide a simple yet powerful interfacial strategy for elaborate constructing V2O5/conducting polymers toward various energy-storage technologies.

Original languageEnglish
Pages (from-to)18816-18823
Number of pages8
JournalACS Applied Materials and Interfaces
Volume10
Issue number22
DOIs
StatePublished - 6 Jun 2018

Keywords

  • conducting polymer
  • nanocomposite
  • reactive temple synthesis
  • supercapacitor
  • VO

Fingerprint

Dive into the research topics of 'Interfacial Constructing Flexible V2O5@Polypyrrole Core-Shell Nanowire Membrane with Superior Supercapacitive Performance'. Together they form a unique fingerprint.

Cite this