Facile Synthesis of Diamino-Modified Graphene/Polyaniline Semi-Interpenetrating Networks with Practical High Thermoelectric Performance

Yen Hao Lin, Tsung Chi Lee, Yu Sheng Hsiao*, Wei Keng Lin, Wha Tzong Whang, Chun-Hua Chen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

p-Phenediamino-modified graphene (PDG) has been newly synthesized via a facile green one-step chemical route as a functionalized graphene-based additive to copolymerize with aniline for fabricating innovative PDG/polyaniline conducting polymer composites containing very special semi-interpenetrating networks (S-IPNs). The S-IPNs not only provide additional pathways by creating chemically bonded PDG and PANI for smoothly transporting carriers but greatly reduce the amount of graphene required to less than a few percent could effectively improve the overall electrical conductivity, Seebeck coefficient, and thus the thermoelectric (TE) performance. The found optimized TE figure of merit (ZT) of 0.74 approaches a practical high level which is comparable or much higher than previously reported ones for TE polymers.

Original languageEnglish
Pages (from-to)4946-4952
Number of pages7
JournalACS Applied Materials and Interfaces
Volume10
Issue number5
DOIs
StatePublished - 1 Jan 2018

Keywords

  • conducting polymer
  • graphene
  • polyaniline
  • semi-interpenetrating network (S-IPN)
  • thermoelectric

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