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Intrinsic proton conduction in 2D sulfonated covalent organic frameworks through a post-synthetic strategy

CrystEngComm, ISSN: 1466-8033, Vol: 23, Issue: 36, Page: 6234-6238
2021
  • 25
    Citations
  • 0
    Usage
  • 14
    Captures
  • 0
    Mentions
  • 200
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    25
    • Citation Indexes
      25
  • Captures
    14
  • Social Media
    200
    • Shares, Likes & Comments
      200
      • Facebook
        200

Article Description

Two-dimensional covalent organic frameworks (2D COFs) have attracted much attention in proton conduction, owing to their regular pore channels and easy functionalization. However, most of the COFs required loading of proton carriers to achieve high proton conductivity. Here, we report the immobilization of flexible sulfonic acid groups on the channel walls of PyTTA-DHTA-COF (synthesized by condensation of 4,4′,4′′,4′′′-(pyrene-1,3,6,8-tetrayl)tetraaniline and 2,5-dihydroxyterephthalaldehyde)viaa simple post-synthetic modification strategy. The sulfonated COF showed intrinsic proton conductivity up to 10at 25 °C and 100% relative humidity (RH) and high conductivity up to 10S cmat 70 °C and 100% RH without the introduction of any non-covalent acid molecules or imidazole derivatives.

Bibliographic Details

Yuwei Zhang; Chunzhi Li; Zhaohan Liu; Yuze Yao; Md. Mahmudul Hasan; Qianyu Liu; Jieqiong Wan; Zhongping Li; He Li; Yuki Nagao

Royal Society of Chemistry (RSC)

Chemistry; Materials Science; Physics and Astronomy

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