Monolayer-Assisted Surface-Initiated Schiff-Base-Mediated Aldol Polycondensation for the Synthesis of Crystalline sp2 Carbon-Conjugated Covalent Organic Framework Thin Films

Publikation: Beitrag in FachzeitschriftForschungsartikelBeigetragenBegutachtung

Beitragende

  • Ke Wang - , CAS - Ningbo Institute of Material Technology and Engineering (Autor:in)
  • Haoyong Yang - , CAS - Ningbo Institute of Material Technology and Engineering, University of Chinese Academy of Sciences (Autor:in)
  • Zhongquan Liao - , Fraunhofer-Institut für Keramische Technologien und Systeme (Autor:in)
  • Shengxu Li - , CAS - Ningbo Institute of Material Technology and Engineering (Autor:in)
  • Mike Hambsch - , Professur für Organische Bauelemente (cfaed) (Autor:in)
  • Guangen Fu - , CAS - Ningbo Institute of Material Technology and Engineering (Autor:in)
  • Stefan C.B. Mannsfeld - , Professur für Organische Bauelemente (cfaed) (Autor:in)
  • Qi Sun - , Zhejiang University (Autor:in)
  • Tao Zhang - , CAS - Ningbo Institute of Material Technology and Engineering (Autor:in)

Abstract

sp2 carbon-conjugated covalent organic frameworks (sp2c-COFs) with superb in-plane π-conjugations, high chemical stability, and robust framework structure are expected to be ideal films/membranes for a wide range of applications including energy-related devices and optoelectronics. However, so far, sp2c-COFs have been mainly limited to microcrystalline powders, and this consequently hampered their performances in devices. Herein, we report a simple and robust methodology to fabricate large-area, free-standing, and crystalline sp2c-COF films (TFPT-TMT and TB-TMT) on various solid substrates (e.g., fluorine-doped tin oxide, aluminum sheet, polyacrylonitrile membrane) by self-assembly monolayer-assisted surface-initiated Schiff-base-mediated aldol polycondensation (namely, SI-SBMAP). The resultant sp2c-COF films show lateral sizes up to 120 cm2 and tunable thickness from tens of nanometers to a few micrometers. Owing to the robust framework and highly ordered quasi-1D channels, the sp2c-COF membrane-based osmotic power generator presents an output power density of 14.1 W m-2 under harsh conditions, outperforming most reported COF membranes as well as commercialized benchmark devices (5 W m-2). This work demonstrates a simple and robust interfacial methodology for the fabrication of sp2c-COF films/membranes for green energy applications and potential optoelectronics.

Details

OriginalspracheEnglisch
Seiten (von - bis)5203-5210
Seitenumfang8
FachzeitschriftJournal of the American Chemical Society
Jahrgang145
Ausgabenummer9
PublikationsstatusVeröffentlicht - 8 März 2023
Peer-Review-StatusJa

Externe IDs

PubMed 36779889
WOS 000937472900001
ORCID /0000-0002-8487-0972/work/142247552

Schlagworte

Fächergruppen, Lehr- und Forschungsbereiche, Fachgebiete nach Destatis

Schlagwörter

  • Sustainable power-generation, Membrane