Construction of Modifiable Phthalocyanine-Based Covalent Organic Frameworks with Irreversible Linking for Efficient Photocatalytic CO2 Reduction

Abstract Covalent organic frameworks (COFs) are considered promising catalysts for photocatalytic CO 2 reduction reaction (pCO 2 RR) due to facilitated regulations. However, the instability of COFs with dynamic reversible covalent bonds and the limited modifiability of COFs with irreversible covalent bonds restricted the enhancement of the pCO 2 RR performance. Herein, three phthalocyanine-based COFs with ether-linked, CoOP, CoPOP, and CoBOP, were successfully prepared via in situ polycondensation using modifiable bis-phthalonitrile. CoBOP achieved a record of syngas performance in pCO 2 RR systems with photosensitizers and sacrificial agents (CO 83.7 mmol g −1 h −1 and H 2 54.7 mmol g −1 h −1 ), surpassing…

• NU
  Northwestern University
• NP
  Northwestern Polytechnical University
• FR
  Fundamental Research Funds for the Central Universities

  Award: D5204230171