sp2 Carbon-Conjugated Covalent Organic Frameworks (sp2c-COFs): Synthesis and Application in Photocatalytic Water Splitting

Shiqiong Peng; Renjie Wang; Yao Yang; Shuyan Wang; En Liang; Bing Han; Junbo Li; Xianglin Yu; Qichun Zhang

doi:10.1002/marc.202400967

sp² Carbon-Conjugated Covalent Organic Frameworks (sp²c-COFs): Synthesis and Application in Photocatalytic Water Splitting

Shiqiong Peng
, Renjie Wang
, Yao Yang
, Shuyan Wang
, En Liang
, Bing Han
, Junbo Li^*
, Xianglin Yu^*
, Qichun Zhang^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

10 Citations (Scopus)

Abstract

Preparation of irreversible sp² carbon-conjugated covalent organic frameworks (sp²c-COFs) with specific porosity, easy structural functionalization, high chemical stability, and unique π-electron conjugation structure (especially the combination of π–π stacking interactions and conjugation system), can remove the barrier of electron transfer and provide a unique advantage for photocatalytic water splitting. Herein, based on three kinds of reactions (Aldol condensation reaction, Knoevenagel condensation reaction, and Horner-Wadsworth-Emmons reaction) and guided by the precise modulation of ligand structure and topology, this review summarizes the synthesis of sp²c-COFs and their applications in photoelectrocatalytic water splitting (hydrogen evolution and oxygen evolution reactions). Furthermore, challenges and possible research directions for sp²c-COFs in photocatalytic water splitting are also provided. © 2025 Wiley-VCH GmbH.

Original language	English
Article number	2400967
Number of pages	35
Journal	Macromolecular Rapid Communications
Volume	46
Issue number	8
Online published	9 Feb 2025
DOIs	https://doi.org/10.1002/marc.202400967
Publication status	Published - Apr 2025

Funding

S.P. and R.W. contributed equally to this work. This work was supported by the Open Fund of Beijing National Laboratory for Molecular Sciences (No. BNLMS201842), and Postgraduate Innovation Foundation from Wuhan Institute of Technology. Q.Z. acknowledges the funding support from the City University of Hong Kong (9380117 and 7020089), Innovation and Technology Fund (ITF, ITS/322/22), ITC via the Hong Kong Branch of the National Precious Metals Material Engineering Research Center (NPMM), and State Key Laboratory of Supramolecular Structure and Materials, Jilin University 358 (sklssm2024039), Innovative Research Group of Hubei Natural Science Foundation (JCZRQT202500124).

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Research Keywords

conjugated covalent organic frameworks
hydrogen evolution and oxygen evolution reactions
photocatalytic water splitting
sp2 carbon-conjugated
synthesis

Access Output

10.1002/marc.202400967

Other Access Options

Check CityUHK Library

Permanent Link

Right click to copy link

Cite this

@article{5fce4e31805d4f98b547d222bcfb2c46,

title = "sp2 Carbon-Conjugated Covalent Organic Frameworks (sp2c-COFs): Synthesis and Application in Photocatalytic Water Splitting",

abstract = "Preparation of irreversible sp2 carbon-conjugated covalent organic frameworks (sp2c-COFs) with specific porosity, easy structural functionalization, high chemical stability, and unique π-electron conjugation structure (especially the combination of π–π stacking interactions and conjugation system), can remove the barrier of electron transfer and provide a unique advantage for photocatalytic water splitting. Herein, based on three kinds of reactions (Aldol condensation reaction, Knoevenagel condensation reaction, and Horner-Wadsworth-Emmons reaction) and guided by the precise modulation of ligand structure and topology, this review summarizes the synthesis of sp2c-COFs and their applications in photoelectrocatalytic water splitting (hydrogen evolution and oxygen evolution reactions). Furthermore, challenges and possible research directions for sp2c-COFs in photocatalytic water splitting are also provided. {\textcopyright} 2025 Wiley-VCH GmbH.",

keywords = "conjugated covalent organic frameworks, hydrogen evolution and oxygen evolution reactions, photocatalytic water splitting, sp2 carbon-conjugated, synthesis",

author = "Shiqiong Peng and Renjie Wang and Yao Yang and Shuyan Wang and En Liang and Bing Han and Junbo Li and Xianglin Yu and Qichun Zhang",

year = "2025",

month = apr,

doi = "10.1002/marc.202400967",

language = "English",

volume = "46",

journal = "Macromolecular Rapid Communications",

issn = "1022-1336",

publisher = "Wiley-VCH Verlag GmbH",

number = "8",

}

TY - JOUR

T1 - sp2 Carbon-Conjugated Covalent Organic Frameworks (sp2c-COFs)

T2 - Synthesis and Application in Photocatalytic Water Splitting

AU - Peng, Shiqiong

AU - Wang, Renjie

AU - Yang, Yao

AU - Wang, Shuyan

AU - Liang, En

AU - Han, Bing

AU - Li, Junbo

AU - Yu, Xianglin

AU - Zhang, Qichun

PY - 2025/4

Y1 - 2025/4

N2 - Preparation of irreversible sp2 carbon-conjugated covalent organic frameworks (sp2c-COFs) with specific porosity, easy structural functionalization, high chemical stability, and unique π-electron conjugation structure (especially the combination of π–π stacking interactions and conjugation system), can remove the barrier of electron transfer and provide a unique advantage for photocatalytic water splitting. Herein, based on three kinds of reactions (Aldol condensation reaction, Knoevenagel condensation reaction, and Horner-Wadsworth-Emmons reaction) and guided by the precise modulation of ligand structure and topology, this review summarizes the synthesis of sp2c-COFs and their applications in photoelectrocatalytic water splitting (hydrogen evolution and oxygen evolution reactions). Furthermore, challenges and possible research directions for sp2c-COFs in photocatalytic water splitting are also provided. © 2025 Wiley-VCH GmbH.

AB - Preparation of irreversible sp2 carbon-conjugated covalent organic frameworks (sp2c-COFs) with specific porosity, easy structural functionalization, high chemical stability, and unique π-electron conjugation structure (especially the combination of π–π stacking interactions and conjugation system), can remove the barrier of electron transfer and provide a unique advantage for photocatalytic water splitting. Herein, based on three kinds of reactions (Aldol condensation reaction, Knoevenagel condensation reaction, and Horner-Wadsworth-Emmons reaction) and guided by the precise modulation of ligand structure and topology, this review summarizes the synthesis of sp2c-COFs and their applications in photoelectrocatalytic water splitting (hydrogen evolution and oxygen evolution reactions). Furthermore, challenges and possible research directions for sp2c-COFs in photocatalytic water splitting are also provided. © 2025 Wiley-VCH GmbH.

KW - conjugated covalent organic frameworks

KW - hydrogen evolution and oxygen evolution reactions

KW - photocatalytic water splitting

KW - sp2 carbon-conjugated

KW - synthesis

UR - https://www.scopus.com/pages/publications/105002653648

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-105002653648&origin=recordpage

U2 - 10.1002/marc.202400967

DO - 10.1002/marc.202400967

M3 - RGC 21 - Publication in refereed journal

SN - 1022-1336

VL - 46

JO - Macromolecular Rapid Communications

JF - Macromolecular Rapid Communications

IS - 8

M1 - 2400967

ER -

sp² Carbon-Conjugated Covalent Organic Frameworks (sp²c-COFs): Synthesis and Application in Photocatalytic Water Splitting

Abstract

Funding

UN SDGs

Research Keywords

Access Output

Other Access Options

Permanent Link

Other Files and Links

Fingerprint

ITF: High Performance All-organic Rechargeable Sodium-ion Batteries Based on Covalent Organic Frameworks

Cite this

sp2 Carbon-Conjugated Covalent Organic Frameworks (sp2c-COFs): Synthesis and Application in Photocatalytic Water Splitting

Abstract

Funding

UN SDGs

Research Keywords

Access Output

Other Access Options

Permanent Link

Other Files and Links

Fingerprint

Projects

ITF: High Performance All-organic Rechargeable Sodium-ion Batteries Based on Covalent Organic Frameworks

Cite this

sp² Carbon-Conjugated Covalent Organic Frameworks (sp²c-COFs): Synthesis and Application in Photocatalytic Water Splitting