Chemistry

PEG-stabilized coaxial stacking of two-dimensional covalent organic frameworks for enhanced photocatalytic hydrogen evolution

T. Zhou, L. Wang, et al.

This study unveils a novel strategy to stabilize the ordered structure of two-dimensional covalent organic frameworks, which are key materials for photocatalytic hydrogen evolution. By incorporating polyethylene glycol in the mesopore channels, the researchers enhance charge transport and significantly boost hydrogen production under visible light, promising advancements in energy solutions. This groundbreaking research was conducted by Ting Zhou, Lei Wang, Xingye Huang, Junjuda Unruangsri, Hualei Zhang, Rong Wang, Qingliang Song, Qingyuan Yang, Weihua Li, Changchun Wang, Kaito Takahashi, Hangxun Xu, and Jia Guo.

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Abstract

Two-dimensional covalent organic frameworks (2D COFs) are promising materials for photocatalytic hydrogen evolution. However, their layer-by-layer assembly is unstable during photocatalysis, leading to disordered stacking and reduced activity. This study introduces a strategy to stabilize the ordered layered structure of 2D COFs using polyethylene glycol (PEG) filling in the mesopore channels. This enhances charge transport and remarkably promotes hydrogen evolution under visible irradiation.

Publisher

Nature Communications

Published On

Jun 24, 2021

Authors

Ting Zhou, Lei Wang, Xingye Huang, Junjuda Unruangsri, Hualei Zhang, Rong Wang, Qingliang Song, Qingyuan Yang, Weihua Li, Changchun Wang, Kaito Takahashi, Hangxun Xu, Jia Guo

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