What question did this study set out to answer?

This research aims to improve hydrogen production efficiency in covalent organic frameworks by varying fluorine substitution levels.

July 9, 2026Small

Electronic Engineering of Donor–Acceptor Covalent Organic Frameworks via Fluorine Substitution for Efficient Solar Hydrogen Production

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Authors

HGHimanshu GuptaIndian Institute of Technology Ropar ACAvanti ChakrabortyS.N. Bose National Centre for Basic Sciences DDDeepak DangeIndian Institute of Technology Ropar

Discussion

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Implication

Randomized trial demonstrates enhanced hydrogen production in covalent organic frameworks through fluorine substitution, suggesting innovative material design.

Key Points

This research aims to improve hydrogen production efficiency in covalent organic frameworks by varying fluorine substitution levels.
Designed and synthesized four pyrene‐based COFs with 0 to 4 fluorine substituents.
Characterized the structural, optoelectronic, and photocatalytic properties of each COF variant.
Compared hydrogen evolution rates under visible light with and without a cocatalyst.
Py‐2Fl COF achieved the highest hydrogen evolution rate of 7150 µmol g −1 h −1 in the presence of 1 wt.% Pt.
Without a platinum co‐catalyst, the COF still produced 614 µmol g −1 h −1 of hydrogen.
All COFs maintained structural stability and catalytic activity after multiple reuse cycles.

Cite This Study

Gupta et al. (2026) studied this question.

synapsesocial.com/papers/6a4f3bb72b81a944af575834 https://doi.org/10.1002/smll.74415

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July 9, 2026Small

Electronic Engineering of Donor–Acceptor Covalent Organic Frameworks via Fluorine Substitution for Efficient Solar Hydrogen Production

View Full Paper

Ask AI

Bookmark

Authors

HGHimanshu GuptaIndian Institute of Technology Ropar ACAvanti ChakrabortyS.N. Bose National Centre for Basic Sciences DDDeepak DangeIndian Institute of Technology Ropar

Discussion

Member takes

Implication

Randomized trial demonstrates enhanced hydrogen production in covalent organic frameworks through fluorine substitution, suggesting innovative material design.

Key Points

This research aims to improve hydrogen production efficiency in covalent organic frameworks by varying fluorine substitution levels.
Designed and synthesized four pyrene‐based COFs with 0 to 4 fluorine substituents.
Characterized the structural, optoelectronic, and photocatalytic properties of each COF variant.
Compared hydrogen evolution rates under visible light with and without a cocatalyst.
Py‐2Fl COF achieved the highest hydrogen evolution rate of 7150 µmol g −1 h −1 in the presence of 1 wt.% Pt.
Without a platinum co‐catalyst, the COF still produced 614 µmol g −1 h −1 of hydrogen.
All COFs maintained structural stability and catalytic activity after multiple reuse cycles.

Cite This Study

Gupta et al. (2026) studied this question.

synapsesocial.com/papers/6a4f3bb72b81a944af575834 https://doi.org/10.1002/smll.74415

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