What question did this study set out to answer?

To examine the relationship between the geometry of alkyne bonds and their performance in photocatalytic hydrogen evolution.

March 25, 2026

Bent Alkyne Units as Active Sites: Structure–Activity Correlation in Graphdiyne-Inspired Polymers for Photocatalytic Hydrogen Evolution

XWX.J. WuChinese Academy of Sciences JCJing ChenJilin University JHJingyi HeChinese Academy of Sciences

Key Points

To examine the relationship between the geometry of alkyne bonds and their performance in photocatalytic hydrogen evolution.
Synthesis of graphdiyne-derived polymers
Characterization of electronic structure
Photocatalytic activity assessment
Identified optimal geometry for alkyne bonds enhances hydrogen evolution rate
Demonstrated tunable electronic properties correlate with catalytic efficiency

Abstract

Alkyne bonds are promising for photoelectrocatalysis due to their tunable electronic structure; however, the relationship between their local geometry and photocatalytic function remains unclear. Herein, a graphdiyne-derived polymer featuring curved...

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