Related Experiment Video
Updated: May 9, 2026

Synthesis and Performance Evaluations of ZnCoS/ZnCdS with Twin Crystal Structure for Multifunctional Redox Photocatalysis in Energy Applications
Published on: July 25, 2025
Single-site oxidation-directed topological evolution of hydrogen-bonded organic frameworks for efficient
Yaoyao Peng1,2, Lewang Yuan1, Kang-Kai Liu1,2
1State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan, China.
Abstract:
Photocatalytic hydrogen peroxide synthesis offers a green alternative to the energy-intensive anthraquinone process. However, hydrogen-bonded organic frameworks remain underexplored in this field due to their limited stability and lack of photoactive units. In this work, we modulate the oxidation state of photosensitive structural motifs to precisely direct topological evolution of hydrogen-bonded organic frameworks at a single site. Stepwise oxidation of the sulfur center enhances framework stability and optimizes hydrogen-bonding networks and charge transport pathways. PTH-SO2-HOF exhibits high charge separation efficiency, delivering a competitive hydrogen peroxide production rate of 2480 μmol g-1 h-1 in pure water, which reaches 5329 μmol g-1 h-1 with a sacrificial agent. Mechanistic studies reveal synergistic interplay between the higher oxidation state and hydrogen-bonding network in promoting the oxygen reduction pathway. This work provides a new strategy for designing robust and efficient hydrogen-bonded organic frameworks for photocatalysis.
Related Concept Videos
Oxidation and Reduction of Organic Molecules
The removal of an electron from a molecule, results in a...
Heterogeneous Catalysis
Oxidative Cleavage of Alkenes: Ozonolysis
Ozone is a symmetrical bent molecule stabilized by a resonance structure.
Oxidation of Alkenes: Syn Dihydroxylation with Osmium Tetraoxide
Oxidation of Alkenes: Syn Dihydroxylation with Potassium Permanganate
Photochemical Electrocyclic Reactions: Stereochemistry
Selection Rules: Photochemical Activation
