Amorphous Ru-bda COF Catalyst

Exponentially Higher Water Oxidation Activity

Dehydration-assembled amorphous metal-covalent organic framework enhances Ru site accessibility while retaining molecular catalyst activity, offering a new design route for heterogeneous molecular catalysis.

Wei, Yu · Jialuo, Li · Zhao, Chen · Xu, Hanwen · Liu, Jinxuan · Xin, Ding · Gao, Yan

Inorganic Chemistry 2026

Specifications

Photocatalytic Water Oxidation Rate Constant

{'zh': '68.11', 'en': '68.11'} μmol g-1 s-1

Advantages

Exponential Activity Boost

Dehydration assembly expands the framework and reduces particle size, greatly improving the accessibility of Ru active sites, leading to a rate constant of 68.11 μmol g-1 s-1.

Facilitates O–O Bond Formation

The flexible microenvironment and accessible metal sites in the amorphous skeleton promote a water nucleophilic attack pathway, facilitating efficient O═O bond formation.

Modular Assembly

The modular assembly strategy can conveniently integrate various molecular catalysts into metal-covalent organic frameworks, offering a general design route for heterogeneous molecular catalysis.

Applications

• Photocatalytic Water Splitting：Efficient photocatalytic water oxidation half-reaction boosts overall water splitting.
• Oxygen Evolution Reaction：Provides a highly active heterogeneous OER catalyst to lower overpotential.
• Electrocatalytic Oxygen Evolution：Amorphous framework retains molecular catalyst activity for electrocatalytic oxygen evolution.
• Heterogeneous Catalysis：Immobilizes homogeneous molecular catalysts for high activity and easy recovery.