Facile reduction of metal-organic framework to fabricate Cu(I)-based porous composite with high Cu(I) content

The integration of a catalytic component with a porous structure is ideal for heterogeneous catalysis due to its higher external surface area and lower mass transfer resistance. A facile reduction strategy is proposed to prepare Cu(I)-based porous materials at room temperature. By using hydrazine hydrate as a reducing agent, the metal-organic framework is effectively reduced to produce a high Cu(I) content material with macroporous structure and maintaining the octahedral morphology. The as-prepared Cu(I)-based porous materials show excellent catalytic performance in the Cu(I)-catalyzed azide-alkyne cycloaddition reactions, and are applicable to versatile acetylenyl substrates.