Metallocene-based covalent metal-organic porous polymers and their derivatives

Abstract

Metal-organic porous materials (MOPMs), represented by the famous metal–organic frameworks (MOFs), have attracted extensive attention in recent years. While MOFs are unstable in nature, they are constructed by coordination bond with low bond energies (<30 kJ/mol). This work proposed a series of metallocene-based covalent metal–organic porous polymers (CMOPPs). The obtained materials show the incredible ability with resistance to air, water, as well as even to high concentration of HCl or NaOH. Additionally, the metallocene-based CMOPPs possess a specific surface area (SSA) value as high as 716.3 m2g−1, abundant micropores, high heterogeneous catalysis and redox activity. The pyrolyzed derivatives at high temperatures consist of Fe3C/C and Fe/C nanostructures, and possess characteristic ferromagnetism. Generally, constructing of stable MOPMs is realized by strong covalent bond bridging. This work opens a new world of MOPMs which have a great potential to apply in catalysis, electrochemistry, adsorption, separation, gas storage, and so on.

Keywords

• Metallocene
• Covalent
• Porous
• Polymer
• Derivative