Iron-based porous coordination polymer as well as preparation method and application thereof

By preparing iron-based porous coordination polymers, the problem of high energy consumption of low-temperature distillation is solved, efficient separation of acetylene and ethylene gas is achieved, and low overpotential and high current density are shown in the electrocatalytic oxygen evolution reaction, providing a low-cost solution.

CN120349523APending Publication Date: 2025-07-22DEZHOU UNIV
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Patent Information

Application Number
CN202510563856.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-30
Publication Date
2025-07-22

AI Technical Summary

Technical Problem

In the prior art, the purification of olefins and alkynes with low temperature distillation method has high energy consumption and large equipment investment. The precious metal-based electrocatalysts are costly in electrocatalytic oxygen evolution reactions, making them difficult to apply on a large scale.

Method used

An iron-based porous coordination polymer was developed using Fe3O(DMTD)3(TPP) structure, and connected to DMTD2- and TPP ligands through [Fe3(μ3-O)(CO2)6] trinuclear iron clusters to form a three-dimensional framework structure for gas separation and electrocatalytic oxygen evolution reaction.

Benefits of technology

It realizes efficient separation of acetylene and ethylene gas, reduces energy consumption, and shows excellent catalytic performance in electrocatalytic oxygen evolution reaction, low overpotential, high current density, high crystallinity and high purity.

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Abstract

The invention belongs to the technical field of crystal materials, and particularly relates to an iron-based porous coordination polymer as well as a preparation method and application thereof. One repeating unit in the crystal structure of the iron-based porous coordination polymer is composed of Fe3O4 (DMTD) 3 (TPP), and ligands are 3, 4-dimethyl (2, 3-B) thiophene-2, 5-dicarboxylic acid and 2, 4, 6-tri-(4-pyridyl) pyridine; the iron-based porous coordination polymer has high crystallinity, high purity and a three-dimensional frame structure. The iron-based porous coordination polymer can realize separation of acetylene and ethylene mixed gas and ethane and ethylene mixed gas; the catalyst can be used for electrocatalytic oxygen evolution reaction, and OER crossing point location is 260 mV.
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