Synthesis and characterization of polypyrrole@copper pyromellitic and CO<sub>2 </sub>adsorption ability of separated polypyrrole

TIAN Li; LI Zhen; WANG Huifeng; HAN Changxin; LIU Qiang; BI Chenhao; HU Yuanzhen

doi:10.13801/j.cnki.fhclxb.20211028.003

Volume 39 Issue 8

Aug. 2022

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TIAN Li, LI Zhen, WANG Huifeng, et al. Synthesis and characterization of polypyrrole@copper pyromellitic and CO2 adsorption ability of separated polypyrrole[J]. Acta Materiae Compositae Sinica, 2022, 39(8): 3863-3870. doi: 10.13801/j.cnki.fhclxb.20211028.003

Citation:

TIAN Li, LI Zhen, WANG Huifeng, et al. Synthesis and characterization of polypyrrole@copper pyromellitic and CO₂adsorption ability of separated polypyrrole[J]. Acta Materiae Compositae Sinica, 2022, 39(8): 3863-3870. doi: 10.13801/j.cnki.fhclxb.20211028.003

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Synthesis and characterization of polypyrrole@copper pyromellitic and CO₂adsorption ability of separated polypyrrole

doi: 10.13801/j.cnki.fhclxb.20211028.003

Hunan Provincial Key Defense Laboratory of High Temperature Wear-resisting Materials and Preparation Technology, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, Hunan Provincial Key Laboratory of Advanced Materials for New Energy Storage and Conversion, School of Materials Science and Engineering, Hunan University of Science and Technology, Xiangtan 411201, China

Received Date: 2021-08-09
Accepted Date: 2021-10-13
Rev Recd Date: 2021-09-14

Available Online: 2021-10-28

Publish Date: 2022-08-31

Abstract

Abstract

The molecular structure and performance of polypyrrole is very different due to the difference of its synthesis methods. Utilizing a metal-organic framework (MOF) named copper pyromellitic (Cu-BTC) with three-dimensipnal (3D) mesoporous channels as the host material, the radical polymerization of pyrrole (Py) was conducted in the pores by iodine oxidation method to obtain the composite material polypyrrole@Cu-BTC (PPy@Cu-BTC). XRD, SEM, FTIR, TG and N₂ adsorption-desorption isotherm were used to characterize the prepared Cu-BTC, Py@Cu-BTC and PPy@Cu-BTC, showing the successful synthesis of polymerization in the pores. During the polymerization, the structure and morphology of Cu-BTC keep stable. Based on the charge transfer of host-guest complexation and π-π interaction, the PPy@Cu-BTC composite is a semiconductor material and has a conductivity of 10⁻⁴ S/cm which is at least four orders of magnitude higher than the conductivity of the template Cu-BTC and the as-prepared solid polypyrrole. N₂ adsorption measurement indicated that the as-synthesized PPy separated from PPy@Cu-BTC composite is porous, which has excellent absorption ability of CO₂ with a maximum absorption value of 16 cm³/g and twice as much as the absorption ability of the as-synthesized solid PPy.
- metal organic framework materials,
- radical oxidation polymerization,
- composites,
- conductive polymers,
- adsorption ability
Long Abstrsct
Innovation Points

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References(21)

References

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