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Polyhydroxy porphyrin polymer and preparation method thereof

A hydroxyporphyrin and polymer technology, applied in the fields of material science and electrochemistry, can solve the problems of limiting the energy density of supercapacitors, inaccessible pores, and inability to accommodate solvated electrolyte ions, and achieve excellent chemical stability and thermal stability. High stability, strong rigidity, and the effect of being conducive to mass production

Active Publication Date: 2019-10-01
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, activated carbon can only store charges through double-layer capacitance, and many of its pores are inaccessible or too small to accommodate solvated electrolyte ions, thus greatly limiting the improvement of the energy density of supercapacitors.

Method used

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  • Polyhydroxy porphyrin polymer and preparation method thereof
  • Polyhydroxy porphyrin polymer and preparation method thereof
  • Polyhydroxy porphyrin polymer and preparation method thereof

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0043] The synthesis of the present embodiment polyhydroxyporphyrin polymer P1 is as follows:

[0044] First stage: 87.5 mg of 5,10,15,20-tetrakis(4-formylphenyl)-21H,23H-porphyrin (TFPP) (0.12 mmol) was sonicated in 5 mL of fresh In the distilled dioxane, add 41mg phloroglucinol (0.32mmol) to the solution, ultrasonically wait for it to dissolve completely, stir the mixture solution at 70°C for 60 minutes, then add 10μL 1M hydrochloric acid to the reaction solution solution, the solution turned blue, and the mixture was refluxed at 70° C. for 3 hours under the protection of argon.

[0045] The second stage: the reaction system was transferred to a 20mL polytetrafluoroethylene liner, and the air in the autoclave was purged with argon to remove the air in the autoclave. After tightening the seal, solvothermal reaction was carried out in an oven at 200°C for 4 days.

[0046] Purification: After the reaction is completed, after cooling slowly at room temperature, the solvent is r...

Embodiment 2

[0050] The synthesis of the present embodiment polyhydroxyporphyrin polymer P2 is as follows:

[0051] First stage: 87.5 mg of 5,10,15,20-tetrakis(4-formylphenyl)-21H,23H-porphyrin (TFPP) (0.12 mmol) was sonicated in 5 mL of fresh In distilled dioxane, add 38.4mg of 1,5-naphthalenediol (0.24mmol) to the solution, ultrasonically wait for it to dissolve completely, stir the mixture solution at 70°C for 80 minutes, and then add 8 μL of 1M hydrochloric acid solution, the solution turned blue, and the mixture was refluxed at 70°C for 4 hours under the protection of argon.

[0052] The second stage: transfer the reaction system to a 20mL polytetrafluoroethylene liner, purge the autoclave with argon to remove the air in the autoclave, tighten the seal, and conduct a solvothermal reaction in an oven at 200°C for 3 days.

[0053] Purification: After cooling slowly at room temperature, the solvent was removed by filtration. Wash the obtained dark gray product three to five times with ...

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Abstract

The invention discloses a polyhydroxy porphyrin porous polymer and a preparation method and application thereof and belongs to the technical field of material science and electrochemistry. According to the polyhydroxy porphyrin polymer, with the two units of aroma phenol and porphyrin derivatives as a core, through a phenolic resin polymerization reaction, through structural regulation and control, under solvent thermal, the high-stability polyhydroxy porphyrin porous polymer is prepared. The polymer has the intrinsic characteristics of being high in specific surface area, narrow in hole distribution, stable in structure and low in framework density, and the material is endowed with excellent chemical stability and thermal stability; through an ultra-large phi-phi conjugate porphyrin ringstructure, the electron / ion transmission efficiency of a framework is obviously improved, through rich phenolic hydroxyl groups, the surface contact performance and diffusion speed of a solvent and electrolyte molecules are optimized, and the electrochemical performance of the material is improved. Through the characteristics, the material has actual application value in the fields such as electrochemical catalysis and energy storage.

Description

technical field [0001] The invention belongs to the technical fields of material science and electrochemistry, and specifically relates to a class of polyhydroxyporphyrin polymers and a preparation method thereof. [0002] technical background [0003] As people's demand for energy continues to grow, it is increasingly important to develop efficient and sustainable energy storage technologies. At present, the most commonly used storage devices are batteries. These devices have problems including time-consuming charging, inefficient energy transmission, and large capacitance loss. These factors greatly constrain people's demand for energy. [0004] Supercapacitors are very likely to replace batteries in the future due to their advantages such as high energy density, fast charging / discharging rate and good stability. Its charge storage is mainly due to the physical charge separation across the interface on the electric double-layer capacitor (EDLC) and the occurrence of farad...

Claims

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Application Information

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IPC IPC(8): C08G61/12
CPCC08G61/124C08G2261/1422C08G2261/17C08G2261/18C08G2261/3221C08G2261/44C08G2261/592
Inventor 顾志国申锐刘勇李涛路惠舒符秋婷晏晓东
Owner JIANGNAN UNIV