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Preparation method for polypyrrole (PPy) and nano-crystalline celluloses (NCCs) compound film electrode material

A nanocellulose and composite technology, which is applied in the field of preparation of polypyrrole PPy nanocellulose NCCs composite membrane electrode materials, can solve problems such as the working voltage and energy storage density need to be improved, processing difficulties, poor mechanical properties, etc. Low cost, enhanced electrochemical properties, and mild synthesis conditions

Active Publication Date: 2013-11-13
上海上惠纳米科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, pure PPy as a capacitor material has problems such as poor mechanical properties, difficult processing, working voltage and energy storage density to be improved, etc.

Method used

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  • Preparation method for polypyrrole (PPy) and nano-crystalline celluloses (NCCs) compound film electrode material
  • Preparation method for polypyrrole (PPy) and nano-crystalline celluloses (NCCs) compound film electrode material
  • Preparation method for polypyrrole (PPy) and nano-crystalline celluloses (NCCs) compound film electrode material

Examples

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Embodiment 1

[0020] Embodiment 1: The preparation method of the polypyrrole PPy nanocellulose NCCs composite membrane electrode material that this embodiment provides, it comprises the following steps: to plant raw material pretreatment and hydrolysis, obtain NCCs from plant raw material, the NCCs that will obtain and The pyrrole monomers are mixed to form an electrolyte, and the polypyrrole PPy nanocellulose NCCs composite membrane electrode material is prepared by an electrochemical method.

[0021] Described preparation method specifically comprises the following steps:

[0022] (1) For the pretreatment and hydrolysis of the plant raw material, the plant raw material is added to 2% NaOH aqueous solution, heated and reacted for 1h and then washed by suction filtration, then heated and reacted in the NaClO solution for 30min, after suction filtered and washed, rinse with 55% H 2 SO 4 Heating and hydrolysis reaction in aqueous solution for 30mins, and finally centrifuging and washing to o...

Embodiment 2

[0029] Example 2: The preparation method of the polypyrrole PPy nanocellulose NCCs composite membrane electrode material provided in this example, the steps are basically the same as in Example 1, except that:

[0030] (1) For the pretreatment and hydrolysis of ramie, ramie is added to 2% NaOH aqueous solution, heated and reacted for 1 hour, then filtered and washed by suction, then heated and reacted in NaClO solution for 30 minutes, after suction filtered and washed, rinse with 55% H 2 SO 4 Heating and hydrolysis reaction in aqueous solution for 30mins, and finally centrifuging and washing to obtain nanocellulose NCCs;

[0031] (2) The nanocellulose NCCs prepared in step (1) is mixed with deionized aqueous solution of 5.0 mg / mL pyrrole monomer by 0.1 mg / mL to obtain an electrolyte;

[0032] (3) A three-electrode system is adopted, with conductive glass ITO / FTO as the working electrode, the reference electrode and the counter electrode are respectively a saturated calomel el...

Embodiment 3

[0033] Example 3: The preparation method of the polypyrrole PPy nanocellulose NCCs composite membrane electrode material provided in this example, its steps are basically the same as those in Example 1 and 2, the difference is:

[0034] (1) For the pretreatment and hydrolysis of sisal, sisal is added to 2% NaOH aqueous solution, heated and reacted for 1h and then washed by suction filtration, then heated and reacted in NaClO solution for 30min, after suction filtered and washed, rinse with 55% H 2 SO 4 Heating and hydrolysis reaction in aqueous solution for 30mins, and finally centrifuging and washing to obtain nanocellulose NCCs;

[0035] (2) The nanocellulose NCCs prepared in step (1) is mixed with a deionized aqueous solution of 15.0 mg / mL pyrrole monomer at 5.0 mg / mL to obtain an electrolyte;

[0036] (3) A three-electrode system is adopted, the glassy carbon electrode GC is used as the working electrode, the reference electrode and the counter electrode are respectively ...

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Abstract

The invention discloses a preparation method for a PPy and NCCs compound film electrode material. The preparation method is characterized by comprising the steps of performing pretreatment and hydrolysis on plant raw materials to obtain NCCs from the plant raw materials, mixing the obtained NCCs with pyrrole monomers to form an electrolytic solution, and obtaining the PPy and NCCs compound film electrode material through preparation by an electrochemical method. According to the preparation method, the PPy and NCCs compound film electrode material with the electrochemical property enhanced is obtained by using cheap plant raw materials or even waste plant raw materials; the preparation method is fast and environmentally friendly, mild in synthesis condition and low in cost. The preparation method can also be broadened to be applied to preparation of various conductive polymer composite materials, such as polyaniline, polyacetylene, polythiophene and poly-phenylene vinylene.

Description

technical field [0001] The invention relates to the technical field of polymer electrode material manufacturing, in particular to a method for preparing a polypyrrole PPy nanocellulose NCCs composite membrane electrode material. Background technique [0002] Among numerous conductive polymers, polypyrrole (PPy) has attracted extensive attention because of its good air stability, high conductivity with a wide range of variation, and easy synthesis. Conductive polymer materials have the advantages of small internal resistance, good high power, high energy, and large specific capacity. Conductive polymers currently used in supercapacitor electrode materials include polypyrrole (PPy), polyaniline (PANI), polyacene (PAS), polythiophene (PTH), and polyparaphenylene (PPP). [0003] Polypyrrole (PPy) is a conductive polymer discovered earlier. Due to the relatively simple synthesis method and high conductivity of PPy, it is widely used in electrode materials. However, pure PPy as ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/86
Inventor 施利毅颜蔚王响冯欣孟祥浩
Owner 上海上惠纳米科技有限公司
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