Preparation method of a novel hybrid fiber carbon paper for supercapacitor

A technology of supercapacitors and hybrid fibers, which is applied in the manufacture of hybrid/electric double-layer capacitors, pulping with inorganic alkalis, adding inorganic compounds, etc., can solve the problems of general repeatability and low synthesis efficiency, and achieve rich raw materials and broaden Effects of Topography Controlled Studies

Active Publication Date: 2019-02-19
QILU UNIV OF TECH
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Problems solved by technology

However, its synthesis efficiency is low, the repeatability is average, and factors such as the degree of binding need to be considered

Method used

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  • Preparation method of a novel hybrid fiber carbon paper for supercapacitor

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preparation example Construction

[0028] The preparation method of the novel hybrid fiber carbon paper for supercapacitor comprises the following steps:

[0029] (1) Using wood as the precursor, through the papermaking process, the wood is cooked to form a slurry;

[0030] (2) The slurry is washed, screened, and beaten to form pulp, and then fiber paper is formed through the papermaking process of the sheet machine;

[0031] (3) Immerse the fiber paper in the electroless Ni plating solution, dry it after completing the metal loading reaction, and obtain the hybrid fiber paper;

[0032] (4) Under the protection of nitrogen, the obtained hybrid fiber paper is calcined at high temperature to form a new hybrid fiber carbon paper material; the obtained new hybrid fiber carbon paper material has certain electrical conductivity and electrochemical stability, and can be used in super field of capacitors.

[0033] In the step (1), the larch is used as the precursor, and the wood chips are cooked with 12%-18% sodium h...

Embodiment 1

[0039] Larch was selected as the precursor, and wood chips were cooked with 12% sodium hydroxide solution at 180 °C for 4 h to form a slurry, then washed with deionized water until pH = 7, screened by a screener, and beaten to form pulp. The degree of beating is 60 °SR, and finally paper is formed through the papermaking process of a sheet machine, and the paper weight is 120 g / m2. Immerse the fiber paper in electroless Ni plating solution (100mg NiSO 4 , 100 mg iminodiacetic acid, 200 μL 32% NaOH solution, 500 μL N 2 h 4 , 10 mL of deionized water) to complete metal loading, and react at 80 °C for 1 h. After drying at 100°C, the hybrid fiber paper was obtained, and then calcined at a calcination temperature of 700°C for 2 h under the protection of nitrogen to form a carbon material to obtain a new type of hybrid fiber carbon paper, which can be effectively used in supercapacitors.

Embodiment 2

[0041] Larch was selected as the precursor, and wood chips were cooked with 15% sodium hydroxide solution at 160 °C for 3 h to form a slurry, then washed with deionized water until pH = 7, screened by a screener, and beaten to form pulp. The degree of beating is 50 °SR, and finally paper is formed through the papermaking process of a sheet machine, and the basis weight of the paper is 100 g / m2. Dip the fiber paper in electroless Ni plating solution (150mg NiSO 4 , 150 mg iminodiacetic acid, 200 μL 32% NaOH solution, 600 μL N 2 h 4 , 20 mL of deionized water) to complete the metal loading, and reacted at 80 °C for 1 h. After drying at 90°C, the hybrid fiber paper was obtained, and then calcined at a calcination temperature of 700°C for 2 h under the protection of nitrogen to form a carbon material to obtain a new type of hybrid fiber carbon paper, which can be effectively used in supercapacitors.

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Abstract

The invention particularly relates to a method for preparing novel hybrid fiber carbon paper for a supercapacitor. The method comprises the following steps: boiling a wood material which serves as a precursor through a papermaking process to form pulp; washing, screening and sizing to form paper pulp, and forming fiber paper in the papermaking process; completing metal loading on the fiber paper by a chemical plating method, and calcining at high temperature in nitrogen protection to form a novel hybrid fiber carbon paper material. The method is rich in raw material since woods are used as the raw material, and can be used for saving energy and reducing consumption; and the structure of the hybrid fiber carbon paper is fibrous through the papermaking process, and stable hybrid carbon fiber paper is formed efficiently by simple chemical plating and carbonizing methods; therefore, study on shape-controlled biomass energy, preparation of biomass-based carbon materials and application field of supercapacitors can be widened.

Description

technical field [0001] The invention relates to the technical field of hybrid carbon fibers, in particular to a method for preparing novel hybrid fiber carbon paper used for supercapacitors. Background technique [0002] Carbon fiber has the advantages of developed pore structure, stable thermodynamic performance, low cost and easy industrialization, etc., and is widely used in the research of supercapacitors to deal with increasingly severe energy and environmental problems. However, due to the complex structure of wood, it is difficult to realize the controllable preparation of wood-based carbon material morphology and pore structure by traditional technology, which affects its application in supercapacitors. [0003] Transform the amorphous microstructure of wood into a fiber structure by means of papermaking, and combine the hybridization technology to control the structure and composition of the carbon material, so as to improve the conductivity, wettability and active ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21C3/02D21H17/03D21H17/64D21H17/66H01G11/84
CPCY02E60/13
Inventor 孔凡功赵鑫陈洪雷王守娟
Owner QILU UNIV OF TECH
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