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Porous carbon and nitrogen two-dimensional nanosheets and method for preparing ipmc electrochemical actuators

A two-dimensional nano, porous carbon technology, applied in nitrogen and non-metallic compounds, nanotechnology, nanotechnology, etc., can solve the problems of inability to further manufacture IPMC devices, low electrochemical activity of low-dimensional nanocarbon materials, etc., to achieve excellent Electromechanical response performance, excellent electrochemical energy storage, easy industrial production effect

Active Publication Date: 2017-04-26
SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the electrochemical activity of low-dimensional nanocarbon materials is low, and it is impossible to further manufacture high-performance IPMC devices.

Method used

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  • Porous carbon and nitrogen two-dimensional nanosheets and method for preparing ipmc electrochemical actuators
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  • Porous carbon and nitrogen two-dimensional nanosheets and method for preparing ipmc electrochemical actuators

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preparation example Construction

[0033] The method for preparing porous carbon-nitrogen two-dimensional nanosheets according to the present invention includes the following steps (a) and (b) performed in sequence.

[0034]Step (a): Grinding the carbon-nitrogen precursor and glucose (the mass ratio of the carbon-nitrogen precursor to glucose can be 100:1-1:1) to obtain a mixture evenly, and heating the mixture (for example, in a muffle furnace) to 450°C to 600°C to obtain a composite of graphite-phase carbon nitrogen and two-dimensional nano-carbon sheets. According to an embodiment of the present invention, the carbon-nitrogen precursor may include at least one selected from the group consisting of urea, dicyandiamide, melamine, and their respective mixtures with low-dimensional nanocarbon. Here, the low-dimensional nanocarbon can be carbon nanotubes or graphene, etc., and the stability of the material structure can be improved by adding low-dimensional nanocarbon. According to the embodiment of the present ...

Embodiment 1

[0047] Grind 10g of urea, 0.5g of glucose and 0.06g of single-walled carbon nanotubes (carbon nitrogen precursor: glucose is about 20:1) evenly, put them into a crucible, and dry them for one day. The mixture was placed in a muffle furnace, heated to 500°C at a heating rate of 5°C / min, and kept at this temperature for 3h to form a composite of gray graphite phase carbon nitrogen and two-dimensional carbon nanosheets. Afterwards, the compound was transferred to a tube furnace, and an inert gas (such as argon) or nitrogen was introduced at a rate of 200 sccm, kept at 100 °C for 1 h to remove water vapor, and then heated at a rate of 10 °C / min to 800°C, while keeping it warm for 1h until black porous carbon-nitrogen two-dimensional nanosheet powder is formed.

[0048] The mass fraction of nitrogen in the porous carbon-nitrogen two-dimensional nanosheet is 13.99%, and its conductivity is 382Sm -1 . in addition, figure 2 shows a transmission electron microscope image of a porou...

Embodiment 2

[0054] Grind 10g of urea, 0.5g of glucose and 0.06g of single-walled carbon nanotubes (carbon nitrogen precursor: glucose is about 20:1) evenly, put them into a crucible, and dry them for one day. The mixture was placed in a muffle furnace, heated to 500°C at a heating rate of 5°C / min, and kept at this temperature for 3h to form a composite of gray graphite phase carbon nitrogen and two-dimensional carbon nanosheets. Then transfer the above compound to a tube furnace, feed inert gas (such as argon) or nitrogen at a rate of 200 sccm, keep at 100°C for 1 hour to remove water vapor, and then raise the temperature to 700°C at a rate of 5°C / min , while keeping it warm for 5 hours until black porous carbon-nitrogen two-dimensional rice flake powder is formed. The mass fraction of nitrogen in porous carbon-nitrogen two-dimensional nanosheets is 16.56%, and the conductivity is 6.4Sm -1 , the pore size range is 0.93nm ~ 93.1nm.

[0055] 75 mg of porous carbon-nitrogen two-dimensional...

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Abstract

The invention provides a porous carbon-nitrogen two-dimensional nanosheet and a method for preparing an IPMC electrochemical driver by using the porous carbon-nitrogen two-dimensional nanosheet. The porous carbon-nitrogen two-dimensional nanosheet is prepared by the following method: the carbon-nitrogen precursor and glucose are uniformly ground to obtain a mixture, and the mixture is heated to 450°C to 600°C to obtain graphite phase carbon nitrogen and two-dimensional nanocarbon sheet The composite; under the protection of gas, the composite is heated to 700°C-1000°C to obtain a porous carbon-nitrogen two-dimensional nanosheet. The IPMC electrochemical actuator prepared by using the porous carbon-nitrogen two-dimensional nanosheets exhibits excellent electrochemical energy storage and electromechanical response performance, such as large specific capacitance, fast response rate, large deformation and high stability. Therefore, it has great potential applications in the field of smart materials such as insect wings, Braille displays, and bionic medical catheters. In addition, the method has a simple process, does not require complex equipment, and is easy to industrialize production.

Description

technical field [0001] The invention belongs to the technical field of novel artificial muscle drive. Specifically, it relates to a porous carbon-nitrogen two-dimensional nanosheet and a method for preparing an IPMC electrochemical driver using the porous carbon-nitrogen two-dimensional nanosheet. Background technique [0002] Electroactive Polymer (EAP) is a kind of polymer material that can be deformed by changing the internal structure of the material under electric field or current stimulation. Because of its light weight, flexibility and large actuation deformation, etc. Therefore, it has received extensive attention in intelligent robots, micro-electro-mechanical systems, human-implanted functional devices, and industrial electro-mechanical conversion systems. In the past few decades, ionic EAPs based on conductive polymers, polymer gels, and ionic polymer metal composites (IPMC) can exhibit large deformations at lower voltages and The stability exhibited in air has ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B21/082B82Y30/00B82Y40/00
Inventor 陈韦武观胡颖刘洋赵晶晶陈雪丽
Owner SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
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