Porous carbon and nitrogen two-dimensional nano-sheet and method for preparing IPMC electrochemical actuator

A two-dimensional nano-porous carbon technology, applied in the direction of nitrogen and non-metallic compounds, nanotechnology, nanotechnology, etc., can solve the problems of low electrochemical activity of low-dimensional nano-carbon materials and the inability to further manufacture IPMC devices, etc., to achieve excellent The effects of electrochemical energy storage, excellent electromechanical response performance, and fast response rate

Active Publication Date: 2015-06-03
SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
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  • Abstract
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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 nano-sheet and method for preparing IPMC electrochemical actuator
  • Porous carbon and nitrogen two-dimensional nano-sheet and method for preparing IPMC electrochemical actuator
  • Porous carbon and nitrogen two-dimensional nano-sheet and method for preparing IPMC electrochemical actuator

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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 generated. 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-dimensio...

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Abstract

The invention provides a porous carbon and nitrogen two-dimensional nano-sheet and a method for preparing an IPMC electrochemical actuator by using the porous carbon and nitrogen two-dimensional nano-sheet. The porous carbon and nitrogen two-dimensional nano-sheet is prepared with the method which comprises the following steps: uniformly grinding carbon and nitrogen precursors and glucose, and thus obtaining a mixture; heating the mixture to 450-600 DEG C, and thus obtaining a compound of graphite-phase carbon and nitrogen and two-dimensional nano-carbon sheets; under the protection of gas, heating the compound to 700-1000 DEG C, and thus obtaining the porous carbon and nitrogen two-dimensional nano-sheet. The IPMC electrochemical actuator prepared from the porous carbon and nitrogen two-dimensional nano-sheet shows excellent electrochemical energy storage and electric mechanical response performance, for example, large specific capacitance, high response rate, large deformation and high stability, therefore having great potential applications in the field of smart materials such as insect wings, braille display and bionics of medical catheters. In addition, the method is simple in process, does not need complex equipment, and is easy for industrial 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 Applications(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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