A sliding power generation device based on reduced graphene oxide film and its preparation method and application

A technology of graphene film and power generation device, which is applied in the direction of generators, generators/motors, electrical components, etc. that convert kinetic energy into electrical energy, achieving the effects of large improvement space, simple preparation method, and good stability

Inactive Publication Date: 2017-05-10
OCEAN UNIV OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are currently no reports on sliding power generation devices based on reduced graphene oxide membranes.

Method used

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  • A sliding power generation device based on reduced graphene oxide film and its preparation method and application
  • A sliding power generation device based on reduced graphene oxide film and its preparation method and application
  • A sliding power generation device based on reduced graphene oxide film and its preparation method and application

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Embodiment 1

[0035] The preparation method of the sliding power generation device based on the reduced graphene oxide film of the present invention comprises the following steps:

[0036] (1) Measure 46ml H 2 SO 4 Place in an ice bath, weigh 2g of natural graphite powder, 1g of NaNO 3 , respectively, the natural graphite powder and NaNO 3 added to the H 2 SO 4 The reaction solution was obtained; in the case of keeping the ice bath, 6gKMnO 4 Add it gradually into the reaction solution under stirring conditions, the method of adding it gradually is to add 1.2g every minute, and the temperature of the system does not exceed 20°C;

[0037] (2) After reacting for 5 minutes, remove the ice bath condition in step (1), heat the system temperature to 35°C with constant temperature water bath heating method or plate heating method, and keep it warm for 30 minutes;

[0038] (3), then slowly add 92ml of deionized water into the reaction solution in step (2), and stir for 15 minutes;

[0039] (4...

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Abstract

The invention provides a sliding power generator based on a reductive oxidized graphene film and a preparation method and application of power generator. The preparation method comprises the following steps that natural graphite powder generates oxidized graphite under the condition of a strong oxidizing agent, the oxidized graphite prepares oxidized graphene via ultrasound, a film is formed via pumping filtration and hot pressing, and the film is reduced to prepare the reductive oxidized graphene film; and the sliding power generator is assembled by dropping seawater and NaCl brine on the surface of the reductive oxidized graphene film. The sensitivity, conductivity and adsorptivity to external simulation of the graphene are fully utilized, seawater and NaCl brine are dropped on the surface of the oxidized graphene film to generate voltage and current signals, the reductive oxidized graphene film is high in stability and conductivity, low in cost, simple in preparation method and large in improvement space, and the sliding power generator is simple in structure, high in maneuverability and excellent in performance.

Description

technical field [0001] The invention belongs to the field of new material technology and new energy technology, and specifically relates to a sliding power generation device based on a reduced graphene oxide film and its preparation method and application. Background technique [0002] Flow sensors and their devices capable of harvesting electrical energy from flowing water are very important in many application areas, such as electrical energy harvesting, characterization of electrochemical properties, and real-time medical diagnosis. These devices primarily rely on streaming potentials. This is an electrokinetic phenomenon in which a streaming potential is generated when a flowing electrolyte is driven through a slit or micropore. In 2001, scientists theorized that carbon nanotubes in a flowing liquid could generate an electric current. Since then there have been many experiments showing this phenomenon. However, there are marked discrepancies among these reported concl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02N3/00
CPCH02N3/00
Inventor 唐群委王晓鹏于良民贺本林陈海燕
Owner OCEAN UNIV OF CHINA
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