Iron oxide nanorod array material growing on foamed titanium substrate and preparation method thereof

A nano-iron oxide and titanium foam technology, applied in nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve problems such as poor rate performance and environmental impact, and achieve higher specific volume and higher loading capacity. , the effect of simple equipment

Inactive Publication Date: 2021-03-02
WUHAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] "A Fe 2 o 3 Preparation method and application of in-situ vulcanization and carbon coating of nanorod array electrodes" (CN106848301 B) patented technology, which uses titanium sheet as the substrate, utilizes hydrothermal method, through in-situ vulcanization and coating, although Fe 2 o 3 -S@C, but the rate performance is poor, and at the same time, when carbon coating is carried out, methane is used as the carbon source, which has an impact on the environment

Method used

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  • Iron oxide nanorod array material growing on foamed titanium substrate and preparation method thereof
  • Iron oxide nanorod array material growing on foamed titanium substrate and preparation method thereof
  • Iron oxide nanorod array material growing on foamed titanium substrate and preparation method thereof

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Embodiment 1

[0047] An iron oxide nanorod array material grown on a foamed titanium substrate and a preparation method thereof. The specific steps of the preparation method described in this embodiment are:

[0048] (1) The material ratio of sodium sulfate: ferric chloride hexahydrate: deionized water is 7:7:7800, and stirred at room temperature to obtain a mixed solution.

[0049] (2) Ultrasonic cleaning of foamed titanium with detergent for 15 minutes, ultrasonic cleaning of ethanol for 25 minutes and ultrasonic cleaning of deionized water for 20 minutes, and then immersing the cleaned foamed titanium into a reactor filled with the mixed solution, Hydrothermal reaction was carried out at 170°C for 4 hours, and then cooled to room temperature naturally.

[0050] (3) The naturally cooled titanium foam was washed twice with deionized water, and dried at 60° C. for 8 hours to obtain a precursor.

[0051] (4) Put the precursor in a tube-type atmosphere furnace, raise the temperature to 430°...

Embodiment 2

[0055] An iron oxide nanorod array material grown on a foamed titanium substrate and a preparation method thereof. The specific steps of the preparation method described in this embodiment are:

[0056] (1) The material ratio of sodium sulfate: ferric chloride hexahydrate: deionized water is 7:7:7800, and stirred at room temperature to obtain a mixed solution.

[0057] (2) Ultrasonic cleaning of foamed titanium with detergent for 20 minutes, ultrasonic cleaning of ethanol for 30 minutes and ultrasonic cleaning of deionized water for 25 minutes, and then immersing the cleaned foamed titanium into a reaction kettle filled with the mixed solution, Hydrothermal reaction was carried out at 165°C for 5 hours, and then cooled to room temperature naturally.

[0058] (3) The naturally cooled titanium foam was washed three times with deionized water, and dried at 70° C. for 7 hours to obtain a precursor.

[0059] (4) Put the precursor in a tubular atmosphere furnace, raise the tempera...

Embodiment 3

[0063] An iron oxide nanorod array material grown on a foamed titanium substrate and a preparation method thereof. The specific steps of the preparation method described in this embodiment are:

[0064] (1) The material ratio of sodium sulfate: ferric chloride hexahydrate: deionized water is 7:7:7800, and stirred at room temperature to obtain a mixed solution.

[0065] (2) Ultrasonic cleaning of foamed titanium with detergent for 25 minutes, ultrasonic cleaning of ethanol for 20 minutes and ultrasonic cleaning of deionized water for 15 minutes, and then immersing the cleaned foamed titanium into a reactor filled with the mixed solution, Hydrothermal reaction was carried out at 165°C for 6h, and then cooled to room temperature naturally.

[0066] (3) The naturally cooled titanium foam was washed three times with deionized water, and dried at 80° C. for 7 hours to obtain a precursor.

[0067] (4) Place the precursor in a tubular atmosphere furnace, raise the temperature to 450...

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Abstract

The invention relates to an iron oxide nanorod array material growing on a foamed titanium substrate and a preparation method of the iron oxide nanorod array material. According to the technical scheme, the method comprises the steps of mixing sodium sulfate, ferric chloride hexahydrate and deionized water according to the mass ratio of 7: 7: 7800 and stirring at the room temperature to obtain a mixed solution; transferring the mixed solution into a high-pressure reaction kettle, then immersing foam titanium subjected to ultrasonic cleaning by using a detergent, ethanol and deionized water into the mixed solution, and carrying out heat preservation at 160-170 DEG C for 4-7 hours to obtain a precursor; and putting the precursor into a tubular atmosphere furnace, and carrying out heat preservation for 2-3 hours at 430-470 DEG C in an argon atmosphere to prepare the iron oxide nanorod array material growing on the foamed titanium substrate. The method is simple in process, environmentallyfriendly and easy for industrial production, and the prepared product is high in specific capacity, good in rate capability and excellent in cycling stability.

Description

technical field [0001] The invention belongs to the technical field of iron oxide nanorod array composite materials. In particular, it relates to an iron oxide nanorod array material grown on a foamed titanium substrate and a preparation method thereof. Background technique [0002] The environmental problems brought about by the consumption of fossil energy have accelerated extensive research on new energy sources and efficient conversion storage devices. Due to a series of advantages such as high power density, fast charging and discharging speed, long cycle life and environmental friendliness, supercapacitors have become the most promising new green energy storage devices in the fields of portable electronic devices and new energy. At the same time, the selection and preparation of electrode materials are the key points that directly affect the electrochemical performance of supercapacitors. The electrode materials currently developed and researched mainly include carbo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/86H01G11/24H01G11/26H01G11/46H01G11/30B82Y40/00B82Y30/00
CPCB82Y30/00B82Y40/00H01G11/24H01G11/26H01G11/30H01G11/46H01G11/86
Inventor 李睿智李荣聪张灵周盈科
Owner WUHAN UNIV OF SCI & TECH
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