A kind of znsn nanowire material and preparation method thereof for supercapacitor

A technology of supercapacitors and nanowires, applied in the manufacture of hybrid/electric double layer capacitors, electrodes of hybrid capacitors, etc., can solve the problems of low energy density and power density, achieve simple equipment, realize large-scale industrial production, and unique electrochemical performance effect

Active Publication Date: 2021-05-04
金华莱顿新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Only supercapacitors can provide very large energy in a short period of time, but the carbon materials currently used still require bulky capacitors due to their low energy density and power density, and some are even larger than shipping containers. Demand, people can only find new electrode materials to have higher power density, but also have high energy density, so as to achieve this goal

Method used

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  • A kind of znsn nanowire material and preparation method thereof for supercapacitor
  • A kind of znsn nanowire material and preparation method thereof for supercapacitor

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 1) The double-temperature zone horizontal tube furnace is used as the growth equipment; the quartz is used as the substrate, placed at the lower air flow end of the horizontal tube furnace; ZnO powder with a purity of more than 99.99% is used as the raw material, and placed at the upper air flow end of the horizontal tube furnace ;

[0024] 2) The horizontal tube furnace is evacuated until the background vacuum degree is lower than 1.5Pa, and then the horizontal tube furnace is heated. The temperature of the raw material area is 900°C, and the temperature of the substrate area is 500°C;

[0025] 3) First feed H2S through a gas pipeline, the gas flow rate is 12 sccm, and react for 5 minutes; then feed NH3, the gas flow rate is 12 sccm, and keep the H2S feed in step 2) while feeding NH3, and the NH3 gas flow rate is the same as The H2S gas flow rate in step 2) is the same, and reacted in the H2S-NH3 mixed atmosphere for 20min;

[0026] 4) After the reaction, turn off the...

Embodiment 2

[0032] 1) The double-temperature zone horizontal tube furnace is used as the growth equipment; the quartz is used as the substrate, placed at the lower air flow end of the horizontal tube furnace; ZnO powder with a purity of more than 99.99% is used as the raw material, and placed at the upper air flow end of the horizontal tube furnace ;

[0033] 2) The horizontal tube furnace is evacuated until the background vacuum degree is lower than 1.5Pa, and then the horizontal tube furnace is heated. The temperature of the raw material area is 900°C, and the temperature of the substrate area is 500°C;

[0034] 3) First feed H2S through a gas pipeline, the gas flow rate is 14 sccm, and react for 5 minutes; then feed NH3, the gas flow rate is 14 sccm, and keep the H2S feed in step 2) while feeding NH3, and the NH3 gas flow rate is the same as The H2S gas flow rate in step 2) is the same, and reacted in the H2S-NH3 mixed atmosphere for 20min;

[0035] 4) After the reaction, turn off the...

Embodiment 3

[0040] 1) The double-temperature zone horizontal tube furnace is used as the growth equipment; the quartz is used as the substrate, placed at the lower air flow end of the horizontal tube furnace; ZnO powder with a purity of more than 99.99% is used as the raw material, and placed at the upper air flow end of the horizontal tube furnace ;

[0041] 2) The horizontal tube furnace is evacuated until the background vacuum degree is lower than 1.5Pa, and then the horizontal tube furnace is heated. The temperature of the raw material area is 900°C, and the temperature of the substrate area is 500°C;

[0042] 3) First feed H2S through a gas pipeline, the gas flow rate is 16 sccm, and react for 5 minutes; then feed NH3, the gas flow rate is 16 sccm, and keep the H2S feed in step 2) while feeding NH3, and the NH3 gas flow rate is the same as The H2S gas flow rate in step 2) is the same, and reacted in the H2S-NH3 mixed atmosphere for 20min;

[0043] 4) After the reaction, turn off the...

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Abstract

The invention discloses a ZnSN nanowire material for a supercapacitor and a preparation method thereof. The ZnSN nanowire has a diameter of 10-30 nm, a length of 1.5-3 μm, and is arranged in alignment; the molar ratio of Zn, S and N elements is ( 0.51~0.54):(0.35~0.37):(0.11~0.12); ZnSN nanowire materials are prepared in a double-temperature zone horizontal tube furnace, using ZnO powder as raw material, H2S and NH3 as reaction gases, using specific process steps and Parameters, gas phase reaction to generate ZnSN nanowire material; ZnSN nanowire material is used in supercapacitor electrodes, exhibiting capacitive characteristics, specific capacitance is 2100-2300F / g, and the retention rate is greater than 93% after 10,000 cycles. The ZnSN nanowire material preparation method has low cost, is easy to operate, and can realize large-scale production.

Description

technical field [0001] The invention relates to the field of supercapacitor electrode materials, in particular to a metal compound electrode material for supercapacitors and a preparation method thereof. Background technique [0002] With the continuous consumption of fossil energy such as oil and natural gas, environmental pollution is becoming more and more serious, and clean energy such as solar energy, tidal energy, and wind energy has attracted increasing attention. For the efficient application of clean energy, in addition to energy generation devices, energy storage devices are also extremely important. In practice, for this intermittent clean energy, energy storage is the bottleneck restricting its wide application. Among energy storage devices, a supercapacitor is a new type of energy storage device with performance between traditional capacitors and secondary batteries. It has high power density, fast charge and discharge speed, wide temperature range, long cycle ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G11/30H01G11/24H01G11/86
CPCH01G11/24H01G11/30H01G11/86Y02E60/13
Inventor 丁海兵吕建国
Owner 金华莱顿新能源科技有限公司
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