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Nanotube array material with core shell heterostructure of nickel cobalt sulfide@double-metal nickel iron hydroxide and preparation method and application of nanotube array material

A technology of nickel-cobalt sulfide and nickel-iron hydroxide, which is applied in the field of nanomaterials, can solve the problems of low catalytic activity and single-function catalysis, and achieve the effects of large active surface area, low production cost and good dispersion

Active Publication Date: 2018-08-10
ANHUI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the catalytic activity of traditional catalysts for electrolysis of water is low, and most of them only have single-function catalytic effects.

Method used

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  • Nanotube array material with core shell heterostructure of nickel cobalt sulfide@double-metal nickel iron hydroxide and preparation method and application of nanotube array material
  • Nanotube array material with core shell heterostructure of nickel cobalt sulfide@double-metal nickel iron hydroxide and preparation method and application of nanotube array material
  • Nanotube array material with core shell heterostructure of nickel cobalt sulfide@double-metal nickel iron hydroxide and preparation method and application of nanotube array material

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Experimental program
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Effect test

Embodiment 1

[0037] A method for preparing nickel-cobalt sulfide@double metal nickel-iron hydroxide core-shell heterostructure nanotube array material, comprising the following steps:

[0038] S1: Put the nickel sheet with impurities on the surface into hydrochloric acid, ethanol, and double distilled water in sequence for ultrasonic cleaning for 15 minutes;

[0039] S2: Mix 40mL double-distilled water, 1mmol nickel nitrate hexahydrate, 2mmol cobalt nitrate hexahydrate and 15mmol urea evenly, then add it to a 60mL reactor, immerse the treated foamed nickel into the mixture, pour it into the reactor, and tighten the reactor Cover, react at 120°C for 6 hours, take out the reactor and cool it down to room temperature naturally, rinse it with ethanol and double distilled water successively, and dry it at room temperature to obtain a nickel cobaltate precursor loaded on nickel foam. The SEM image is as follows figure 1 As shown, it can be seen from the figure that the material is a nanowire arr...

Embodiment 2

[0048] A method for preparing nickel-cobalt sulfide@double metal nickel-iron hydroxide core-shell heterostructure nanotube array material, comprising the following steps:

[0049] S1: Put the nickel sheet with impurities on the surface into hydrochloric acid, ethanol, and double distilled water in sequence for ultrasonic cleaning for 15 minutes;

[0050] S2: Mix 40mL double-distilled water, 1mmol nickel nitrate hexahydrate, 2mmol cobalt nitrate hexahydrate and 15mmol urea evenly, then add it to a 60mL reactor, immerse the treated foamed nickel into the mixture, pour it into the reactor, and tighten the reactor Cover, react at 120°C for 6 hours, take out the reactor and let it cool down to room temperature naturally, rinse it with ethanol and double-distilled water in sequence, and dry it at room temperature to obtain a nickel cobalt oxide precursor supported on nickel foam.

[0051] S3: add 0.6g Na 2 S·9H 2 O was dissolved in 60ml of deionized water, then the nickel cobaltat...

Embodiment 3

[0054] A method for preparing nickel-cobalt sulfide@double metal nickel-iron hydroxide core-shell heterostructure nanotube array material, comprising the following steps:

[0055] S1: Put the nickel sheet with impurities on the surface into hydrochloric acid, ethanol, and double distilled water in sequence for ultrasonic cleaning for 15 minutes;

[0056] S2: Mix 40mL double-distilled water, 1mmol nickel nitrate hexahydrate, 2mmol cobalt nitrate hexahydrate and 15mmol urea evenly, then add it to a 60mL reactor, immerse the treated foamed nickel into the mixture, pour it into the reactor, and tighten the reactor Cover, react at 120°C for 6 hours, take out the reactor and let it cool down to room temperature naturally, rinse it with ethanol and double-distilled water in sequence, and dry it at room temperature to obtain a nickel cobalt oxide precursor supported on nickel foam.

[0057] S3: add 0.6g Na 2 S·9H 2 O was dissolved in 60ml of deionized water, then the nickel cobaltat...

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Abstract

The invention discloses a nanotube array material with a core shell heterostructure of nickel cobalt sulfide@double-metal nickel iron hydroxide and a preparation method and application of the nanotubearray material. The nanotube array material is formed by coating the exterior of a nickel-cobalt sulfide nanotube skeleton with a double-metal nickel iron hydroxide nano-film material. The nanotube array material with the core shell heterostructure of nickel cobalt sulfide@double-metal nickel iron hydroxide grows on foamed nickel, and can be directly used as an electrode material for water electrolysis, not only long-term stability but also a large specific surface area is achieved, so that a larger active area is provided, and fast and efficient electrolysis of water is achieved.

Description

technical field [0001] The invention belongs to the technical field of nanomaterials, and specifically relates to a nickel-cobalt sulfide@double metal nickel-iron hydroxide core-shell heterostructure nanotube array material and its preparation method and application. Background technique [0002] The ever-increasing global energy demand, coupled with the depletion of fossil fuels and associated negative environmental impacts, is driving the pursuit and utilization and intensive research of various efficient, sustainable, and low-cost energy conversion and storage technologies. Photo / electrically driven water splitting to produce hydrogen and oxygen fuels is considered to be one of the most promising strategies to realize the conversion of solar / electrical energy into chemical energy, thereby overcoming the intermittency of sunlight and realizing solar energy storage. The produced hydrogen is widely regarded as a sustainable and sufficient energy carrier capable of solving cu...

Claims

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Application Information

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IPC IPC(8): B01J27/043C25B1/04C25B11/06
CPCC25B1/04C25B11/04B01J27/043B01J35/396B01J35/33Y02E60/36
Inventor 张小俊陈静
Owner ANHUI NORMAL UNIV
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