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Preparation method of nickel oxide nanotube

A zinc oxide nanorod, nickel oxide technology, applied in the direction of coating, can solve the problems of long discoloration response time, unfavorable electrolyte diffusion, shortened response time, etc., to achieve orderly product morphology, improve discoloration response speed and visible light. Amplitude modulation, low cost effect

Inactive Publication Date: 2018-09-18
HEFEI UNIV OF TECH
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Problems solved by technology

The traditional dense nickel oxide film has a small specific surface area and is not conducive to the diffusion of the electrolyte, resulting in long discoloration response time, low contrast, and low coloring efficiency; due to the excellent electrochemical properties of the nanostructure, it can be prepared. Structured, vertical Nanostructured nickel oxide color-changing layer on the substrate, thereby increasing the specific surface area of ​​nickel oxide, expanding ion channels, reducing the diffusion resistance of charges or ions between the electrolyte and electrode materials, thereby improving the modulation amplitude and coloring efficiency of nickel oxide to light , to shorten the response time

Method used

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  • Preparation method of nickel oxide nanotube
  • Preparation method of nickel oxide nanotube
  • Preparation method of nickel oxide nanotube

Examples

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Embodiment 1

[0031] First, place the FTO conductive glass in acetone, ethanol, and alcohol for 15 minutes for ultrasonic cleaning, and then use 30mM zinc acetate / ethanol (Zn(Ac) 2 / C 2 h 5 OH) solution is spin-coated on the conductive glass at a speed of 500 rpm, and then placed in a muffle furnace for annealing at 400 ° C to obtain a conductive glass with a zinc oxide seed layer; place the conductive glass with a zinc oxide seed layer In 20mM urotropine (C 6 H1 2 N 4 , 99.5%) and 20mM zinc nitrate (Zn(NO 3 ) 2 ·6H 2 O, 99.5%) in the aqueous solution, hydrothermal 1-2 hour under the condition of 75-85 ℃, whole reaction is carried out in the petri dish with a lid, obtains the conductive glass that zinc oxide nanorod supports; 4g nickel sulfate hexahydrate (NiSO 4 ·6H 2 O, 99%), 0.8g potassium persulfate (K 2 S 2 o 8 ,99.5%) dissolved in 40mL deionized water (18.25MΩ·cm -3 ), place the conductive glass loaded with zinc oxide nanorods in the solution, add ammonia water (NH3·H2O, 2...

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Abstract

The invention discloses a preparation method of a nickel oxide nanotube. The preparation method comprises the following steps: preparing a zinc oxide seed layer by virtue of a spin coating method, preparing highly-ordered zinc oxide nanorod templates vertical to an FTO conductive substrate, and controlling the lengths of zinc oxide nanorods by controlling the hydrothermal reaction time; and preparing a layer of flake-shaped nickel oxide coating the zinc oxide nanorods by virtue of a chemical bath method, removing a zinc oxide template through alkaline corrosion, and finally carrying out annealing, so as to obtain the nickel oxide nanotube vertical to the FTO conductive substrate. The preparation method is low in cost and simple and easy in operation, the reaction conditions are controllable, and the prepared nickel oxide nanotube structurally has a relatively large specific surface area, is beneficial to the rapid transmission of electrolyte ions in a nickel oxide nano-strucutre and iscapable of improving the electrochromic performance of nickel oxide materials.

Description

technical field [0001] The invention belongs to the technical field of preparation of anode electrochromic materials, and relates to a preparation method of nickel oxide nanotubes which can be used as electrochromic materials. Background technique [0002] As a new type of energy-saving material, electrochromic materials have immeasurable potential in displays, smart windows, stealth materials, etc. Especially the continuous popularization of smart windows has a great effect on improving the comfort of life. Due to these characteristics of electrochromic materials, it has a huge effect on energy saving and environmental protection. Nickel oxide materials have attracted extensive attention due to their abundant resources and simple preparation methods. The traditional dense nickel oxide film has a small specific surface area and is not conducive to the diffusion of the electrolyte, resulting in long discoloration response time, low contrast, and low coloring efficiency; due ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/34C03C17/25
CPCC03C17/006C03C17/25C03C17/3417C03C2217/425C03C2217/70C03C2217/94C03C2218/111C03C2218/328
Inventor 张勇宋艳斌汤凯史英迪崔接武王岩秦永强舒霞吴玉程
Owner HEFEI UNIV OF TECH
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