Preparation method of electrochromic intelligent molybdenum trioxide-tungsten oxide core-shell nano- array energy storage electrode

A molybdenum trioxide and nano-array technology, applied in coating and other directions, can solve the problems of easy agglomeration, poor electrochemical stability and easy disordered accumulation of nano-materials, and achieve good stability, uniform color, and simple and safe preparation process. Effect

Active Publication Date: 2020-04-10
HARBIN UNIV OF COMMERCE
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  • Claims
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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that nanomaterials with both capacitive and electrochromic properties will increase the surface energy and cause nanomaterials to easily agglomerate and pile up disorderly, resulting in low tap density and electrochemical stability. To solve the problem of poor performance, a method for preparing an electrochromic smart molybdenum trioxide@tungsten oxide core-shell nanoarray energy storage electrode is provided

Method used

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  • Preparation method of electrochromic intelligent molybdenum trioxide-tungsten oxide core-shell nano- array energy storage electrode
  • Preparation method of electrochromic intelligent molybdenum trioxide-tungsten oxide core-shell nano- array energy storage electrode
  • Preparation method of electrochromic intelligent molybdenum trioxide-tungsten oxide core-shell nano- array energy storage electrode

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specific Embodiment approach 1

[0031] Specific implementation mode 1: This implementation mode is a method for preparing an electrochromic intelligent molybdenum trioxide@tungsten oxide core-shell nano-array energy storage electrode, which is completed according to the following steps:

[0032] 1. Cleaning of transparent conductive substrate:

[0033] First, the transparent conductive substrate is ultrasonically cleaned in deionized water, acetone and dilute hydrochloric acid in sequence, then the cleaned transparent conductive substrate is soaked in hydrogen peroxide, and finally the transparent conductive substrate is taken out and dried naturally at room temperature to obtain a cleaned transparent conductive substrate ;

[0034] 2. Preparation of Molybdenum Trioxide Nanoarrays:

[0035] ①. First, dissolve the sodium molybdate solid powder into ultrapure water, then add nitric acid dropwise, and then ultrasonically disperse to obtain a precursor mixed solution of molybdenum trioxide nanoarray;

[0036] ...

specific Embodiment approach 2

[0049] Embodiment 2: This embodiment differs from Embodiment 1 in that: the transparent conductive substrate described in step 1 is ITO or FTO. Other steps are the same as in the first embodiment.

specific Embodiment approach 3

[0050] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: in step one, the time for ultrasonic cleaning of the transparent conductive substrate in deionized water is 0.5h, and the time for ultrasonic cleaning in acetone is 1h. The ultrasonic cleaning time in dilute hydrochloric acid is 0.5 h; the ultrasonic cleaning power of the transparent conductive substrate in deionized water, acetone and dilute hydrochloric acid is 50W-300W. Other steps are the same as those in Embodiment 1 or 2.

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Abstract

The invention discloses a preparation method of an electrochromic intelligent molybdenum trioxide-tungsten oxide core-shell nano-array energy storage electrode, and relates to a preparation method ofa core-shell nano-array energy storage electrode. The invention aims to solve the problems of low tap density and poor electrochemical stability caused by extremely easy agglomeration and easy disordered accumulation of the nano material due to increased surface energy caused by nanocrystallization of the existing nano material with capacitance and electrochromic properties. The method comprises the following steps: 1, cleaning a transparent conductive substrate; 2, preparing a molybdenum trioxide nano array; and 3, preparing a core-shell molybdenum trioxide-tungsten oxide nano array materialto obtain the electrochromic intelligent molybdenum trioxide-tungsten oxide core-shell nano- array energy storage electrode. The electrochromic intelligent molybdenum trioxide-tungsten oxide core-shell nano -array energy storage electrode can be obtained.

Description

technical field [0001] The invention relates to a preparation method of a core-shell nano-array energy storage electrode. Background technique [0002] Since Professor Ullrich Steiner of the University of Cambridge first proposed the combination of capacitance and electrochromic research in 2012, the research on energy storage visualization and intelligence of ordinary supercapacitors has attracted close attention from academia, industry and the military. Miniaturized, miniaturized and integrated portable flexible wearable devices are regarded as one of the most promising new energy storage devices. In the future, it can be applied in electrochromic smart windows, electronic books, sensing, communication, aerospace and other fields, which has important practical significance for further expanding multiple intelligent and industrial applications. In recent years, metal oxides (W x o y , molybdenum trioxide) has both capacitive and electrochromic properties. my country has ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/34
CPCC03C17/3417C03C2217/219C03C2217/231C03C2217/241C03C2218/111C03C2218/31
Inventor 王晶
Owner HARBIN UNIV OF COMMERCE
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