Preparation method of ZnSnO3 nano material with high gas sensitivity

A technology capable of zinc metastannate and nanomaterials, applied in nanotechnology, chemical instruments and methods, tin compounds, etc., can solve problems such as not meeting expected requirements, and achieve uniform morphology, mild reaction conditions, and low energy consumption. Effect

Inactive Publication Date: 2013-12-25
三亚哈尔滨工程大学南海创新发展基地
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The current research is far from meeting people's expectations for it, and further in-depth research is still needed

Method used

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  • Preparation method of ZnSnO3 nano material with high gas sensitivity
  • Preparation method of ZnSnO3 nano material with high gas sensitivity
  • Preparation method of ZnSnO3 nano material with high gas sensitivity

Examples

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Effect test

Embodiment 1

[0028] Step 1: preparing zinc oxide. 1 × 1 cubic centimeter of cleaned zinc flakes and 30 milliliters (1.5 grams per liter) of sodium dioctyl sulfosuccinate solution are put into a 50 milliliter polytetrafluoroethylene autoclave, and 100 After heating for 2 hours at 100°C, the reacted zinc flakes were taken out, and rinsed with absolute ethanol and distilled water successively;

[0029] Step 2: Put the zinc sheet obtained in the first step, 0.75 gram of urea, 0.25 gram of potassium stannate and 30 milliliters of hydroalcoholic solution (the volume of dehydrated alcohol is 38%) into 50 milliliters of polytetrafluoroethylene autoclaves ;

[0030] Step 3: Put the autoclave into an electric heating constant temperature blast drying oven and heat it at 120 degrees Celsius for 0.5 hours;

[0031] Step 4: Collect the zinc flakes and precipitates obtained from the reaction, rinse them with absolute ethanol and distilled water in turn, and dry them in an electric constant temperature...

Embodiment 2

[0033] Step 1: preparing zinc oxide. 1 × 1 cubic centimeter of cleaned zinc flakes and 30 milliliters (1.5 grams per liter) of sodium dioctyl sulfosuccinate solution are put into a 50 milliliter polytetrafluoroethylene autoclave, and 100 After heating for 2 hours at 100°C, the reacted zinc flakes were taken out, and rinsed with absolute ethanol and distilled water successively;

[0034] Step 2: Put the zinc sheet obtained in the first step, 0.75 gram of urea, 0.25 gram of potassium stannate and 30 milliliters of hydroalcoholic solution (the volume of dehydrated alcohol is 38%) into 50 milliliters of polytetrafluoroethylene autoclaves ;

[0035] Step 3: Put the autoclave into an electric constant temperature blast drying oven and heat it at 120 degrees Celsius for 3 hours;

[0036] Step 4: Collect the zinc flakes and precipitates obtained from the reaction, rinse them with absolute ethanol and distilled water in turn, and dry them in an electric constant temperature blast dry...

Embodiment 3

[0038] Step 1: preparing zinc oxide. 1 × 1 cubic centimeter of cleaned zinc flakes and 30 milliliters (1.5 grams per liter) of sodium dioctyl sulfosuccinate solution are put into a 50 milliliter polytetrafluoroethylene autoclave, and 100 After heating for 2 hours at 100°C, the reacted zinc flakes were taken out, and rinsed with absolute ethanol and distilled water successively;

[0039] Step 2: Put the zinc sheet obtained in the first step, 0.75 gram of urea, 0.25 gram of potassium stannate and 30 milliliters of hydroalcoholic solution (the volume of dehydrated alcohol is 38%) into 50 milliliters of polytetrafluoroethylene autoclaves ;

[0040] Step 3: Put the autoclave into an electric heating constant temperature blast drying oven and heat it at 120 degrees Celsius for 10 hours;

[0041] Step 4: Collect the zinc flakes and precipitates obtained from the reaction, rinse them with absolute ethanol and distilled water in turn, and dry them in an electric constant temperature ...

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Abstract

The invention provides a preparation method of a ZnSnO3 nano material with high gas sensitivity. The preparation method comprises the following steps: putting a 1*1cm<2> zinc plate into an autoclave containing 30mL of dioctyl sodium sulfosuccinate solution of which the concentration is 1.5g/L, putting the autoclave into an electric heating constant-temperature air dry oven, heating for 2 hours at 100 DEG C, taking out the zinc plate after reaction, and rinsing the zinc plate by using absolute ethyl alcohol and distilled water sequentially; putting the zinc plate into an autoclave containing 0.75g of urea, 0.15-0.35g of potassium stannate and 30mL of ethanol solution; putting the autoclave into the electric heating constant-temperature air dry oven, and heating for 0.5-10 hours at 80-170 DEG C; collecting the zinc plate and a deposit obtained through reaction, rinsing by using absolute ethyl alcohol and distilled water sequentially, and drying in the electric heating constant-temperature air dry oven for 10 hours at 60 DEG C to obtain a final product. The preparation method provided by the invention is simple in operation, mild in reaction condition and low in energy consumption, and the obtained product is uniform in shape.

Description

technical field [0001] The invention relates to a method for preparing a sensing material, in particular to a method for preparing a zinc metastannate nanometer material with high gas sensitivity. Background technique [0002] Today, with the enhancement of human environmental awareness and safety awareness, it is more and more urgent to realize the detection of various flammable, explosive, toxic and harmful gases. Therefore, the research on various gas-sensitive materials has attracted great attention. interest. In order to achieve high sensitivity, rapid response recovery, high selectivity and other properties of the gas sensor, it is necessary to discover and explore new gas sensor materials. Since the advent of the gas sensor in 1962, great progress has been made in materials, technology and theoretical research, and the application fields and types of components have also expanded rapidly. The basis of the gas sensor is the gas sensor material, and the gas sensor mat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G19/00B82Y40/00
Inventor 高鹏王莹王龙强鲍迪
Owner 三亚哈尔滨工程大学南海创新发展基地
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