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Preparation method of nano nickel oxide used for propane catalytic combustion reaction

A nano-nickel oxide, catalytic combustion technology, applied in combustion methods, chemical instruments and methods, combustion types, etc., can solve problems such as the destruction of the intrinsic structure of nickel oxide, the inability of the performance of nickel oxide-based composite oxides to be completely the same, and the like. Suitable for large-scale production, excellent propane combustion performance, good reproducibility

Active Publication Date: 2016-08-03
SHANGHAI NAT ENG RES CENT FORNANOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The above method often introduces a higher content of transition metal oxides, the intrinsic structure of nickel oxide is destroyed, and often due to improper control of details in the preparation process, the properties of the obtained nickel oxide-based composite oxides cannot be completely the same, while the obtained oxides Nickel-based composite oxide mainly composed of nickel oxide

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Weigh 23.2648g of nickel nitrate hexahydrate and dissolve it in a mixture of 130mL deionized water and 20mL of absolute ethanol; weigh 1.1641g of cobalt nitrate hexahydrate and dissolve it in 50mL of deionized water, add 30% H 2 o 2 Solution 0.4mL, dissolved and added to nickel nitrate solution, stirred for 4h. Weigh 8.904g of sodium carbonate and dissolve it in 50mL of deionized water, drop the sodium carbonate solution into the metal salt solution, stir for 1h and add 2mL of 30%H 2 o 2 The solution was stirred at room temperature for 18h. Suction filtration, washed three times with deionized water and ethanol respectively, dried in a blast drying oven at 60°C for 12 hours, ground and roasted in a muffle furnace at a temperature of 500°C for 4 hours, and a heating rate of 2°C / min . That is, a nanometer nickel oxide catalyst modified with a trace amount of cobalt is obtained. The catalyst was pressed into tablets and sieved (40-60 mesh), and its effect on C 3 h 8...

Embodiment 2

[0023] Weigh 23.2648g nickel nitrate hexahydrate and dissolve it in a mixture of 130mL deionized water and 20mL absolute ethanol; weigh 1.4316g manganese nitrate hexahydrate (50% by mass) and dissolve it in 50mL deionized water, add 30% H 2 o 2 Solution 0.4mL, dissolved and added to nickel nitrate solution, stirred for 4h. Weigh 8.904g of sodium carbonate and dissolve it in 50mL of deionized water, drop the sodium carbonate solution into the metal salt solution, stir for 1h and add 2mL of 30%H 2 o 2 The solution was stirred at room temperature for 18h. Suction filtration, washed three times with deionized water and ethanol respectively, dried in a blast drying oven at 60°C for 12 hours, ground and roasted in a muffle furnace at a temperature of 500°C for 4 hours, and a heating rate of 2°C / min . That is, a nano-nickel oxide catalyst modified by a trace amount of manganese is obtained. The catalyst was pressed into tablets and sieved (40-60 mesh), and its effect on C 3 h ...

Embodiment 3

[0026] Weigh 23.2648g nickel nitrate hexahydrate and dissolve it in a mixture of 130mL deionized water and 20mL absolute ethanol; weigh 1.6160g ferric nitrate nonahydrate and dissolve it in 50mL deionized water, add 30% H 2 o 2 Solution 0.4mL, dissolved and added to nickel nitrate solution, stirred for 4h. Weigh 14.84g of sodium carbonate and dissolve it in 50mL of deionized water, drop the sodium carbonate solution into the metal salt solution, stir for 1h and add 2mL of 30%H 2 o 2The solution was stirred at room temperature for 18h. Suction filtration, washed three times with deionized water and ethanol respectively, dried in a blast drying oven at 60°C for 12 hours, ground and roasted in a muffle furnace at a temperature of 500°C for 4 hours, and a heating rate of 2°C / min . The nano-nickel oxide catalyst modified by a trace amount of iron is obtained. The catalyst was pressed into tablets and sieved (40-60 mesh), and its effect on C 3 h 8 Oxidation catalytic activity...

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Abstract

The invention discloses a preparation method of nano nickel oxide used for propane catalytic combustion reaction and particularly relates to a preparation method of a microenvironment containing nano nickel oxide regulated and controlled by trace variable-valence metal. The catalyst disclosed by the invention is prepared from the following components by mol percentage: 0-95% of nickel and the trace variable-valence metal M (M is Mn, Co and Fe); and hydrogen peroxide is introduced into a variable-valence metal salt to regulate and control a metal valence of the variable-valence metal, so that the nickel oxide is subjected to microenvironment regulation and control, and the redox property and the oxidization property are improved. The preparation method disclosed by the invention is simple and raw materials are cheap and easy to obtain, so that the preparation method is suitable for large-scale and production; and a catalytic material obtained by the invention has an extremely good catalytic property on low-concentration C3H8 and the like.

Description

technical field [0001] The invention relates to the preparation and application of a nanometer metal oxide, in particular to a method for preparing a nanometer nickel oxide catalyst used in propane catalytic combustion reaction, and belongs to the field of preparation and application of metal oxides. Background technique [0002] The rapid development of industry has brought convenience to people's lives, but it has also brought serious environmental pollution problems. Along with people's concern for people's livelihood, the control and governance of environmental pollution has attracted global attention. As an air quality issue that is closely related to human health, it is even more important. The main representative air pollutants are carbon monoxide (CO), nitrogen oxides (NO x ), hydrocarbons (HC). Propane is one of the most representative hydrocarbons, and the elimination of propane is of great significance to the control of air pollution. [0003] Among the many re...

Claims

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Application Information

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IPC IPC(8): B01J23/755B01J23/889F23G7/07
CPCB01J23/755B01J23/8892F23G7/07
Inventor 何丹农袁静蔡婷赵昆峰高振源杨玲张涛金彩虹
Owner SHANGHAI NAT ENG RES CENT FORNANOTECH
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