Birnessite type manganese oxide catalyst preparation method and application

A technology of manganese oxide and birnessite is applied in the field of preparation of birnessite-type K2Mn4O8 manganese oxide catalyst material, which can solve the problems of great harm to human health and environmental pollution of soot particles, and achieves low cost and easy scale. Chemical production, the effect of simple preparation process

Inactive Publication Date: 2019-07-23
SHENYANG NORMAL UNIV
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Problems solved by technology

However, diesel engines emit a large amount of soot particles, causing serious pollution to the environment
At the same time, charcoal smoke parti

Method used

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  • Birnessite type manganese oxide catalyst preparation method and application
  • Birnessite type manganese oxide catalyst preparation method and application
  • Birnessite type manganese oxide catalyst preparation method and application

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Embodiment Construction

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0018] Specific implementation 1

[0019] K at different calcination temperatures 2 mn 4 o 8 Catalyst preparation

[0020] Weigh quantitative potassium permanganate 0.1-5g and glucose 0.5-10g according to the stoichiometric ratio, place them in a beaker and put them in 10-50mL of water to dissolve completely, then mix them on a stirrer and stir for 1 hour -4h. The stirred solution is dried in an oven at 60-80°C for 12-24h, and the dried sample is placed in a m...

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Abstract

The invention relates to a preparation method of a birnessite type manganese oxide catalyst material and application thereof in charcoal smoke particle catalytic combustion. According to the birnessite type manganese oxide catalyst preparation method disclosed by the invention, the material is a manganese oxide catalyst material with a birnessite type structure, a manganese oxide material is K2Mn4O8, and the manganese oxide catalyst is a catalyst material with the molar ratio of K to Mn to O as 2 to 4 to 8. According to the manganese oxide catalyst, potassium permanganate and glucose which arelow in cost are utilized as raw materials; by means of a simple preparation method of using the glucose as a reducing agent, the birnessite type K2Mn4O8 manganese oxide catalyst with higher oxidationreduction ability is further obtained. The preparation method disclosed by the invention avoids special equipment and severe conditions, and the prepared birnessite type manganese oxide catalyst hasthe advantages of simple preparation technology, strong practicability and easiness in achieving large-scale production.

Description

technical field [0001] The invention belongs to the technical field of preparation of catalyst materials, in particular to a birnessite-type K 2 mn 4 o 8 Preparation method and application of manganese oxide catalyst material. Background technique [0002] Compared with gasoline engines, diesel engines have significant advantages such as higher economy, lower emissions and better durability, so diesel engines have become ideal for automobiles and ships. However, diesel engines emit a large amount of soot particles, causing serious pollution to the environment. At the same time, charcoal smoke particles are the carriers of strong carcinogens, benzopyrene and nitro-condensed aromatic hydrocarbons, which are extremely harmful to human health. Therefore, controlling the emission of soot and particulate matter from diesel engine exhaust is an important task for the catalytic purification of diesel vehicle exhaust, and it has also become one of the key directions of environmen...

Claims

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Application Information

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IPC IPC(8): B01J23/34F01N3/035
CPCB01J23/34F01N3/035
Inventor 于学华赵震于迪陈茂重周振田范晓强王瑞丹史建军王斓懿
Owner SHENYANG NORMAL UNIV
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