Chromium-cerium-zirconium-aluminum solid solution material as well as preparation method and application thereof

A cerium-zirconium-aluminum, solid solution technology, applied in the direction of separation methods, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of unsatisfactory catalytic performance of non-precious metal catalysts, and solve the problem of difficult to improve degradation performance and good catalytic activity , increasing the effect of oxygen vacancies

Pending Publication Date: 2022-07-29
GREE ELECTRIC APPLIANCES INC OF ZHUHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Therefore, the purpose of the present invention is to solve the problem of unsatisfactory catalytic performance of existing non-noble metal catalysts, to provide a chromium-cerium-zirconium-aluminum solid solution material with better catalytic performance of formaldehyde and its preparation method and application

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  • Chromium-cerium-zirconium-aluminum solid solution material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A chromium-cerium-zirconium-aluminum solid solution material, the specific preparation process of which is as follows:

[0030] (1) Obtaining the reaction bottom solution: Weigh 1 g of P123 and dissolve it in 20 mL of absolute ethanol at room temperature, stir magnetically at 1000 rpm, slowly add 1.5 mL of 67% nitric acid, and stir for 30 min.

[0031] (2) 3.8 g of aluminum nitrate was added to the reaction bottom liquid, and after stirring for 30 minutes, cerium acetate, zirconium chloride, and chromium chloride were added in sequence, and the reaction initial liquid was obtained by continuing to stir for 6 hours at room temperature. Wherein, the addition amount of the cerium precursor is 3wt% of the mass of the aluminum precursor, the addition amount of the zirconium precursor is 3wt% of the mass of the aluminum precursor, and the addition amount of the chromium precursor is 5wt% of the mass of the aluminum precursor.

[0032] (3) The initial reaction solution was tra...

Embodiment 2

[0035] A chromium-cerium-zirconium-aluminum solid solution material, the specific preparation process of which is as follows:

[0036] (1) Acquisition of reaction bottom liquid: Weigh 0.6g of P123 and dissolve it in 20mL of absolute ethanol at room temperature, stir magnetically at 1000rpm, slowly add 1.4mL of 67% nitric acid, and stir for 30min.

[0037] (2) 2 g of aluminum isopropoxide was added to the above reaction bottom liquid, and after stirring for 30 minutes, cerium chloride, zirconium nitrate, and chromium nitrate were added in sequence, and the reaction initial liquid was obtained by continuing to stir at room temperature for 6 hours. Wherein, the addition amount of cerium precursor is 3wt% of the mass of aluminum precursor, the addition amount of zirconium precursor is 1wt% of the mass of aluminum precursor, and the addition amount of chromium precursor is 5wt% of the mass of aluminum precursor.

[0038] (3) The initial reaction solution was transferred to a petri ...

Embodiment 3

[0041] A chromium-cerium-zirconium-aluminum solid solution material, the specific preparation process of which is as follows:

[0042] (1) Obtaining the reaction bottom solution: Weigh 1.2 g of P123 and dissolve it in 20 mL of absolute ethanol at room temperature, stir magnetically at 1000 rpm, slowly add 1.6 mL of 67% nitric acid, and stir for 30 min.

[0043] (2) 3.4 g of aluminum sulfate was added to the above reaction bottom liquid, and after stirring for 30 minutes, cerium nitrate, zirconium chloride and chromium nitrate were added in sequence, and the initial reaction liquid was obtained by stirring continuously for 6 hours at room temperature. Among them, the addition amount of cerium precursor is 3wt% of the mass of aluminum precursor, the addition amount of zirconium precursor is 3wt% of the mass of aluminum precursor, and the addition amount of chromium precursor is 9wt% of the mass of aluminum precursor.

[0044] (3) The initial reaction solution was transferred to ...

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Abstract

The invention discloses a chromium-cerium-zirconium-aluminum solid solution material and a preparation method and application thereof.The chromium-cerium-zirconium-aluminum solid solution material comprises a chromium precursor, a cerium precursor, a zirconium precursor and an aluminum precursor, the chromium precursor accounts for 1-3 wt% of the mass of the aluminum precursor, the cerium precursor accounts for 1-3 wt% of the mass of the aluminum precursor, the zirconium precursor accounts for 1-3 wt% of the mass of the aluminum precursor, and the zirconium precursor accounts for 1-3 wt% of the mass of the aluminum precursor. The mass of the zirconium precursor is 5-10wt% of the mass of the aluminum precursor. The problem that the catalytic performance of an existing non-noble metal catalyst is not ideal can be solved, and the catalyst has the effect that the catalytic performance of formaldehyde is very excellent.

Description

technical field [0001] The invention relates to the field of catalysts, in particular to a chromium-cerium-zirconium-aluminum solid solution material and a preparation method and application thereof. Background technique [0002] Formaldehyde has been included in the control list of VOCs by the World Health Organization (WHO) and China's national environmental protection department, and is one of the most concerned indoor gaseous pollutants. Due to its electrophile properties, it can react with macromolecules such as human DNA, RNA, and proteins to form reversible adducts or irreversible cross-linked structures, thereby harming human cells or organs. Exposure to formaldehyde may stimulate the respiratory mucosa of the human body in the short term, and may induce cancer and neonatal deformities in the long term. [0003] At present, the main ways to eliminate formaldehyde in indoor air are adsorption and oxidation. The adsorption technology mainly uses the rich pores of act...

Claims

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Application Information

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IPC IPC(8): B01J23/26B01D53/86B01D53/72
CPCB01J23/26B01J23/002B01D53/8668B01J2523/00B01D2257/708B01D2258/06B01J2523/31B01J2523/3712B01J2523/48B01J2523/67Y02A50/20
Inventor 伍晨迪胡露毛建平
Owner GREE ELECTRIC APPLIANCES INC OF ZHUHAI
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