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Method for synthesizing ordered mesoporous indium oxide

A synthesis method and indium oxide technology, applied in chemical instruments and methods, gallium/indium/thallium compounds, inorganic chemistry, etc., can solve the problem of lack of connection, poor connectivity of mesoporous silicon oxide, and inability to form mesoporous structures with interconnected skeletons etc. to achieve the effects of saving energy, high degree of order, and high degree of pore filling

Inactive Publication Date: 2012-07-25
INST OF PROCESS ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the extraction treatment usually cannot completely remove the surfactant in the pores of mesoporous silica, the mesoporous silica of the extraction treatment has poor connectivity, so the oxides filled in the main pores of the mesoporous lack connection with each other, so the obtained The products are usually isolated nanowires rather than forming mesoporous structures with interconnected backbones

Method used

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  • Method for synthesizing ordered mesoporous indium oxide
  • Method for synthesizing ordered mesoporous indium oxide
  • Method for synthesizing ordered mesoporous indium oxide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Mix 8.0g of surfactant P123, 60g of water and 240g of 2M hydrochloric acid at 35°C, stir for 1-12 hours until all the surfactants are dissolved and uniformly dispersed, then add 16.72g of ethyl orthosilicate TEOS, stir for 5 Minutes later, it was transferred to a polytetrafluoroethylene bottle and left to stand in an oven at 35°C for 20 hours, then hydrothermally reacted at 130°C for 1 day, cooled naturally, filtered with suction, washed, and dried naturally at room temperature to obtain a white powder.

[0034] Surfactant P123 was removed by solvent extraction: 1.0 g of the powder sample obtained above was added to 200 ml of ethanol (containing 16 ml of 36 wt% concentrated hydrochloric acid), stirred at 70° C. for 24 h in a reflux device, filtered, washed, and dried. The obtained ordered mesoporous silica has a specific surface area of ​​478m 2 / g, pore volume 1.00cm 3 / g, the Unicom pore size is greater than 4nm.

[0035] Take 0.6g of the above-mentioned treated mes...

Embodiment 2

[0037] Mix 8.0g of surfactant P123, 60g of water and 240g of 2M hydrochloric acid at 35°C, stir for 1-12 hours until all the surfactants are dissolved and uniformly dispersed, then add 16.72g of ethyl orthosilicate TEOS, stir for 5 Minutes later, it was transferred to a polytetrafluoroethylene bottle and left to stand in an oven at 35°C for 20 hours, followed by hydrothermal reaction at 130°C for 1 day, after natural cooling, suction filtration, washing, and natural drying at room temperature to obtain a white powder. Surfactant P123 was removed by solvent extraction: 1.0 g of the powder sample obtained above was added to 200 ml of ethanol (containing 16 ml of 36 wt% concentrated hydrochloric acid), stirred at 70° C. for 24 h in a reflux device, filtered, washed, and dried. The obtained ordered mesoporous silica has a specific surface area of ​​478m 2 / g, pore volume 1.00cm 3 / g, the Unicom pore size is greater than 4nm.

[0038] Use 0.6g of the above-mentioned treated mesop...

Embodiment 3

[0040] Mix 8.0g of surfactant P123, 60g of water and 240g of 2M hydrochloric acid at 35°C, stir for 1-12 hours until the surfactant is completely dissolved and dispersed evenly, then add 16.72g of ethyl orthosilicate TEOS, stir for 5 minutes , transferred to a polytetrafluoroethylene bottle and stood in an oven at 35°C for 20 hours, followed by hydrothermal reaction at 130°C for 5 days, natural cooling, suction filtration, washing, and natural drying at room temperature to obtain a white powder. Surfactant P123 was removed by solvent extraction: 1.0 g of the powder sample obtained above was added to 200 ml of ethanol (containing 16 ml of 36 wt% concentrated hydrochloric acid), stirred at 70° C. for 24 h in a reflux device, filtered, washed, and dried. The obtained ordered mesoporous silica has a specific surface area of ​​365m 2 / g, pore volume 1.21cm 3 / g, the Unicom pore size is greater than 8nm.

[0041] Use 0.6g of the above-mentioned treated mesoporous silica as a hard ...

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Abstract

The invention relates to a method for synthesizing ordered mesoporous indium oxide. The method comprises the following steps of: pre-synthesizing mesoporous silicon oxide with relatively big hole-wall connecting holes; removing surfactant in ducts of the holes by adopting extraction treatment; and preparing the ordered mesoporous indium oxide by taking the extracted mesoporous silicon oxide as a hard template. In the method of the invention, the extraction treatment is adopted to reduce the conventional cost of the mesoporous silicon oxide preparation by using 'common' mesoporous silicon oxide and the size of the connecting holes is increased to improve the connectivity of the mesoporous silicon oxide after the extraction, so ordered mesoporous oxide materials can be prepared by using themesoporous silicon oxide as the hard template.

Description

technical field [0001] The invention belongs to the field of inorganic porous materials, and in particular relates to a method for synthesizing ordered mesoporous indium oxide by using extracted mesoporous silicon oxide as a hard template. Background technique [0002] In 1992, scientists from Mobil Corporation synthesized the M41S series of silicon-based mesoporous materials, thereby expanding the pore size range of ordered and regular porous materials from micropores to mesoporous materials; later, the SBA series of silicon-based mesoporous materials synthesized by Stucky et al. The pore size range is further improved; its highly ordered pore structure, huge specific surface area and pore volume, adjustable pore diameter and other unique physical and chemical properties make this material widely used in optoelectronic devices, separation and purification, biological materials, catalysis, new Composite materials have huge application potential, and have extremely important ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G15/00
Inventor 王丹赖小勇毛丹杜江
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI