Method for preparing metal oxide multistage structure by MOF-derived bimetallic oxide template

A bimetallic oxide and oxide technology, applied in the field of nanomaterials, can solve the problems of complex process, difficult industrialization, dependence on surfactants, etc., and achieve the effects of simple preparation process, uniform component distribution, and uniform size

Active Publication Date: 2019-01-15
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to overcome the problems that the traditional metal oxide multi-level structure preparation process relies on surfactants, the process is complicated, and it is not easy to industrialize, the present invention provides a method for preparing a metal oxide multi-level structure using MOF-derived double metal oxide templates. The preparation process is simple, mild and universal, no surfactant is used, and it is suitable for large-scale industrial production

Method used

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  • Method for preparing metal oxide multistage structure by MOF-derived bimetallic oxide template
  • Method for preparing metal oxide multistage structure by MOF-derived bimetallic oxide template
  • Method for preparing metal oxide multistage structure by MOF-derived bimetallic oxide template

Examples

Experimental program
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Effect test

Embodiment 1

[0030] (1) Take a clean beaker, add 25ml deionized water, weigh 0.5g MoO 3 Pour it into deionized water, weigh 0.475g of 2-methylimidazole, pour it into deionized water, and ultrasonically dissolve it. Take another clean beaker, add 25ml deionized water, weigh 0.26gMn(NO 3 ) 2 4H 2 O was poured into deionized water, ultrasonically dissolved, and manganese nitrate solution was added to MoO 3 in solution. Heat the oil bath to 120°C, stir for 12 hours, and cool down to room temperature naturally after the reaction stops. Centrifugal washing with deionized water was repeated three times. And vacuum dried at 60°C for 12h. Prepare Mn / Mo-MOF;

[0031] (2) Take an appropriate amount of Mn / Mo-MOF and place it in a boat-shaped crucible, place the crucible in the middle of a quartz tube, and oxidize it in a tube furnace at a high temperature of 500 °C for 3 h in an air atmosphere, with a heating rate of 10 °C / min. Prepared MnMoO 4 - MOF crystal powder;

[0032] (3) Take 10mg Mn...

Embodiment 2

[0042] (1) Take a clean beaker, add 25ml deionized water, weigh 0.5g MoO 3 Pour it into deionized water, weigh 0.475g of 2-methylimidazole, pour it into deionized water, and ultrasonically dissolve it. Take another clean beaker, add 25ml deionized water, weigh 0.26gMn(NO 3 ) 2 4H 2 O was poured into deionized water, ultrasonically dissolved, and manganese nitrate solution was added to MoO 3 in solution. Heat the oil bath to 80°C, stir for 180 hours, and cool down to room temperature naturally after the reaction stops. Centrifugal washing with deionized water was repeated three times. And vacuum dried at 60°C for 12h. Prepare Mn / Mo-MOF;

[0043] (2) Take an appropriate amount of Mn / Mo-MOF and place it in a boat-shaped crucible, place the crucible in the middle of a quartz tube, and oxidize it in a tube furnace at 300 °C for 24 hours in an air atmosphere, with a heating rate of 1 °C / min. Prepared MnMoO 4 -MOF crystal powder;

[0044] (3) Take 10mg MnMoO 4 -MOF is plac...

Embodiment 3

[0046] (1) Take a clean beaker, add 25ml deionized water, weigh 0.5g MoO 3 Pour it into deionized water, weigh 0.475g of 2-methylimidazole, pour it into deionized water, and ultrasonically dissolve it. Take another clean beaker, add 25ml deionized water, weigh 0.26gMn(NO 3 ) 2 4H 2 O was poured into deionized water, ultrasonically dissolved, and manganese nitrate solution was added to MoO 3 in solution. Heat the oil bath to 180°C, stir for 12 hours, and cool down to room temperature naturally after the reaction stops. Centrifugal washing with deionized water was repeated three times. And vacuum dried at 60°C for 12h. Prepare Mn / Mo-MOF;

[0047] (2) Take an appropriate amount of Mn / Mo-MOF and place it in a boat-shaped crucible, place the crucible in the middle of a quartz tube, and oxidize it in a tube furnace at 900 °C for 1 h in an air atmosphere, with a heating rate of 20 °C / min. Prepared MnMoO 4 - MOF crystal powder;

[0048] (3) Take 10mg MnMoO 4 -MOF is placed ...

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Abstract

The invention relates to the technical field of nanomaterials, and in particular, relates to a method for preparing a metal oxide multistage structure by an MOF-derived bimetallic oxide template; theMOF-derived bimetallic oxide template is treated by an alkali to obtain the metal oxide multistage structure; M is set as a metal in the metal oxide multistage structure, the MOF-derived bimetallic oxide template is MMoO4-MOF-derived bimetallic oxide, and the metal oxide multistage structure is MxOy. The preparation process is simple, mild and universal, has no special requirements for equipment,does not use surfactants, and can be industrialized and produced in large scale. The metal oxide multi-stage structure prepared by the method is uniform in size, stable in structure and uniform in component distribution.

Description

technical field [0001] The invention relates to the technical field of nanometer materials, in particular to a method for preparing a metal oxide multilevel structure by using a MOF derived double metal oxide template. Background technique [0002] Hierarchical nanomaterials have attracted extensive research attention due to their excellent physical and chemical properties. Due to the high surface area, high surface-to-volume ratio, and surface functional groups provided by the nanoscale basic unit, it can provide ideal mechanical and chemical properties for the overall structure of the material. It provides materials scientists with strict organizational principles to form structures from molecular to macroscopic scales, and multi-level materials composed at any level can produce functional materials. [0003] Micro-nano multi-level structure metal oxides have unique physical and chemical properties, and have broad application prospects in many fields such as energy, envir...

Claims

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Application Information

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IPC IPC(8): C01B13/14C01G45/02C01G9/02C01F7/02B82Y40/00
CPCB82Y40/00C01B13/14C01F7/02C01G9/02C01G45/02C01P2002/72C01P2004/03C01P2004/04C01P2004/24
Inventor 曹澥宏刘文贤施文慧尹瑞连
Owner ZHEJIANG UNIV OF TECH
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