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Cobalt niobium oxygen cluster and preparation method and application thereof

An oxygen cluster and crystalline technology, applied in the field of synthesis of polyniobate, can solve the problem of easy formation of precipitation, and achieve the effects of cheap materials, simple operation and few synthesis steps.

Pending Publication Date: 2022-08-05
NANTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] This application is aimed at the deficiencies in the prior art, has solved [Nb 6 o 19 ] 8- It can only exist in a strong alkaline environment, and transition metals tend to form technical problems such as precipitation in this environment. A cobalt-niobium oxygen cluster and its preparation method and application are provided. It has a photocatalytic oxygen-generating catalyst. =9 in the buffer solution exhibited better photocatalytic oxygen generation performance

Method used

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  • Cobalt niobium oxygen cluster and preparation method and application thereof
  • Cobalt niobium oxygen cluster and preparation method and application thereof
  • Cobalt niobium oxygen cluster and preparation method and application thereof

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Embodiment 1

[0026] A cobalt-oxygen cluster, the cobalt-oxygen cluster is organic-inorganic hybrid cobalt-cobalt oxygen cluster crystal material. 3 [NB 6 O 19 {Co (EN)} 2 CO 0.5 (EN)] · 14H 2 O.

[0027] A method of preparing a cobalt oxygen cluster, the steps are:

[0028] Step 1: Take 0.458g K 7 HNB 6 O 19 · 13H 2 O (0.33mmol) dissolved in 8ml of water;

[0029] Step 2: Take another 0.848g sodium arsenic na 3 ASO 4 , 0.352gnaCl, 0.246G Six -hydrophilic cobalt chloride COCL 3 · 6H 2 O and 1.4ml ethyleine to add K to K 7 HNB 6 O 19 · 13H 2 O in the water solution;

[0030] Step 3: Stir for 2.5 hours, transfer to polytetrafluoroethylene reactor, put on the shell;

[0031] Step 4: 4 days at 150 ° C, then cooled to room temperature to get light red color block crystals, the crystal is NA 3 [NB 6 O 19 {Co (EN)} 2 CO 0.5 (EN)] · 14H 2 O.

Embodiment 2

[0033] A cobalt-oxygen cluster in this embodiment, the cobalt-cobalt oxygen cluster is organic-inorganic hybrid cobalt-cobalt-oxygen cluster crystal material, which is chemical for cobalt-cobalt oxygen cluster crystal materials 3 [NB 6 O 19 {Co (EN)} 2 CO 0.5 (EN)] · 14H 2 O.

[0034] A method of preparing a cobalt oxygen cluster, the steps are:

[0035] Step 1: Take 0.458g K 7 HNB 6 O 19 · 13H 2 O (0.33mmol) dissolved in 8ml of water;

[0036] Step 2: Take another 0.352G NaCl, 0.246G Six water -mortar cobalt chloride COCL 3 · 6H 2 O and 1.4ml ethyleine to add K to K 7 HNB 6 O 19 · 13H 2 O in the water solution;

[0037] Step 3: Stir for 2.5 hours, transfer to polytetrafluoroethylene reactor, put on the shell;

[0038] Step 4: 4 days at 150 ° C, then cooled to room temperature to get light red color block crystals, the crystal is NA 3 [NB 6 O 19 {Co (EN)} 2 CO 0.5 (EN)] · 14H 2 O.

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Abstract

The invention discloses a cobalt niobium oxygen cluster and a preparation method and application thereof, the cobalt niobium oxygen cluster is an organic-inorganic hybrid cobalt niobium oxygen cluster crystalline material, and the chemical formula of the cobalt niobium oxygen cluster crystalline material is Na3 [Nb6O19 {Co (en)} 2Co0.5 (en)]. 14H2O, the preparation method comprises the following steps: taking 0.458 g of K7HNb6O19. 13H2O (0.33 mmol), and dissolving the K7HNb6O19. 13H2O in 8 mL of water; in addition, 0.848 g of sodium arsenate Na3AsO4, 0.352 g of NaCl, 0.246 g of cobalt trichloride hexahydrate CoCl3. 6H2O and 1.4 mL of ethidene diamine are taken and added into the K7HNb6O19. 13H2O aqueous solution; stirring for 2.5 hours, transferring into a polytetrafluoroethylene reaction kettle, and sleeving with a shell; reacting at 150 DEG C for 4 days, and then cooling to room temperature to obtain a light red blocky crystal, namely Na3 [Nb6O19 {Co (en)} 2Co0.5 (en)]. 14H2O.

Description

Technical field [0001] The present invention is a synthetic technology field of polychine oxide, which involves a cobalt oxygen cluster and its preparation methods and applications. Background technique [0002] Energy problem is one of the problems facing human beings. The use of solar light water to prepare oxygen is one of the promising ways. Polybioxide acid has an electronic attribute similar to semiconductor oxides, so it has become an excellent photocatalytic candidate candidate candidate By. [0003] The participation of transition metals helps to adjust the structure of the material. Therefore, the synthesis of the oxygen cluster built by the transition metal participation is the research hotspot of the new photocatalyst. [0004] However, there are fewer soluble front drives for synthetic oxide. At present, it is mainly [NB 6 O 19 ] 8- The pussy ions can only exist in a strong alkaline environment. Extraction metals are often prone to formation in this environment. Ther...

Claims

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Application Information

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IPC IPC(8): B01J31/22C01B13/02C07F19/00C08G83/00
CPCB01J31/1805B01J31/1691C01B13/0207C07F15/025C08G83/008B01J35/39Y02E60/36
Inventor 梁志结程海兵贾维妮
Owner NANTONG UNIVERSITY
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