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organic frame supports ceo 2 Preparation method and application of /cuo electrocatalytic material

An electrocatalytic material, organic framework technology, applied in the direction of organic compound/hydride/coordination complex catalyst, metal/metal oxide/metal hydroxide catalyst, chemical instruments and methods, etc., to achieve suitable for large-scale production, Good water splitting performance and high repeatability

Active Publication Date: 2022-08-02
东北大学秦皇岛分校
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, it is still challenging to rationally select organic ligands and metal ions and control the reaction conditions to assemble the expected structure (Li Yajuan. Synthesis of coordination polymers based on asymmetric ligand 3,4-pyridinedicarboxylic acid, Structure and performance research [D]. Hebei Normal University, 2008)

Method used

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  • organic frame supports ceo <sub>2</sub> Preparation method and application of /cuo electrocatalytic material
  • organic frame supports ceo <sub>2</sub> Preparation method and application of /cuo electrocatalytic material
  • organic frame supports ceo <sub>2</sub> Preparation method and application of /cuo electrocatalytic material

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Experimental program
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Embodiment 1

[0031] A metal-organic framework supports CeO 2 The preparation method of / CuO composite electrocatalytic material for total water splitting, the specific steps are as follows:

[0032] Step 1. Dissolve 1 mmol of copper acetate in 10 mmol of deionized water, and stir magnetically at 700 r / min for 20 min to prepare solution A.

[0033] Step 2. Dissolve 1 mmol of cerium acetate in 10 mmol of deionized water, and stir magnetically at 700 r / min for 20 min to prepare solution B.

[0034] Step 3. Weigh 2mmol of triethylamine and add it to 5mmol of ethanol solution. After it is completely dissolved, mix it with solution B, ultrasonically treat it for 10min, add 5mmol of 3,4-pyridinedicarboxylic acid, and ultrasonically treat it for 10min to prepare. solution C.

[0035] Step 4. Using ITO (conductive glass) (1cm×1cm) as the working electrode, Pt electrode as the counter electrode, and saturated calomel electrode (SCE) as the reference electrode, the original CuO nanosheet array was ...

Embodiment 2

[0039] A metal-organic framework supports CeO 2The preparation method of / CuO composite electrocatalytic material for total water splitting, the specific steps are as follows:

[0040] Step 1. Dissolve 1 mmol of copper nitrate in 5 mmol of deionized water, and stir magnetically at 800 r / min for 20 min to prepare solution A.

[0041] Step 2. Dissolve 1 mmol of cerium nitrate in 5 mmol of deionized water, and stir with a magnetic force of 800 r / min for 20 min to prepare solution B.

[0042] Step 3. Weigh 3mmol of ethylenediamine and add it to 10mmol of methanol solution, after it is completely dissolved, mix it with solution B, ultrasonically treat for 10min, add 6mmol of 2,6-pyridinedicarboxylic acid, ultrasonically treat for 10min, Prepare solution C.

[0043] Step 4. Using ITO (conductive glass) (1cm×1cm) as the working electrode, Pt electrode as the counter electrode, and saturated calomel electrode (SCE) as the reference electrode, the original CuO nanosheet array was pre...

Embodiment 3

[0047] A metal-organic framework supports CeO 2 The preparation method of / CuO composite electrocatalytic material for total water splitting, the specific steps are as follows:

[0048] Step 1. Dissolve 1 mmol of cupric chloride in 8 mmol of deionized water, and stir magnetically at 500 r / min for 20 min to prepare solution A.

[0049] Step 2. Dissolve 1 mmol of cerium chloride in 8 mmol of deionized water, and stir with a magnetic force of 500 r / min for 20 min to prepare solution B.

[0050] Step 3. Weigh 2.5mmol of dodecylamine and add it to 10mmol of propanol solution. After it is completely dissolved, mix it with solution B, ultrasonically treat it for 10min, add 8mmol of 3,5-pyridinedicarboxylic acid, and ultrasonically treat it for 10min. , to prepare solution C.

[0051] Step 4. Using ITO (conductive glass) (1cm×1cm) as the working electrode, Pt electrode as the counter electrode, and saturated calomel electrode (SCE) as the reference electrode, the original CuO nanosh...

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Abstract

The invention belongs to the field of electrocatalytic total water splitting, and in particular relates to a metal organic framework supporting CeO 2 / CuO electrocatalytic material preparation method and application. The present invention adopts the coordination method to prepare CeO 2 / CuO electrocatalyst, the obtained electrocatalyst powder has high purity, good catalytic performance, high repeatability, and is easy to synthesize on a large scale. CeO 2 The / CuO composite electrocatalyst material exhibits excellent catalytic performance when applied to the hydrogen evolution and oxygen evolution reaction, achieving 10 mA cm with overpotentials of 258 mV and 463 mV, respectively. ‑2 The current density is a potential electrocatalytic total water splitting catalyst.

Description

technical field [0001] The invention belongs to the field of electrocatalytic total water splitting, and in particular relates to an organic framework supporting CeO 2 / CuO electrocatalytic material preparation method and application. Background technique [0002] The design and preparation of metal-ligand compounds have attracted more and more attention, and ligands are mainly responsible for absorbing and transferring energy. Metal-ligand compounds have important applications in gas physical adsorption, ion exchange and photocatalysis. At present, coordination chemistry is not only the mainstream discipline of inorganic chemistry, but also more and more closely related to other disciplines such as analytical chemistry, materials chemistry, polymer chemistry, organic chemistry, biochemistry, physical chemistry, etc. The interpenetration of the fusion has become the intersection of many disciplines, and is accompanied by its own novelty and uniqueness. Therefore, more and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J31/22B01J23/83B01J35/02C25B1/04C25B11/054C25B11/057C25B11/077B01J35/00
CPCB01J31/2243B01J23/72B01J23/10B01J23/002C25B1/04B01J2531/16C25B11/095B01J35/33Y02E60/36
Inventor 刘宣文郭瑞张圣琦温辉于涛
Owner 东北大学秦皇岛分校
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