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A kind of preparation method and application of the MOF catalyst that gluconic acid enhances catalytic activity

A technology of gluconic acid and catalytic activity, applied in the fields of nanocatalysis, metal organic framework materials, and nanomaterials, can solve the problems of high cost and unreported oxygen evolution performance, and achieve high product preparation efficiency and good stability. The effect of simple process

Inactive Publication Date: 2021-04-20
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Iridium dioxide (IrO 2 ) and ruthenium dioxide (RuO 2 ) is a component with good performance in the current oxygen evolution catalyst, but the cost is relatively high. Therefore, it is an opportunity and a challenge to develop a non-precious metal oxygen evolution catalyst with high efficiency, low price and abundant earth content, and to reduce the electricity consumption of oxygen evolution
[0005] At present, as far as we know, there is no report on the oxygen evolution performance of doping gluconic acid on this basis.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024]Example 1 A method of preparing a MOF catalyst for glucoculgic acid enhanced catalytic activity

[0025]0.16 g of sodium gluconate was blended with 4.0 ml of water, and 0.05 ml of nitric acid was added to the mixed solution, and the mixture was mixed after mixing.

[0026]0.20 g of benzene trimethylene, 0.35 g nitrlate was blended with 4.0 ml N, N-dimethylformamide, and after 1 min, the green clarified solution was obtained;

[0027]The two solutions were mixed, and the ultrasonic 2 min; in this solution, the activated foam nickel Nif of 1 cm × 1 cm was the working electrode, the platinum sheet was the counter electrode, the glycine electrode is a reference electrode, and the constant potential deposition method is used. , Synthesis of nickel-amphenylene trimethylate / NIF composites obtained by synthesis of gluconate; the obtained composite, 85 ° C for 4 h, resulting in gluconic acid enhancement catalytic activity MOF catalyst;

[0028]The activated foam is sequentially sequentially subj...

Embodiment 2

[0031]Example 2 Method for preparing a MOF catalyst for enhanced catalytic activity of gluconic acid

[0032]0.22 g of sodium gluconate was blended with 5.0 ml of water, and 0.10 ml of nitric acid was added to the mixed solution, and the mixture was mixed after mixing.

[0033]0.21 g of benzene trimethylene, 0.36 g nickel nickel and 5.0 mL n, N-dimethylformamide were blended, and the green clarified solution was obtained by ultrasonic 1min.

[0034]The two solutions were mixed, ultrasonic 2.5 min; in this solution, the activated foam nickel NIf of 1 cm × 1 cm was the working electrode, the platinum sheet was the counter electrode, the glycine electrode is a reference electrode, and the constant potential deposition method is used. , Synthesis of nickel-amphenylene trimethylate / NIF composites obtained by synthesis of gluconate; the obtained composite, 85 ° C for 4 h, resulting in gluconic acid enhancement catalytic activity MOF catalyst;

[0035]The activated foamed nickel is prepared in Examp...

Embodiment 3

[0038]Example 3 Method for preparing a MOF catalyst for enhanced catalytic activity of gluconic acid

[0039]0.28 g of sodium gluconate was blended with 6.0 ml of water, and 0.15 ml of nitric acid was added to the mixed solution after stirring, and the mixture was mixed after mixing.

[0040]0.22 g of benzene trimetaric acid, 0.37 g nickel nickel and 6.0 mL n, N-dimethylformamide were blended, and after 1 min, the green clarified solution was obtained.

[0041]Mix the two solutions, ultrasonic 3 min; in this solution, the activated foam nickel Nif of 1 cm × 1 cm is the working electrode, the platinum sheet is the counter electrode, the glycine electrode is the reference electrode, and the constant potential deposition method is used. , Synthesis of nickel-amphenylene triacarc / NIF composites obtained by synthesis of gluconate; the obtained composite, 85 ° C for 4 h, and the MOF catalyst of gluconic acid reinforced catalytic activity is obtained.

[0042]The activated foamed nickel is prepared ...

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Abstract

The invention discloses a preparation method of a MOF catalyst with enhanced catalytic activity of gluconic acid and an application based on the catalyst for water electrolysis and oxygen evolution, belonging to the technical fields of nano-catalysis, nano-materials and metal-organic framework materials. The main steps are as follows: after blending the isophthalic acid solution and the nickel nitrate solution at room temperature, adding the prepared gluconic acid solution, using the mixed solution as an electrolyte to deposit on the nickel foam, and after activation, the nickel gluconate-metaphthalic acid is obtained. Nickel formate composite catalyst, that is, MOF catalyst with enhanced catalytic activity of gluconic acid. The cost of raw materials used in the preparation of the catalyst is low, the preparation process is simple, the reaction energy consumption is low, and the catalyst has industrial application prospects. The catalyst is used for efficiently catalyzing the electrolysis of water for oxygen evolution, and has good electrocatalytic activity and electrochemical stability for oxygen evolution.

Description

Technical field[0001]The present invention relates to a method of preparing a gluconic acid reinforced catalytic activity, and an application based on the catalyst electrolytic water, which belongs to the technical field of nanomocatalysis, nanomaterials, metal organic frame materials.Background technique[0002]The rapid development of modern society has caused huge demand for environmentally renewable energy hydrogen. It is an ideal source that is proposed to become mainly used in the future, which belongs to secondary energy. Today, the production of hydrogen is mainly through natural gas steam methane reform (i.e., the reaction between water and methane).2And Co2). Therefore, production of hydrogen is accompanied by a series of greenhouse effects, which neither does not regenerate and cannot perform carbon. Compared to the current application of extensive reformal hydrogen, hydrogen can be regenerated and environmentally friendly. Electrocatalytic Direct Decomposing Water Preparat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J31/22C25B11/095C25B11/054C25B1/04
CPCB01J31/2213B01J35/0033B01J2531/0213B01J2531/0241B01J2531/847C25B1/04C25B11/095Y02E60/36
Inventor 赵璐王志玲李辉
Owner UNIV OF JINAN
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