Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for preparing 2, 5-furandicarboxylic acid by electro-catalyzing oxidation of 5-hydroxymethylfurfural and simultaneously electrolyzing water to prepare hydrogen

A technology of hydroxymethylfurfural and electrolyzed water, which is applied in the chemical industry, can solve problems such as difficult to improve energy utilization efficiency and water molecule activation, and achieve the effects of good hydrogen production ability, high selectivity and high tolerance of water decomposition

Active Publication Date: 2021-03-23
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
View PDF13 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the difficulty in activating water molecules in the liquid-phase thermocatalytic process, it is difficult to improve the energy utilization efficiency of the traditional liquid-solid phase reaction.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for preparing 2, 5-furandicarboxylic acid by electro-catalyzing oxidation of 5-hydroxymethylfurfural and simultaneously electrolyzing water to prepare hydrogen
  • Method for preparing 2, 5-furandicarboxylic acid by electro-catalyzing oxidation of 5-hydroxymethylfurfural and simultaneously electrolyzing water to prepare hydrogen
  • Method for preparing 2, 5-furandicarboxylic acid by electro-catalyzing oxidation of 5-hydroxymethylfurfural and simultaneously electrolyzing water to prepare hydrogen

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0076] The preparation method of described monolithic catalyst comprises the following steps:

[0077] S100, preparation of solution: Co(NO 3 ) 2 Mix with nitrogen and carbon compounds in a certain proportion and add water to form a solution; wherein, the Co(NO 3 ) 2 The molar ratio to nitrogen and carbon compounds is 1:1.5 to 1:5. Preferably, as an implementation manner, the nitrogen- and carbon-containing compound is one or both of urea and tetrasodium edetate.

[0078] In the present application, there is no particular limitation on the concentration of the prepared solution. In order to prepare a monolithic nitrogen-doped carbon-wrapped cobalt tetraoxide nanowire catalyst with excellent performance, enhance its catalytic stability, and prolong its service life, preferably, Co(NO 3 ) 2 The molar ratio with water is 1:600~1:1200.

[0079] S200, hydrothermal reaction: put the solution obtained in step S100 in a reaction kettle, add metal foam, carbon foam or carbon fib...

Embodiment 1

[0091] (1) Add 0.584g Co(NO 3 ) 2 ·6H 2 O, 0.6g urea, 36mL deionized water, stir well at room temperature. Among them, Co(NO 3 ) 2 The molar ratio to urea is 1:5, Co(NO 3 ) 2 The molar ratio with water is 1:1000.

[0092] (2) Transfer the solution prepared in step (1) to a 100mL reaction kettle, add foamed nickel carrier, make it immersed in the solution, put it in an oven and react at 120°C for 8h, take it out and wash it twice with water and ethanol in turn , placed in a beaker, and dried in an oven at 60° C. for 12 hours to obtain a precursor.

[0093] (3) Place the precursor obtained in step (2) in the quartz boat of the tube furnace, seal it and pass high-purity nitrogen gas as the whole process protective gas, wherein the flow rate of nitrogen gas is 150mL / min; The temperature was raised to 350°C at a speed of 1 min, and after holding for 0.5h, it was cooled to room temperature at a speed of 3°C / min. The obtained product was a monolithic nitrogen-doped carbon-wra...

Embodiment 2

[0095] (1) Add 0.584g Co(NO 3 ) 2 ·6H2 O, 0.2g urea, 36mL deionized water, stir well at room temperature. Among them, Co(NO 3 ) 2 The molar ratio to urea is 1:1.67, Co(NO 3 ) 2 The molar ratio with water is 1:1000.

[0096] (2) with embodiment 1

[0097] (3) Same as Example 1, the obtained sample is designated as sample 2.

[0098] Compared with Example 1, the quality of urea in the raw materials used in this example has changed, and the rest of the preparation conditions have not changed. As the quality of urea decreases, the nitrogen-doped carbon coating of the catalyst finally obtained becomes thinner, The amount of nitrogen doping is reduced.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
lengthaaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for preparing 2, 5-furandicarboxylic acid by electro-catalyzing oxidation of 5-hydroxymethylfurfural. An electrolytic tank is adopted for catalytic oxidation; the electrolytic tank is a three-electrode electrolytic tank or a two-electrode electrolytic tank; the adopted anode is an integral electrode; the monolithic electrode comprises a carrier and a catalytic active substance loaded on the carrier; and the catalytic active substance comprises nitrogen-doped carbon nanowires wrapping cobaltosic oxide particles. The method is high in activity and selectivity, and the anode catalyst is high in tolerance to 5-hydroxymethylfurfural.

Description

technical field [0001] The application relates to a method for preparing 2,5-furandicarboxylic acid by electrocatalyzing the oxidation of 5-hydroxymethylfurfural while electrolyzing water to produce hydrogen, which belongs to the field of chemical industry. Background technique [0002] The increase in global energy consumption and the control of pollutant emissions in various countries have made the demand for clean energy more and more concerned. The development and utilization of hydrogen energy and biomass are considered to be feasible ways to address the above needs. [0003] As one of the twelve biomass platform compounds recognized by the U.S. Department of Energy, 2,5-furandicarboxylic acid (FDCA) is aromatic and has structural similarity to terephthalic acid (TPA). Taking polycondensation with ethylene glycol as an example, bio-based polyethylene furandicarboxylate (PEF) derived from FDCA is superior to polyethylene terephthalate in terms of gas barrier properties,...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C25B3/23C25B3/05C25B3/07C25B1/04C25B11/091C25B11/061C25B11/031C25B11/065C25B9/17
CPCC25B1/04C25B9/00B01J27/24B01J35/33C25B11/091C25B3/23C25B11/065C25B3/05C25B11/061C25B3/07Y02E60/36C07D307/68C25B9/17C25B11/031C25B11/054
Inventor 谌春林周振强张建
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com