Check patentability & draft patents in minutes with Patsnap Eureka AI!

Plug-in capsule cathode and extensible efficient H2O2 synthesis reactor device

A H2O2, plug-in technology, which is applied in the field of plug-in capsule cathodes and scalable high-efficiency synthesis H2O2 reactor devices, can solve the problems of small reactor volume, limited concentration adjustment, and poor scalability, and achieve an adjustable range Large, easy-to-operate, and expandable effects

Active Publication Date: 2020-11-24
TIANJIN UNIV
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the vast majority of H 2 o 2 In situ synthesis is carried out on a laboratory scale, the reactor volume is small, the yield is low, the scalability is not strong, and the reaction to H 2 o 2 Concentration adjustment is limited

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
  • Plug-in capsule cathode and extensible efficient H2O2 synthesis reactor device
  • Plug-in capsule cathode and extensible efficient H2O2 synthesis reactor device
  • Plug-in capsule cathode and extensible efficient H2O2 synthesis reactor device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The device adopts a plug-in capsule cathode, which is composed of a diffusion layer 1, a catalytic layer 3 and a steel mesh 2 used as a current collector. Catalyst layer 3 is made of graphite, carbon black and PTFE emulsion, stirred until paste and rolled to one side of steel mesh 2; diffusion layer 1 is made of carbon black and PTFE emulsion with a mass ratio of 4:9, rolled To the other side of the stencil 2, a sheet-shaped cathode with a total thickness of 1 mm is finally formed. Cut the sheet-like cathode into a suitable size (Π·D*h) and roll it into a cylinder with the diffusion layer 1 inside and the catalyst layer 3 outside. To prevent water leakage, the bottom of the capsule cathode is sealed with a head.

Embodiment 2

[0027] The device adopts four pairs of cathode and anode to be arranged alternately. The cathode of the plug-in capsule is 3cm in diameter and 5cm in height. The anode is made of titanium / iridium dioxide composite metal plate (size 3cm*5cm). The net volume of the electrode chamber is about 580ml. The cathode surface area / reactor volume (A / V) is 0.32cm 2 / ml.

[0028] Inject 580 mL of 0.05 M Na into the chamber 2 SO 4 Electrolyte, connect the titanium / iridium dioxide composite metal plate to the positive pole of the DC power supply, and the cathode to the negative pole of the DC power supply, turn on the power switch, adjust the current to 2.82A, run for 20 minutes, and detect H with titanium potassium oxalate spectrophotometry 2 o 2 Concentration, H in the electrode compartment 2 o 2 The concentration is 792.2 mg / L, and the current efficiency is 77%.

[0029] Inject 580 mL of 0.05 M Na into the chamber 2 SO 4 Electrolyte, connect the titanium / iridium dioxide composite...

Embodiment 3

[0032] The cathode and anode in the reactor are arranged alternately in an orderly manner, and can be expanded according to specific needs. By adjusting the electrode size, the distance between the cathode and anode, the number of electrodes and their arrangement, the ratio of the cathode area to the solution volume can be optimized to synthesize hydrogen peroxide with different concentrations.

[0033]The device adopts four pairs of cathode and anode to be arranged alternately. The plug-in capsule cathode has a diameter of 5cm and a height of 5cm. The size of the anode plate is 5cm*5cm. The cathode surface area / reactor volume (A / V) is 0.53cm 2 / ml.

[0034] The device adopts four pairs of cathode and anode to be arranged alternately. The plug-in capsule cathode has a diameter of 3cm and a height of 10cm. The size of the anode plate is 3cm*10cm. The cathode surface area / reactor volume (A / V) is 0.32cm 2 / ml.

[0035] The device adopts four pairs of cathode and anode to be ar...

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

No PUM Login to View More

Abstract

The invention discloses a plug-in capsule cathode and an extensible efficient H2O2 synthesis reactor device. The plug-in capsule cathode is adopted, the structure is simple, disassemble and assemble are convenient, and the expansibility of the device is high. The plug-in capsule cathode is a cylindrical air diffusion cathode made of carbon black-graphite-PTFE and is fixed through a clamping groove, the inner side of a capsule cathode cylinder is in direct contact with air, and the outer side of the capsule cathode cylinder is in contact with an electrolyte. Anode plates with anodes made of noble metal, metal alloys or metal composite metal oxides are vertically inserted into an anode tank. The anode plates are correspondingly connected to the positive pole of a direct-current power supply,and the plug-in capsule cathodes are correspondingly connected to the negative poles of the direct-current power supply. Four pairs of cathodes and anodes are arranged in order, the cathodes are plug-in capsule cathodes, the anodes are titanium / iridium dioxide composite metal plates, and the H2O2 concentration in an electrode chamber is 1151.3 mg / L after the device operates for 20 min under the condition that the current is 3.76 A.

Description

technical field [0001] The field of the present invention is the field of electrochemical synthesis, in particular to a plug-in capsule cathode and scalable and efficient synthesis of H 2 o 2 Reactor setup. Background technique [0002] Hydrogen peroxide (H 2 o 2 ) is a highly efficient and green strong oxidant, which is widely used in various fields such as papermaking, textile, chemical synthesis, military, electronics, food, medicine, cosmetics, environmental protection and metallurgy. As of 2018, the global consumption of hydrogen peroxide is about 6.5 million tons, and this value has been growing rapidly since then, with the domestic market share exceeding 50%. [0003] Anthraquinone oxidation (AO) is currently used to produce H 2 o 2 The common method, so far, the H produced by the AO method 2 o 2 Accounting for 95% and 99% of global and domestic production, respectively. However, this method has large energy input, complicated steps, many side reactions, and ...

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
IPC IPC(8): C25B1/30C25B11/02
CPCC25B1/30C25B11/02
Inventor 李楠李欣萍
Owner TIANJIN UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com