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

Dual ion desalting electrode and preparation method thereof

A dual ion and desalination technology, applied in battery electrodes, chemical instruments and methods, circuits, etc., can solve the problems of complex pore structure, low effective surface area, and poor desalination efficiency, and achieve high effective surface area, high desalination rate, and desalination capacity high effect

Active Publication Date: 2022-02-11
NINGXIA UNIVERSITY
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the symmetric capacitive deionization method using carbon-based electrodes has disadvantages such as complex pore structure, low effective surface area, double layer overlap effect, poor desalination efficiency, and low charge efficiency.

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
  • Dual ion desalting electrode and preparation method thereof
  • Dual ion desalting electrode and preparation method thereof
  • Dual ion desalting electrode and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The MXene@NTO composite material is used as the negative electrode material, and the NiCo-Ox@graphene composite material is used as the positive electrode material.

[0033] Preparation of MXene@NTO composite material: According to the amount of adding at least 10 ml of NaOH solution per 0.1 g of MXene, MXene was added to NaOH solution with a concentration of 2 mol / L, hydrothermally reacted at 300 °C for 3 h, and left to cool naturally to room temperature; after the obtained reaction product was filtered, washed with deionized water at least twice, and vacuum-dried at 60°C for at least 10 hours to obtain the MXene@NTO composite material.

[0034] Preparation of NiCo-Ox@graphene composite material: Weigh nickel chloride hexahydrate, cobalt chloride hexahydrate and hexamethylenetetramine according to the molar ratio of 10:5:32 and dissolve them in 30 ml deionized water, stir them magnetically 15 min; add graphene oxide to the mixture, the amount of graphene oxide added pe...

Embodiment 2

[0037] The MXene@NTO composite material is used as the negative electrode material, and the NiCo-Ox@graphene composite material is used as the positive electrode material.

[0038] Preparation of MXene@NTO composite material: According to the amount of adding at least 10 ml of NaOH solution per 0.1 g of MXene, MXene was added to NaOH solution with a concentration of 4 mol / L, hydrothermally reacted at 260 °C for 6 h, and left to cool naturally to normal temperature; after the obtained reaction product was filtered, washed with deionized water at least twice, and vacuum-dried at 50 °C for at least 10 h to obtain the MXene@NTO composite material.

[0039] Preparation of NiCo-Ox@graphene composite material: Weigh nickel chloride hexahydrate, cobalt chloride hexahydrate and hexamethylenetetramine according to the molar ratio of 10:5:32 and dissolve them in 30 ml deionized water, stir them magnetically 15 min; add graphene oxide into the mixture, the amount of graphene oxide added p...

Embodiment 3

[0042] The MXene@NTO composite material is used as the negative electrode material, and the NiCo-Ox@graphene composite material is used as the positive electrode material.

[0043] Preparation of MXene@NTO composite material: According to the amount of adding at least 10 ml of NaOH solution per 0.1 g of MXene, MXene was added to NaOH solution with a concentration of 6 mol / L, hydrothermally reacted at 220 °C for 5 h, and stood for natural cooling to room temperature; after the obtained reaction product was filtered, washed with deionized water at least twice, and vacuum-dried at 30-50 °C for at least 10 h to obtain the MXene@NTO composite material.

[0044] Preparation of NiCo-Ox@graphene composite material: Weigh nickel chloride hexahydrate, cobalt chloride hexahydrate and hexamethylenetetramine according to the molar ratio of 10:5:32 and dissolve them in 30 ml deionized water, stir them magnetically 15 min; add graphene oxide into the mixture, the amount of graphene oxide add...

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 dual-ion desalination electrode and a preparation method thereof. The MXene@NTO composite material is used as the negative electrode material, and the NiCo‑Ox@graphene composite material or bamboo shoot leaf carbonized material is used as the positive electrode material. The component of the MXene@NTO is Ti 3 C 2 @Na 4 Ti 5 o 12 &Na 4 Ti 9 o 20 , which is prepared by the following steps: according to the amount of adding at least 10ml of NaOH solution per 0.1g of MXene, adding MXene to NaOH solution with a concentration of 1-10mol / L, hydrothermal reaction at 100-300°C for 1-6h, static Cool naturally to room temperature; filter the resulting reaction product, wash it with deionized water at least twice, and vacuum-dry it at 30-80°C for at least 10 hours to obtain the MXene@NTO composite material. The desalination electrode prepared by the invention has the desalination performance of regular pore structure, high effective surface area, high desalination capacity, high desalination rate and low energy consumption, and can be applied to the preparation of dual-ion capacitor desalination electrodes, assembled into dual-ion desalination batteries and applied to water Environmental treatment, fast and efficient removal of Na in water environment + , Cl ‑ , SO 4 2‑ , F ‑ , providing a new route for low-energy, high-performance desalination.

Description

technical field [0001] The invention belongs to the technical field of dual-ion capacitor desalination, and in particular relates to a preparation method of a dual-ion desalination electrode. Background technique [0002] With the rapid growth of population and the continuous expansion of industrialization process, the shortage of fresh water has become one of the biggest threats to human beings. Desalination of seawater and brackish water is a viable option for addressing freshwater supply. [0003] Seawater desalination is the use of seawater desalination to produce fresh water. Seawater desalination methods currently used include seawater freezing method, electrodialysis method, distillation method, reverse osmosis method, and ammonium carbonate ion exchange method. Currently, reverse osmosis membrane method and distillation method are the most popular in the market mainstream. Among them, the distillation method has high energy consumption, and the reverse osmosis memb...

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 Patents(China)
IPC IPC(8): H01M4/485C02F101/10C02F101/12C02F101/14C02F103/08
CPCC02F1/4604C02F1/4691C02F2103/08C02F2101/10C02F2101/101C02F2101/12C02F2101/14
Inventor 罗民杨顺周瑞娟郭晓旭
Owner NINGXIA UNIVERSITY
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