Nickel-nitrogen co-doped porous carbon material loaded with cobalt nanoparticles, and preparation method and application thereof

A technology of porous carbon materials and co-doping, which is applied in the direction of nanotechnology, nanotechnology, chemical instruments and methods, etc., can solve the problems of high equipment requirements, high overpotential, harmful environment, etc., and achieve strong proton transport ability, diffusion The effect of low resistance and high conductivity

Active Publication Date: 2020-01-24
哈尔滨凯美斯科技有限公司
View PDF5 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to solve the existing method for preparing porous carbon with cumbersome operation steps, time-consuming, high overpotential, high requirements on equipment, harmful to the environment, limiting the preparation of porous carbon materials, not suitable for large-scale production and unable to To meet new application requirements in the fields of energy, catalysis and biology, and provide a nickel-nitrogen co-doped porous carbon material loaded with cobalt nanoparticles, its preparation method and application

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
  • Nickel-nitrogen co-doped porous carbon material loaded with cobalt nanoparticles, and preparation method and application thereof
  • Nickel-nitrogen co-doped porous carbon material loaded with cobalt nanoparticles, and preparation method and application thereof
  • Nickel-nitrogen co-doped porous carbon material loaded with cobalt nanoparticles, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0051] Embodiment 1: In this embodiment, a nickel-nitrogen co-doped porous carbon material loaded with cobalt nanoparticles is grown in situ on nickel foam, and the cobalt particles are embedded on the nitrogen-nickel co-doped porous carbon material. The content of cobalt is 5-30%, the content of nickel is 0.1%-5%, and the content of nitrogen is 3%-8%. The cobalt particles are ellipsoidal crystals with a size of 5nm-30nm.

specific Embodiment approach 2

[0052] Specific embodiment two: This embodiment is a method for preparing a nickel-nitrogen co-doped porous carbon material loaded with cobalt nanoparticles, which is completed according to the following steps:

[0053] 1. Pretreatment of nickel foam:

[0054] Sequentially use dilute hydrochloric acid, deionized water and absolute ethanol as cleaning agents to ultrasonically clean the foamed nickel, and then vacuum-dry to obtain pretreated foamed nickel;

[0055] 2. In situ growth of cobalt-based zeolite imidazolate framework material nanosheet array on nickel foam:

[0056] 1. Dissolving cobalt nitrate hexahydrate into deionized water to obtain an aqueous solution of cobalt nitrate hexahydrate;

[0057] The concentration of the cobalt nitrate hexahydrate aqueous solution described in step 1. is 0.05mol / L~0.15mol / L;

[0058] ②, dissolving dimethylimidazole in deionized water to obtain an aqueous solution of dimethylimidazole;

[0059] The concentration of the dimethylimidaz...

specific Embodiment approach 3

[0078] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: the mass fraction of dilute hydrochloric acid described in step one is 1% to 20%, the power of ultrasonic cleaning is 100W to 180W, and the ultrasonic cleaning The drying time is 10min-30min; the vacuum drying temperature in step 1 is 50°C-90°C, and the vacuum drying time is 4h-10h. Other steps are the same as those in Embodiment 1 or 2.

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
sizeaaaaaaaaaa
particle diameteraaaaaaaaaa
electric potential / voltageaaaaaaaaaa
Login to view more

Abstract

The invention discloses a nickel-nitrogen co-doped porous carbon material loaded with cobalt nanoparticles, and a preparation method and application thereof, and relates to a preparation method of a porous carbon material. The invention aims to solve the problems that conventional methods for preparing porous carbon are tedious in operation steps, time-consuming, high in overpotential, high in equipment requirements and harmful to the environment, limit the preparation of the porous carbon material, are not suitable for large-scale production and cannot meet the new application requirements inthe fields of energy, catalysis, biology and the like. The nickel-nitrogen co-doped porous carbon material loaded with cobalt nanoparticles grows on foamed nickel in situ. The preparation method comprises the following steps: 1, pretreating the foamed nickel; 2, growing a cobalt-based zeolite imidazate framework structure material nanosheet array on the foamed nickel in situ; and 3, carrying outcalcining. The c nickel-nitrogen co-doped porous carbon material loaded with cobalt nanoparticles is used as a catalyst for hydrogen production through water electrolysis in the field of energy. The nickel-nitrogen co-doped porous carbon material loaded with cobalt nanoparticles can be obtained by using the method.

Description

technical field [0001] The invention relates to a preparation method of a porous carbon material. Background technique [0002] Carbon material is an ancient and young material that is closely related to human life. In recent years, porous carbon materials have become a rapidly developed new material system, and their applications in various fields have attracted extensive attention, especially in energy-related fields. Porous carbon materials have the characteristics of low cost, light weight, non-toxicity, surface chemical inertness, high temperature resistance, acid and alkali resistance, high mechanical stability, good electrical conductivity, adsorption, and large specific surface area and pore volume. 2 Adsorption, hydrogen storage, catalysis, and fuel cells and electrochemical double-layer capacitors have shown great application potential and have attracted attention from all walks of life. [0003] The preparation methods of porous carbon materials are various, 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
Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/24B01J35/10B01J37/34B01J37/06B01J37/08B82Y30/00B82Y40/00C25B11/03C25B11/06C25B1/04
CPCB01J27/24B01J35/1004B01J35/0033B01J37/343B01J37/06B01J37/082B82Y30/00B82Y40/00C25B1/04C25B11/031C25B11/091Y02E60/36
Inventor 武立立张喜田张慧杰于海玲邵智韬
Owner 哈尔滨凯美斯科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap