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

Nickel oxide supported sulfur phosphorus doped graphene composite electrocatalyst and preparation method thereof

A graphene composite and electrocatalyst technology, applied in the direction of catalyst activation/preparation, physical/chemical process catalysts, chemical instruments and methods, etc., can solve the problem of expensive Pt-based electrode materials, few active sites of electrode materials, nanomaterials, poor electrode Conductivity and other issues, to achieve the effect of low material price, high production efficiency, and not easy to fall off and separate

Active Publication Date: 2021-11-02
JIANGSU SOPO GRP +2
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems and defects that occur in the existing methods and technologies, such as: the expensive and other poor conductivity of Pt-based electrode materials, the few active sites of electrode materials and the agglomeration of nanomaterials, etc. The present invention provides A preparation method of nickel oxide-supported sulfur-phosphorus-doped graphene composite electrocatalyst with simple synthesis process and low cost

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 oxide supported sulfur phosphorus doped graphene composite electrocatalyst and preparation method thereof
  • Nickel oxide supported sulfur phosphorus doped graphene composite electrocatalyst and preparation method thereof
  • Nickel oxide supported sulfur phosphorus doped graphene composite electrocatalyst and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The preparation method of nickel oxide loaded sulfur phosphorus doped graphene composite electrocatalyst comprises the following steps:

[0035] Step (1): 40 mg of graphene oxide, 2 mL of phosphoric acid, and 2 mL of sulfuric acid were uniformly mixed in 40 mL of aqueous solution, and ultrasonically dispersed for 3 hours to obtain a uniformly mixed mixture A;

[0036] Step (2): Transfer the mixed solution A to a polytetrafluoroethylene-lined hydrothermal kettle for hydrothermal reaction. The temperature of the hydrothermal reaction is 160° C., and the hydrothermal reaction is carried out for 12 hours to obtain a suspension, which is filtered, Wash with water and ethanol respectively, and dry in a vacuum oven at 60°C to obtain sulfur-phosphorus-doped graphene;

[0037] Step (3): Dissolve 0.0005mol of nickel chloride hexahydrate in 30mL of ethanol, stir fully to dissolve completely, and slowly add 2mL of ammonia solution under continuous stirring to obtain light blue solu...

Embodiment 2

[0045] The preparation method of nickel oxide loaded sulfur phosphorus doped graphene composite electrocatalyst comprises the following steps:

[0046] (1) Mix 40 mg of graphene oxide, 3 mL of phosphoric acid, and 4 mL of sulfuric acid in 40 mL of aqueous solution, and ultrasonically disperse for 3 hours to obtain a uniformly mixed mixture A;

[0047] (2) Transfer the mixed liquid A to a polytetrafluoroethylene-lined hydrothermal kettle for hydrothermal reaction. The temperature of the hydrothermal reaction is 185°C, and the hydrothermal reaction takes 13 hours to obtain a suspension, which is filtered, water and ethanol Washing separately and drying in a vacuum oven at 60°C to obtain sulfur-phosphorus-doped graphene;

[0048] (3) Dissolve 0.0006mol of nickel chloride hexahydrate in 40mL of ethanol, stir fully to dissolve it completely, and slowly add 6mL of ammonia solution under continuous stirring to obtain light blue solution B;

[0049] (4) Add sulfur and phosphorus dope...

Embodiment 3

[0056] The preparation method of nickel oxide loaded sulfur phosphorus doped graphene composite electrocatalyst comprises the following steps:

[0057] (1) Mix 40mg of graphene oxide, 1mL of phosphoric acid, and 1mL of sulfuric acid in 40mL of aqueous solution, and ultrasonically disperse for 3 hours to obtain a uniformly mixed mixed solution A;

[0058] (2) Transfer the mixed solution A to a polytetrafluoroethylene-lined hydrothermal kettle for hydrothermal reaction. The temperature of the hydrothermal reaction is 145° C., and the hydrothermal reaction is 8 hours to obtain a suspension, which is filtered, water and Washing with ethanol and drying in a vacuum oven at 60°C to obtain sulfur-phosphorus-doped graphene;

[0059] (3) Dissolve 0.0008mol of nickel chloride hexahydrate in 50mL of ethanol, stir fully to dissolve it completely, and slowly add 8mL of ammonia solution under continuous stirring to obtain light blue solution B;

[0060] (4) Add sulfur and phosphorus doped g...

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 belongs to the category of electrocatalytic hydrogen production catalytic material preparation, in particular to a preparation method of nickel oxide-supported sulfur-phosphorus-doped graphene composite electrocatalyst. Graphene oxide, phosphoric acid and sulfuric acid are uniformly mixed to form an aqueous solution, which is transferred to a hydrothermal kettle Hydrothermal reaction is carried out in the process to obtain sulfur and phosphorus doped graphene; after the sulfur and phosphorus doped graphene, nickel chloride hexahydrate and ethanol are mixed uniformly, hydrothermal is performed on it, and the obtained solution is subjected to suction filtration , washing, and drying to obtain a nickel oxide-supported sulfur-phosphorus-doped graphene composite electrocatalyst. The reaction conditions of the invention are simple, the operation is convenient, and the process flow is short; the prepared nickel oxide nanosheets have good dispersibility, suitable size and uniformity, and have excellent hydrogen evolution performance as an electrocatalytic hydrogen evolution electrode catalyst.

Description

technical field [0001] The invention belongs to the field of preparation of electrocatalytic hydrogen evolution electrode catalyst materials, in particular to a nickel oxide-loaded sulfur-phosphorus-doped graphene composite electrocatalyst and a preparation method thereof. Background technique [0002] With the increasing energy crisis and CO 2 Induced global warming, building renewable energy systems has become one of the major scientific challenges. Due to the limited supply of fossil fuels and growing environmental concerns, clean and renewable energy sources have attracted increasing attention. Among them, electrocatalysis plays a key role in clean energy conversion, providing a practical way for future sustainable development. Hydrogen is considered as the most promising new energy because it has all the requirements to replace the old energy. Hydrogen can be produced from electrolytes through the hydrogen evolution reaction (HER) using intermittent renewable energy ...

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): B01J27/185B01J37/10B82Y30/00B82Y40/00C25B1/04C25B11/091
CPCY02E60/36
Inventor 朱桂生章明美邵守言谢吉民黄春霞陈勇叶兴平
Owner JIANGSU SOPO GRP
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