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

Molybdenum disulfide, cobalt-modified molybdenum disulfide, pd-loaded nanosheets and their synthesis methods and applications

A technology of molybdenum disulfide and synthesis method, which is applied in the direction of molybdenum sulfide, etc.

Active Publication Date: 2021-07-06
NANJING XIAOZHUANG UNIV
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a molybdenum disulfide compound with a better structure by improving the synthesis method, so as to provide a better basic structure for cobalt modification and later loading of Pd, so as to be able to Replacing the expensive material of Pt, it becomes a promising new and efficient hydrogen evolution reaction catalyst

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
  • Molybdenum disulfide, cobalt-modified molybdenum disulfide, pd-loaded nanosheets and their synthesis methods and applications
  • Molybdenum disulfide, cobalt-modified molybdenum disulfide, pd-loaded nanosheets and their synthesis methods and applications
  • Molybdenum disulfide, cobalt-modified molybdenum disulfide, pd-loaded nanosheets and their synthesis methods and applications

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] At room temperature, weigh 0.1210g (0.5mmol) Na 2 MoO 4 .2H 2 O, 0.2284g (3mmol) CS (NH 2 ) 2 powder, and add all the raw materials together into a dry reaction kettle with a capacity of 50mL, and then use a pipette to measure 16mL double-distilled water and 8mL propionic acid into the reaction kettle, and magnetically stir for 10min to obtain a solution. Tighten the reaction kettle and transfer it to an oven, gradually raise the temperature to 180°C, and keep the temperature for 4 hours until the reaction ends. After the reactor is naturally cooled to room temperature, add 0.1455g (0.5mmol) Co(NO 3 ).6H 2 O, magnetically stirred for 30 minutes to obtain a solution, tightened the reaction kettle and transferred it to an oven, gradually raised the temperature to 180° C., and kept the temperature for 4 hours until the reaction was completed. After the reaction kettle was naturally cooled to room temperature, n-heptane and absolute ethanol were added to disperse, the...

Embodiment 2

[0053] MoS 2 、Co-MoS 2 、Co-MoS 2 The electrochemical experiment of loading Pd was carried out on Chenhua CHI660E electrochemical workstation, using a standard three-electrode test system, the corresponding working electrode was the glassy carbon electrode modified by the sample obtained in this example, and the counter electrode was a graphite rod electrode. The reference electrode was silver / silver chloride (Ag / AgCl) (0.1989V vs RHE). All potentials in this example are relative to RHE. All electrochemical tests were performed at 25 °C. In each experiment, all modified electrodes were at N 2 Saturated 0.5mol / L H 2 SO 4 tested in the solution. Before the electrochemical experiment, 10 μL of catalyst dispersion solution (2 mg / mL) was dropped on the glassy carbon electrode, dried, and then 5 μL of 1% naphthol solution was added dropwise to cover the surface of the catalyst, and dried for later use. Test results such as Figure 9 As shown, MoS 2 After the nanocrystals 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

PropertyMeasurementUnit
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention belongs to the field of material synthesis, specifically relates to the field of research and synthesis of nanometer materials, and more specifically relates to molybdenum disulfide, cobalt-modified molybdenum disulfide, Pd-loaded nanosheets and their synthesis methods and applications. MoS disclosed by the present invention 2 , Co‑MoS 2 and Co-MoS 2 The supported Pd nanosheets are all ultrathin two-dimensional sheet structures, which have excellent HER performance and can efficiently catalyze HER in fuel cells. Through the improvement of the synthesis method, a controllable synthesis method is provided, and the corresponding molybdenum disulfide is prepared by this method, and the cobalt-modified molybdenum disulfide is further synthesized, and the cobalt-modified molybdenum disulfide loaded with Pd is further synthesized The nanosheet has excellent HER performance and can efficiently catalyze HER in a fuel cell.

Description

technical field [0001] The invention belongs to the field of material synthesis, specifically relates to the field of research and synthesis of nanometer materials, and more specifically relates to molybdenum disulfide, cobalt-modified molybdenum disulfide, Pd-loaded nanosheets and their synthesis methods and applications. Background technique [0002] With the world's increasing energy needs and environmental problems, it is imminent to find clean energy. In recent years, the development and utilization of hydrogen fuel cells has further broadened the scope of research in the field of energy. In the process of designing hydrogen fuel cells, improving the reaction efficiency of the hydrogen evolution reaction (HER) (reducing the overpotential of HER) has become the key to commercial application. [0003] In recent years, researchers have discovered layered MoS experimentally (Norskv team) and theoretically (Jaramillo team) 2 The Mo edge has the best H adsorption energy (ΔG...

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): C01G39/06B22F1/02
Inventor 陈昌云刘苏莉张皖佳张苏迪穆雪琴
Owner NANJING XIAOZHUANG UNIV
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