Preparation method of cadmium-doped molybdenum disulfide nano lubricating additive

A technology of lubricating additives and molybdenum disulfide, which is applied in the field of nanomaterials, can solve the problems of complex methods and high requirements for instruments and equipment, and achieve the effects of simple and easy-to-control processes, cost-effective input, and good tribological properties

Active Publication Date: 2014-03-05
ZHENJIANG COLLEGE
View PDF2 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Recently, the graphene-like structure MoS 2 2D structures have been widely reported, and the main preparation methods are liquid pha

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
  • Preparation method of cadmium-doped molybdenum disulfide nano lubricating additive
  • Preparation method of cadmium-doped molybdenum disulfide nano lubricating additive
  • Preparation method of cadmium-doped molybdenum disulfide nano lubricating additive

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0020] Example 1:

[0021] A Cd doped MoS 2 The preparation method of nano lubricating additive includes the following steps:

[0022] (1) Add 0.22g Na 2 MO 4 , 0.3g Na 2 S, 0.28g NH 2 OH HCl and 0.1g CdSO 4 Dissolve in 60mL of deionized water, completely dissolve, and set aside;

[0023] (2) Continue to stir for 30 minutes, and then transfer the obtained mixed solution to a 100ml stainless steel reactor, place it in a vacuum drying oven at 180°C for 24 hours, and cool to room temperature;

[0024] (3) After centrifugal separation, the reaction product was washed repeatedly with deionized water and absolute ethanol, and finally dried under vacuum at 80°C for 10 hours to obtain a gray-black product powder, namely Cd doped MoS 2 Nano lubricant additives.

[0025] The reagents and process conditions used in Examples 2-4 are shown in Table 1:

[0026] Table 1

[0027]

Example Embodiment

[0028] Example 5: Friction test method: use an ultrasonic generator to dope dispersant span 80 and product Cd with MoS 2 Nanoflowers are uniformly dispersed in the base oil (paraffin) and formulated into a turbid liquid oil sample with a mass fraction of 1%-5%. The friction test is carried out on the CETR UMT-2 multifunctional friction and wear testing machine. Ball-disk contact is used, the speed is 50-400rpm, the load is 10N-50N, and the experiment time is 30min. The stainless steel ball model used in the experiment is 440-C (9Cr18), the diameter is 3mm, and the hardness is HRC62.

[0029] Cd-doped MoS obtained in Examples 1 to 4 2 The performance inspection parameters of nano-lubricating additives are shown in Table 2:

[0030] Table 2

[0031]

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 preparation method of a cadmium-doped molybdenum disulfide nano lubricating additive, which is characterized by comprising the following steps: (1) dissolving (NH4)2MO4, Na2S, a reducer and a soluble cadmium salt in deionized water to obtain a mixture solution for later use; (2) transferring the solution obtained in the step (1) into a stainless steel reaction kettle, sealing, reacting at 130-260 DEG C for 24 hours, and cooling to room temperature to obtain the reaction product; and (3) separating the reaction product, washing, and drying to obtain the flower-structure Cd-doped MoS2 nanosheets assembled from nanosheets. The method has the advantages of simple technique and low cost; and the prepared product has the advantages of high purity, high yield, high specific area and favorable tribological performance.

Description

technical field [0001] The invention relates to the field of nanomaterials, in particular to a cadmium (Cd) doped molybdenum disulfide (MoS 2 ) The preparation method of nano-lubricating additive. Background technique [0002] MoS 2 The material is a typical layered structure material, each MoS 2 The monolayer is composed of one layer of Mo atoms and the upper and lower layers of S atoms. Covalent bonds are formed between Mo and S atoms, so the monolayer structure is very stable, and the layers are combined through weak van der Waals interactions, so With good physical and chemical properties and novel structure, it is widely used in solid lubricants, desulfurization catalysts for petrochemical production, elastic coating materials, hydrogen storage materials, lithium storage electrode materials, catalytic hydrogenation and other fields. Especially MoS with 2D structure 2 Nanomaterials have received extensive research and attention, and ordinary MoS 2 Compared to MoS 2...

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): C01G39/06B82Y40/00B82Y30/00
Inventor 唐国钢唐华汪萍
Owner ZHENJIANG COLLEGE
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