ChemInform Abstract: THE ROLE OF GROUP VIII METAL PROMOTER IN MOLYBDENUM DISULFIDE AND TUNGSTEN DISULFIDE HYDROTREATING CATALYSTS. II. CATALYTIC AND PHYSICOCHEMICAL PROPERTIES OF NICKEL-PROMOTED CATALYSTS

1985 ◽  
Vol 16 (19) ◽  
Author(s):  
D. S. THAKUR ◽  
P. GRANGE ◽  
B. DELMON
Keyword(s):  
Physicochemical Properties ◽  
Molybdenum Disulfide ◽  
Tungsten Disulfide ◽  
Group Viii ◽  
Hydrotreating Catalysts ◽  
Group Viii Metal ◽  
And Tungsten

The role of Group VIII metal promoter in MoS2 hydrotreating catalysts

1985 ◽  
Vol 94 (1) ◽  
pp. 310-312 ◽  
Author(s):  
Deepak S. Thakur
Keyword(s):  
Group Viii ◽  
Hydrotreating Catalysts ◽  
Group Viii Metal

Tribological Studies of Transmission Oil Dispersed With Molybdenum Disulfide and Tungsten Disulfide Nanoparticles

2017 ◽  
Vol 139 (4) ◽  
Author(s):  
V. Srinivas ◽  
R. N. Thakur ◽  
A. K. Jain ◽  
M. Saratchandra Babu
Keyword(s):  
Molybdenum Disulfide ◽  
Size Variation ◽  
Tungsten Disulfide ◽  
Particle Size Analyzer ◽  
Transmission Oil ◽  
Mos2 Nanoparticles ◽  
The Stability ◽  
Friction And Wear Characteristics ◽  
Load Conditions ◽  
And Tungsten

This paper compares the tribological properties of transmission oil dispersed with molybdenum disulfide (MoS2) and tungsten disulfide (WS2) nanoparticles. Lubricant samples are prepared by dispersing MoS2 and WS2 nanoparticles in 0.5 wt.% in transmission oil. The nanoparticles are stabilized in the lubricant by surface modification with surfactant SPAN 80. The stability of the lubricant in terms of size variation of dispersed nanoparticles is evaluated using particle size analyzer. The antiwear, antifriction, and extreme pressure (EP) properties are tested on a four-ball wear tester and a comparison is made to assess the relative performance of MoS2 and WS2 nanoparticles. The friction and wear characteristics of lubricant dispersed with nanoparticles are strongly dependent upon the load taken into consideration. The lubricant dispersed with WS2 nanoparticles gave higher weld load and load wear index (LWI) than that of lubricant dispersed with MoS2 nanoparticles. The metallographic studies show that under high load conditions, the WS2 nanoparticles deposit more than MoS2 nanoparticles, thereby giving better performance at higher load conditions.

scholarly journals Q-switched erbium-doped fibre laser based on molybdenum disulfide and tungsten disulfide as saturable absorbers

2017 ◽  
Vol 18 (1) ◽  
pp. 20
Author(s):  
K Mohamed ◽  
B Hamida ◽  
Khan Sheroz ◽  
L Hussein ◽  
M Ahmat ◽  
...  
Keyword(s):  
Molybdenum Disulfide ◽  
Tungsten Disulfide ◽  
Fibre Laser ◽  
Saturable Absorbers ◽  
Erbium Doped ◽  
And Tungsten
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