Molybdenum(IV) 2-ethylhexanoate (15% Mo)

• CAS: 34041-09-3
• Catalog Number: ACM34041093
• Category: Main Products
• Molecular Weight: 668.75
• Molecular Formula: C32H60O8Mo
• Appearance: Reddish-brown liquid

Case Study

MoS2 Catalyst Prepared from Mo-Octoate and Mo-Micelle Precursors for Hydroconversion

Rezaei, Hooman, et al. Energy & fuels 26.5 (2012): 2768-2778.

The hydroconversion of cold lake vacuum residue (CLVR) was examined in a semi-batch, slurry-phase reactor at temperatures between 415 and 445 °C, at a pressure of 13.8 MPa, and over a reaction period of 1 hour. This study utilized MoS2 catalysts derived from two precursors: oil-soluble Mo-octoate (15.3 wt % Mo as molybdenum-2-ethylhexanoate) and water-soluble Mo-micelle (100, 300, 600, and 1800 ppm Mo).
Key Findings:
· Both types of precursors produced MoS2 with similar effects on coke suppression, residue conversion, and hydrogen uptake.
· The coke yield was reduced from 22 wt % without a catalyst to 4.8 wt % with 100 ppm Mo. The optimal Mo concentration for maximizing residue conversion (84 wt %) while minimizing coke yield (2.9 wt %) was determined to be 600 ppm.
· The properties of the recovered coke were analyzed in relation to catalyst concentration and reactor age. At higher catalyst concentrations (>600 ppm Mo) and shorter reaction times, the resulting coke was mostly amorphous and exhibited a high H/C ratio.
· The solid catalyst-coke composite was recovered from the reactor and recycled without further processing. The catalytic performance of the recycled catalyst was comparable to that of the fresh catalyst and showed no deactivation under these hydroconversion conditions.

Molybdenum(IV) 2-Ethylhexanoate in High-Performance Lithium-Ion Battery Anodes

Wang, Hongkang, et al. Journal of Colloid and Interface Science 547 (2019): 299-308.

Molybdenum(IV) 2-ethylhexanoate (C32H60O8Mo) was employed as a critical precursor in developing hybrid SnO2/MoO3@carbon nanoflake (SMC) anodes for lithium-ion batteries in this work.
Amorphorization-Hybridization Preparation Strategy
The strategy was designed to improve lithium storage by integrating atomically mixed amorphorized SnO2/MoO3 into porous carbon nanoflakes (referred to as SnO2/MoO3@CNFs or SMC for short). These structures are prepared through a simple process of annealing tin(II)/molybdenum(IV) 2-ethylhexanoate within carbon nanoflakes at ambient atmosphere at a low temperature of 300 °C. The loading of SnO2/MoO3 within the CNFs can be easily varied by adjusting the ratios of Sn, Mo, and carbon precursors.
Key Results:
· The amorphorized SnO2/MoO3@CNFs with 32 wt% carbon (SMC-32) as anodes in LIBs delivers an ultrahigh reversible capacity of 1120.5 mA h/g after 200 cycles at a rate of 200 mA/g and 651.5 mA h/g after a further 300 cycles at 2000 mA/g.
· This capacity far exceeds that of crystalline SnO2/CNFs (34 wt% carbon), MoO3/CNFs (22.7 wt% carbon), and SnO2/MoO3@CNFs with low carbon contents of 11 wt% and 25 wt%.
· Electrochemical testing and ex situ structural characterization reveal that the amorphorization hybridized with CNFs leads to improved lithium storage with a high pseudocapacitive contribution.