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Progress in Molybdenum Nitride-based Hydrogenation Catalyst Achieved
Author: LI Jingping
Update time: 2015-04-09
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Study on preparation of new type molybdenum nitride under high pressure for hydrogenation catalysis has made headway by ICC researchers, in collaboration with scientists from University of Nevada Las Vegas, Sichuan University and Beijing Institute of Low Carbon Clean Energy. Achievements concerning this research was published on  J. Am. Chem. Soc. (http://pubs.acs.org/doi/abs/10.1021/jacs.5b01446)

Nitrogen-rich transition-mental nitride is regarded as the most promising high-efficiency catalyst material for next generation clean energy and renewable energy. But, it is very difficult to infiltrate nitrogen atoms through transition metal lattice. As a result of latest research, new-structural and nitrogen-rich molybdenum-nitrogen binary compound----3R-MoN2---- has been prepared via high-temperature and high-pressure solid phase ion exchange process.  

Catalytic reaction of petroleum hydrogenation desulfurization using the nitrid shows that: its catalytic activity is more than three times that of conventional MoS2, and its hydrogenation selectivity more than twice that of MoS2. With comparatively strong acid resistance, the nitrid can also be used in methanation of acid syngas. The conversion rate of CO and H2 reaches as high as above 80%. Therefore, it will hopefully replace MoS2 as the next generation catalyst parental material. Moreover, it may be used for preparing graphene-like two-dimension molybdenum nitrid when interlamination peeling is carried out, which is expected to find wide application in sectors such as photoelectric materials, energy conversion and environmental catalysis.

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