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Atomically Dispersed Ru on Manganese Oxide Catalyst Boosts Oxidative Cyanation
journal contribution
posted on 2020-05-21, 16:02 authored by Hai Wang, Dongyang Xu, Erjia Guan, Liang Wang, Jian Zhang, Chengtao Wang, Sai Wang, Hua Xu, Xiangju Meng, Bo Yang, Bruce C. Gates, Feng-Shou XiaoThere
is a strong incentive for environmentally benign and sustainable
production of organic nitriles to avoid the use of toxic cyanides.
Here we report that manganese oxide nanorod-supported single-site
Ru catalysts are active, selective, and stable for oxidative cyanation
of various alcohols to give the corresponding nitriles with molecular
oxygen and ammonia as the reactants. The very low amount of Ru (0.1
wt %) with atomic dispersion boosts the catalytic performance of manganese
oxides. Experimental and theoretical results show how the Ru sites
enhance the ammonia resistance of the catalyst, bolstering its performance
in alcohol dehydrogenation and oxygen activation, the key steps in
the oxidative cyanation. This investigation demonstrates the high
efficiency of a single-site Ru catalyst for nitrile production.