Direct Oxygen Transfer from H2O to Cyclooctene over Electron‐Rich RuO2 Nanocrystals for Epoxidation and Hydrogen Evolution

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Abstract
Production of more than 20 million tons of epoxides per year from olefins suffers from low atom economy due to the use of oxidants and complex catalysts with unsatisfactory selectivity, leading to huge environmental and economic costs. We present a proof‐of‐concept application of electron‐rich RuO2 nanocrystals to boost the highly selective epoxidation of cyclooctene via direct oxygen transfer from water as the sole oxygen source under mild conditions. The enhanced electron enrichment of RuO2 nanocrystals via the Schottky effect with nitrogen‐doped carbons largely promotes the capture and activation of cyclooctene to give a high turnover frequency (260 h−1) of cyclooctene oxide, far surpassing the reported values (90 %) on the cathode without impacting on the selectivity to epoxide (>99 %) on the anode.
Funding Information
  • National Natural Science Foundation of China (22071146, 21931005, and 21720102002, 21876128)
  • Science and Technology Commission of Shanghai Municipality (19JC1412600 and 20520711600)

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