Atomically Dispersed Ru on Manganese Oxide Catalyst Boosts Oxidative Cyanation,ACS Catalysis

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Atomically Dispersed Ru on Manganese Oxide Catalyst Boosts Oxidative Cyanation
ACS Catalysis ( IF 11.3 ) Pub Date : 2020-05-07 , DOI: 10.1021/acscatal.0c00485
Hai Wang ₁ , Dongyang Xu ₂ , Erjia Guan ₃ , Liang Wang ₁ , Jian Zhang ₄ , Chengtao Wang ₅ , Sai Wang ₅ , Hua Xu ₅ , Xiangju Meng ₅ , Bo Yang ₂ , Bruce C. Gates ₃ , Feng-Shou Xiao _{1,

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Affiliation

There 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.

中文翻译：

原子分散Ru在氧化锰催化剂上促进氧化氰化

强烈鼓励人们在环境上友好和可持续地生产有机腈，以避免使用有毒的氰化物。在这里，我们报告锰氧化物纳米棒负载的单中心Ru催化剂对各种醇的氧化氰化反应具有活性，选择性和稳定性，从而得到相应的腈，其中分子氧和氨为反应物。具有原子分散性的极少量的Ru（0.1 wt％）增强了锰氧化物的催化性能。实验和理论结果表明，Ru位点如何增强催化剂的耐氨性，增强其在醇脱氢和氧活化中的性能，这是氧化氰化的关键步骤。该研究证明了单中心钌催化剂在腈生产中的高效性。

更新日期：2020-05-07

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