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Cooperative Catalysis for Selective Alcohol Oxidation with Molecular Oxygen

机译:选择性催化氧化与分子氧的协同催化

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The activation of dioxygen for selective oxidation of organic molecules is a major catalytic challenge. Inspired by the activity of nitrogen-doped carbons in electrocatalytic oxygen reduction, we combined such a carbon with metal-oxide catalysts to yield cooperative catalysts. These simple materials boost the catalytic oxidation of several alcohols, using molecular oxygen at atmospheric pressure and low temperature (80 degrees C). Cobalt and copper oxide demonstrate the highest activities. The high activity and selectivity of these catalysts arises from the cooperative action of their components, as proven by various control experiments and spectroscopic techniques. We propose that the reaction should not be viewed as occurring at an active site', but rather at an active doughnut'-the volume surrounding the base of a carbon-supported metal-oxide particle.
机译:用于选择性氧化有机分子的双氧活化是主要的催化挑战。受氮掺杂碳在电催化氧还原中的活性的启发,我们将这种碳与金属氧化物催化剂结合使用,以产生协同催化剂。这些简单的材料可以在大气压力和低温(80摄氏度)下使用分子氧来促进几种醇的催化氧化。钴和氧化铜显示出最高的活性。这些催化剂的高活性和选择性源自其组分的协同作用,如各种控制实验和光谱技术所证明的。我们建议该反应不应被视为在活性位点发生,而是在活性甜甜圈处发生-碳负载的金属氧化物颗粒底部周围的体积。

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