The direct oxidation of styrene into high-value chemicals under mild reaction conditions remains a great challenge in both academia and industry. Herein, we report a successful electronic structure modulation of intrinsic NiO sheets via Mn-doping towards the oxidation of styrene. By doping NiO with only a small content of Mn (Mn/Ni atomic ratio of 0.030), a 75.0% yield of STO can be achieved under the optimized reaction conditions, which is 2.13 times higher than that of the pure NiO. In addition, the catalyst exhibits robust stability and good recycling performance. The performance enhancement originates from the synergistic effect regarding the abundant Ni(II) species, the rich oxygen vacancy sites and the large amount of surface redox centers. This work provides new findings of the elemental-doping-induced multifunctionality in designing powerful catalysts for the efficient and selective oxidation of styrene and beyond.

在温和的反应条件下，将苯乙烯直接氧化成高价值的化学品仍然是学术界和工业界的巨大挑战。在本文中，我们报道了通过Mn掺杂对苯乙烯氧化成功完成的本征NiO片的电子结构调节。通过仅以少量的Mn（Mn / Ni原子比为0.030）掺杂NiO，在优化的反应条件下可以达到75.0％的STO收率，这是纯NiO的2.13倍。另外，该催化剂表现出鲁棒的稳定性和良好的再循环性能。性能增强源于对丰富的Ni（II）物种，丰富的氧空位和大量表面氧化还原中心的协同效应。