A highly efficient and durable metal catalyst stabilized by proper support is vital for organic catalytic transformations. In this study, a sequential pyrolysis–acid etching strategy was reported to prepare a nitrogen-rich nanocarbon inlaid with vanadium oxide catalyst (V@CN-750), which was evolved from the preassembly of a chitin−V precursor. V@CN-750 exhibited excellent activity and selectivity of 96% and 98%, respectively, for catalytic oxidation of thioanisole to sulfoxide at 40 °C for 8 h, which is considerably superior to that of V₂O₅ nanoparticles and homogeneous VO(acac)₂. Moreover, V@CN-750 can be recycled at least eight times without affecting its catalytic performance.

通过适当的载体稳定的高效耐用金属催化剂对于有机催化转化至关重要。在这项研究中，据报道采用顺序热解-酸蚀刻策略来制备镶嵌有钒氧化物催化剂（V @ CN-750）的富氮纳米碳，该纳米碳是从几丁质-V前体的预组装中演化而来的。V @ CN-750在40°C下将硫代苯甲醚催化氧化为亚砜8 h时，分别具有96％和98％的优异活性和选择性，这明显优于V ₂ O ₅纳米颗粒和均相VO（ acac）₂。而且，V @ CN-750至少可循环使用八次，而不会影响其催化性能。