Facile Synthesis of Metalloporphyrins-Ba2 Composites as Recyclable and Efficient Catalysts for Olefins Epoxidation Reactions
Facile Synthesis of Metalloporphyrins-Ba2 Composites as Recyclable and Efficient Catalysts for Olefins Epoxidation Reactions
复制标题
轻松合成金属卟啉-Ba2 复合材料作为烯烃环氧化反应的可回收高效催化剂
DOI：
10.1007/s40242-019-8348-6
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发表时间：
2019
影响因子：
3.1
通讯作者：
Ji Hongbing
中科院分区：
文献类型：
--
作者：
He Qian;Zhang Ying;Xiao Huajian;He Xiaohui;Zhou Xiantai;Ji Hongbing
采用简便的共沉淀法制备了新型金属卟啉- ba2 +复合材料。直径3 μm，呈橄榄状。采用烯烃环氧化反应考察其催化性能。与游离金属卟啉相比，复合材料不仅具有更好的稳定性和可回收性，而且具有更强的催化活性。这种催化行为可能与复合材料独特的结构有关，例如r - so3与Ba2+离子之间的强相互作用以及金属卟啉在催化剂表面的均匀分布。此外，该复合材料与广泛的衬底具有良好的相容性。设计良好的复合材料有望成为工业上重要反应的高效催化剂，替代许多复杂合成的金属卟啉基材料。
A facile co-precipitation method was developed to prepare the novel metalloporphyrins-Ba2+composites withca.3 μm diameter and olive-like morphology. Olefins epoxidation reactions were employed to investigate their catalytic performance. Compared with the free metalloporphyrins, the composites exhibited not only the improved stability and recyclability, but also the enhanced catalytic activity. Such catalytic behaviors could be related to the unique structure of the composites, e.g., the strong interaction between R-SO3-and Ba2+ions and the uniform distribution of metalloporphyrins on the catalyst surface, respectively. Furthermore, the composites showed good compatibility with a wide range of substrates. The well-designed composites are expected to be efficient catalysts, alternative to many sophisticated-synthesized metalloporphrins-based materials, in the industrially important reactions.