Holistic catalytic reactors with fractal structures have attracted growing attention in heterogeneous reactions because of their advantages of improved mass transfer and easy separation. Herein, a cost-efficient and straightforward design strategy that combined three-dimensional printing and electroless deposition was presented to construct dynamic, holistic stirred reactors with the fractal structure. The conversion factor α of the fractal impeller is 65.01 mmol m⁻² h⁻¹ with a large volume of reactant (80 ml), which is 1.7 times that of the normal impeller with the same loading of Ag catalysts. Experimental results and simulation analysis demonstrate that the fractal impeller significantly improves the catalytic performance by enhancing mass transfer and spatial dispersion in the reaction. Moreover, the holistic impeller could be reused 10 times without obvious loss of catalytic performance, and easily separated from the reaction system. The structural design of fractal reactors will open the way for high-efficiency dynamic heterogeneous catalytic reactors.

中文翻译：

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用于多相反应的具有分形结构的三维打印整体反应器

具有分形结构的整体催化反应器由于其改善传质和易于分离的优点在多相反应中引起了越来越多的关注。在此，提出了一种结合 3D 打印和化学沉积的经济高效且直接的设计策略，以构建具有分形结构的动态、整体搅拌反应器。分形叶轮的换算系数α为65.01 mmol m ^-2  h ^-1反应物体积大（80毫升），是同等银催化剂负载的普通叶轮的1.7倍。实验结果和模拟分析表明，分形叶轮通过增强反应中的传质和空间分散，显着提高了催化性能。此外，整体叶轮可以重复使用10次，催化性能没有明显损失，并且易于与反应体系分离。分形反应器的结构设计将为高效动态多相催化反应器开辟道路。