Cuprous oxide (Cu₂O) nanoparticles as organic catalysts have been widely applied due to their low cost, high efficiency, and nontoxicity. However, severe agglomeration of nanoparticles would cause side effects on the catalytic performance. Herein, Cu₂O micro/nanoparticles were encapsulated into activated carbon felt (ACF) (Cu₂O@ACF) to solve nanoparticle agglomeration, and then, three products (alkenylboronates, diaryl sulfides, and 1,2,3-triazoles) were successfully prepared using Cu₂O@ACF as the catalyst. In particular, Cu₂O@ACF also showed excellent recycling performance for catalytic reactions. After 10 cycles, the yield of alkenylboronates remained high (up to 63%). ACF as a carrier can suppress the aggregation of Cu₂O micro/nanoparticles during the process of catalytic reaction, contributing to the improvement of high yield even after ten cycles. This work proposes a simple method to improve the catalytic performance of Cu₂O micro/nanoparticles by encapsulating micro/nanoparticles into ACF.

中文翻译：

---

将 Cu2O 微/纳米颗粒封装到作为有机反应催化剂的活性炭毡中

氧化亚铜（Cu ₂ O）纳米粒子作为有机催化剂由于其低成本、高效率和无毒而被广泛应用。然而，纳米颗粒的严重团聚会对催化性能产生副作用。在此，将 Cu ₂ O 微/纳米颗粒封装在活性炭毡（ACF）（Cu ₂ O@ACF）中以解决纳米颗粒的团聚问题，然后得到三种产物（烯基硼酸酯、二芳基硫化物和 1,2,3-三唑）以Cu ₂ O@ACF为催化剂成功制备。特别是，Cu ₂O@ACF 还表现出优异的催化反应回收性能。10 个循环后，烯基硼酸酯的产率仍然很高（高达 63%）。ACF作为载体可以抑制催化反应过程中Cu ₂ O微/纳米颗粒的聚集，有助于即使经过10次循环也能提高产率。这项工作提出了一种简单的方法，通过将微/纳米颗粒封装到 ACF 中来提高 Cu ₂ O 微/纳米颗粒的催化性能。