A green method for the production of cobalt/(TEMPO-Cell) aerogel heterogeneous catalyst was developed. The preparation implied the reduction of CoSO₄ by NaBH₄ in TEMPO-Cell water dispersion in ambient conditions. The formation of Cobalt particles is due to the presence of “TEMPO-CELL” which screens the Co²⁺ ions and prevents their combination with boron. SEM, XRD, EDX, FTIT, TEM and XPS were used to analyze the structure of the catalyst and showed that metallic cobalt particles have nanometric size and are well dispersed in the aerogel. The catalyst showed excellent activity for model reactions such as the reduction of 4-nitroaniline, 4-nitrophenol and 2-nitrophenol in water, in the presence of NaBH₄. The reaction kinetic was studied by UV–visible spectroscopy, which showed that this catalyst is efficient to achieve 100 % reduction with high reaction rate and turnover frequency. The aerogel catalyst was reused more than ten times without significant loss of its catalytic activity.

开发了一种绿色生产钴/（TEMPO-Cell）气凝胶非均相催化剂的方法。该制备暗示在环境条件下在TEMPO-Cell水分散体中通过NaBH ₄减少CoSO _{4 。}钴颗粒的形成是由于“TEMPO-CELL”的存在，它可以屏蔽 Co ²⁺离子并阻止它们与硼结合。SEM、XRD、EDX、FTIT、TEM和XPS用于分析催化剂的结构，表明金属钴颗粒具有纳米尺寸，并且很好地分散在气凝胶中。_{该催化剂在 NaBH 4}存在下对水中的 4-硝基苯胺、4-硝基苯酚和 2-硝基苯酚等模型反应显示出优异的活性。. 通过紫外-可见光谱研究了反应动力学，结果表明该催化剂能够有效地实现 100% 的还原，同时具有高反应速率和周转频率。气凝胶催化剂重复使用十次以上，其催化活性没有明显损失。