The application of heterogenized non-noble metal-based catalysts in selective catalytic hydrogenation processes is still challenging. In this respect, the preparation of a well-defined cobalt-based catalyst was investigated by immobilization of the corresponding cobalt(II)-phenanthroline-chelate on Vulcan XC72R carbon powder. The formed coreâshell structured cobalt/cobalt oxide nanocomposites are encapsulated by nitrogen-enriched graphene layers. This promising cheap heterogeneous catalyst allows for an efficient domino reductive amination of carbonyl compounds with nitroarenes.
非贵
金属基异质催化剂在选择性催化氢化过程中的应用仍然面临挑战。在此方面,通过将相应的二价
钴-
菲咯啉螯合物固定在Vulcan XC72R碳粉上,研究了制备结构明确的
钴基催化剂。形成的核壳结构的
钴/
钴氧化物纳米复合物被富含氮的
石墨烯层包裹。这种经济实惠的非均相催化剂能够实现羰基化合物与硝基
芳烃的高效多米诺还原胺化反应。