Advances and Challenges in Development of Transition Metal Catalysts for Heterogeneous Hydrogenation of Organic Compounds

Actual problems of development of catalysts for hydrogenation of heterocyclic compounds by hydrogen are summarized and discussed. The scope of review covers composites of nanoparticles of platinum group metals and 3d metals for heterogeneous catalytic processes. Such problems include increase of catalyst activity, which is important for reduction of precious metals content; development of new catalytic systems which do not contain metals of platinum group or contain cheaper analogues of Pd; control of factors which make influence on the selectivity of the catalysts; achievement of high reproducibility of the catalyst's performance and quality control of the catalysts. Own results of the authors are also summarized and described. The catalysts were prepared by decomposition of Pd0 and Ni0 complexes, pyrolysis of Ni2+ and Co2+ complexes deposited on aerosil and reduction of Ni2+ in pores of porous support in situ. The developed catalysts were used for hydrogenation of multigram batches of heterocyclic compounds. The review covers composites of nanoparticles of platinum group metals and 3d metals for heterogeneous catalytic processes. The issues of catalysts activity, decrease of precious metals content, selectivity, reproducibility and quality control of the catalysts are considered. Own results of the authors are also summarized and described. The catalysts were prepared by decomposition of Pd0- and Ni0 complexes, pyrolysis of Ni2+- and Co2+ complexes deposited on aerosil and reduction of Ni2+ in pores of porous support in situ.image

Automated summary

The actual problems of catalyst development for hydrogenation of heterocyclic compounds are summarized and discussed in this review. The scope includes composites of nanoparticles of platinum group metals and 3d metals for heterogeneous catalytic processes. The review focuses on catalyst activity increase, decrease of precious metals content, selectivity, reproducibility, and quality control of the catalysts.