Nitroarene hydrogenation catalysts based on Pd nanoparticles glued with PDA on inorganic supports: Multivariate Curve Resolution as an useful tool to compare the catalytic activity in multi-step reactions

Two green catalysts based on Pd(0) nanoparticles (Pd NPs) anchored through PDA porous silica and magnetite have been synthesized using a generalized simple reproducible “two-step” methodology. Both were tested for model reaction, the hydrogenation of 4-nitrophenol NaBH4 as hydrogenating agent, especially good activity has achieved in case containing inorganic core [email protected]3O4). We analyzed effect associated with catalyst separation method (centrifugation or magnetically) that affect to distribution aggregation degree Pd NPs. In addition, we also correlate final morphology its relationship nature supports: (UVM-7 type silica) massive, although nanoscale, typical Fe3O4 particles used. studied nitroarenes, follows Haber multistep mechanism various intermediates. order understand not only process whole, but importance each step intermediates involved, applied multivariate curve resolution (MCR) factorial This approach, normally is used catalysis works, makes it possible quantitatively determine rate limiting step, allow extract complete information from catalytic process.