Organodiphosphonate Metal‐Organic Frameworks Derived Ni‐P@C Catalyst for Hydrogenation of Furfural

Abstract

Tetraethyl p-xylenediphosphate is used as the organic ligand to prepare the Ni−P-MOFs material belonging to the category of organic phosphoric acids, through pyrolysis and in-situ reduction reaction of Ni−P-MOFs material during the high-temperature carbonization process, Ni−P@C catalyst with graphitized carbon-covering Ni2P particles is prepared. Compared with Ni−P catalyst prepared through coprecipitation method, Ni−P@C catalyst prepared with Ni−P-MOFs material can obviously decrease the formation temperature of Ni2P active phase and retain the schistose morphology of the Ni−P-MOFs material, which is of high specific area, and meanwhile effectively suppresses the agglomeration of Ni2P particles. It is indicated by research on furfural hydrogenation performance that, Ni−P@C catalyst presents a high activity and stability in furfural hydrogenation. Products of furfural hydrogenation catalyzed by Ni−P@C catalyst mainly contain furfuryl alcohol, 2-methylfuran and 2-methyltetra hydrofuran, and the reaction temperature and reaction time have great influence on the distribution of products. The carbon-covering structure of Ni−P@C catalyst can effectively protect the active components of Ni2P, thus presenting a high stability and good reusability.