Terminal and Non Terminal Alkynes Partial Hydrogenation Catalyzed by Some d8 Transition Metal Complexes in Homogeneous and Heterogeneous Systems

Acetylene-Selective Hydrogenation Catalyzed by Cationic Nickel Confined in Zeolite

“…5 The liquidphase selective hydrogenation of alkynes has been accomplished with some d 8 transition metal complexes. 18 Especially, stabilized first-row transition metal complexes have been recently developed as efficient heterogeneous catalysts for alkyne selective hydrogenation. 19 Inspired by transition metal complex catalyzed alkyne selective hydrogenation, we report here the design and construction of cationic nickel(II) confined in zeolite for acetylene selective hydrogenation.…”

“…In principle, transition metal complexes can catalyze the selective hydrogenation of alkynes if the hydrogenation of intermediate alkenes is more difficult than their desorption . The liquid-phase selective hydrogenation of alkynes has been accomplished with some d 8 transition metal complexes . Especially, stabilized first-row transition metal complexes have been recently developed as efficient heterogeneous catalysts for alkyne selective hydrogenation .…”

Graphite oxide as a support for palladium and rhodium complexes, assessed as catalysts for the partial hydrogenation of 1-heptyne

“…The reader can find a more detailed information of these coordination compounds in published papers. 16,17 From elemental analysis Pd:Cl:N = 1:2:2 and Rh:Cl:N = 1:1:3 molar ratios can be confirmed. XPS spectra interpretation confirmed the following oxidation states: ca.…”

“…11,12 Besides, transition metal complexes are widely used as catalysts for homogeneous and heterogeneous hydrogenation reactions, presenting the advantages of higher activities and selectivity's even under mild conditions. [13][14][15][16][17] In the last decade, different transition metal complexes of Co, Cu and Rh with different ligands anchored on GO, have been tested for oxidation or reduction reactions. [18][19][20][21] There are few publications on transition metal complexes supported on GO as catalysts for the partial hydrogenation of medium chain terminal alkynes.…”