Ethylene feedstocks must be ultrapure for plastics production, but metal-based catalysts used for acetylene removal are limited by cost, scarcity and durability. Now, electrochemical studies demonstrate that 2-thiolimidazole exceeds the efficiency of traditional metal-based catalysts with remarkable ...
However, metal-free catalysts, featuring defined active sites, rarely show activities as promising as metal-based materials. Here we report 2-thiolimidazole as an efficient metal-free catalyst for selective electrocatalytic hydrogenation of acetylene into ethylene. Under alkaline conditions, the ...
In addition to the brilliant chiral phosphorus metal catalysts, chiral phosphine-free metal complexes find increasing application as catalysts for asymmetric hydrogenation. In this account, two types of chiral phosphine-free ligands, N-heterocyclic carbene-based C,N-ligands and diamine-based N,N-ligand...
ChemInform Abstract: Metal-Free, Carbon-Based Catalysts for Oxygen Reduction Reactionsdoi:10.1002/chin.201602202organicchemistryreviewcatalysisphase-transfercatalysisreductionhydrogenationZhiyiDep.WuDep.ZafarDep.IqbalDep.XianqinDep.WangDep.WileyCheminform
Phosphine-free chiral metal catalysts for highly effective asymmetric catalytic hydrogenation. Y.-M. He,Q.-H. Fan. Org Biomol. Chem . 2010Y.-M. He,Q.-H. Fan.Phosphine-free chiral metal catalysts for highly effective asymmetric catalytic hydrogenation. Org Biomol. Chem . 2010...
Electrocatalytic reduction of water to molecular hydrogen via the hydrogen evolution reaction may provide a sustainable energy supply for the future, but its commercial application is hampered by the use of precious platinum catalysts. All alternatives to platinum thus far are based on nonprecious m...
Purified oxygen-and nitrogen-modified multi-walled carbon nanotubes as metal-free catalysts for selective olefin hydrogenationPurified oxygen-and nitrogen-modified multi-walled carbon nanotubes as metal-free catalysts for selective olefin hydrogenationPeirong ChenLaboratory...
NOBLE METAL CATALYSTS FOR LOW-TEMPERATURE NAPHTHALENE HYDROGENATION IN THE PRESENCE OF BENZOTHIOPHENE The hydrogenation of aromatic and polyaromatic compounds are typically exothermic; therefore, a lower reaction temperature is thermodynamically favorable. ... SD Lin,C Song - 《American Chemical Society Divi...
Due to their availability, price and biological relevance, the use of catalysts based on 3d transition metals is of substantial importance for the synthesis of industrial chemicals, but also for organic synthesis in general. Hence in recent years, especi
to develop more powerful catalysts for efficient CO2conversion to multi-carbon hydrocarbons and oxygenates. Reducing the structural features to sub-nanometre dimensions often significantly enhances the hydrogenation activity for metal catalysts and it even has been demonstrated to transform a non-catalytic ...