Application of 162318-34-5, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.162318-34-5, Name is 5-Ethynyl-2,2′-bipyridine, molecular formula is C12H8N2. In a Article£¬once mentioned of 162318-34-5
Selective Reduction of CO2 to CO by a Molecular Re(ethynyl-bpy)(CO)3Cl Catalyst and Attachment to Carbon Electrode Surfaces
The catalytic properties of Re(ethynyl-bpy)(CO)3Cl and Re(vinyl-bpy)(CO)3Cl were studied and compared with those of the previously reported Re(tBu-bpy))CO)3Cl. As a molecular catalyst, Re(ethynyl-bpy)(CO)3Cl reduces CO2 to CO with lower overpotential (n ? 0.525 V), higher selectivity for CO (FE 96%), and higher reaction rate (Icat/Ip = 27) compared to similar catalysts reported to date. The catalyst undergoes electropolymerization at the surface of a glassy carbon electrode in dry acetonitrile solution, creating a polymer film that is electroactive under a CO2 atmosphere. In the presence of trifluoroethanol (TFE) (pKa 35.4, MeCN) these films exhibit high efficiencies for CO (FECO 97%). On the basis of preliminary studies, these electrodes show promise as heterogeneous electrocatalysts. Further optimization and understanding of deactivation pathways will be required to make these systems practical. The ethynyl functionalized Re(ethynyl-bpy)(CO)3Cl catalyst also can be attached to graphitic carbon electrodes through the “click” reaction. This represents the first example of attachment of a CO2 reduction catalyst to an electrode surface by “click” chemistry.
A reaction mechanism is the microscopic path by which reactants are transformed into products. Each step is an elementary reaction. In my other articles, you can also check out more blogs about 162318-34-5
Reference£º
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI