Homogeneous Catalysis of Electrochemical Hydrogen Evolution by Iron(0) Porphyrins

摘要

Catalysis of electrochemical hydrogen evolution from acidic solutions by various metal electrodes has attracted considerable and continuous attention. Surprisingly, there are few examples of catalysis of the reaction by molecules dispersed in the solution or imbedded in a supporting phase coating the electrode surface. The only example of homogeneous catalysis by organic molecules involves pyridines and has been proposed to occur according to the following reaction scheme.