Electrocatalytic hydrogen evolution reaction with metallophthalocyanines modified with click electrochemistry

摘要: Abstract Cobalt and zinc phthalocyanines bearing terminal alkyne groups ( TA-CoPc TA-ZnPc ) were electrochemically characterized in order to determine their functionalities for practical usages as effective electrocatalysts. Observation of multi-electron metal and/or ring based reduction reactions at low potentials indicated the worthy these complexes functional materials. Shifts proton toward more positive values solutions involving MPc homogeneous electrocatalytic activities hydrogen evolution reaction HER ). For usage heterogeneous electrocatalysts , electrodes constructed with a new electrode modification technique, “click electrochemistry”, which bonded azido functionalized polyaniline (PANI-N 3 electropolymerized on electrodes. The modified Glassy Carbon Electrode (GCE)/PANI-N / GCE/PANI-N using voltammetric techniques electrochemical impedance spectroscopy (EIS), then tested electrocatalyst . especially decrease over-potential bare about 216 mV increase efficiency 32 fold pHs.