May I know if anyone has any idea of this failure and amendment? Tried several times but still cannot succeed....
CV scan conditions: 50 mV/s, from 0.43 V vs RHE to -0.25 V vs RHE.
Electrolyte: 0.1 M NaOH(99.99%), Counter electrode: Pt foil. Reference electrode: home-made RHE(tested the potential,no problem)
The results in CV shows even no positive current in this scan potential range...
Reference: Sebastián-Pascual, P.; Escudero-Escribano, M. Surface characterization of copper electrocatalysts by lead underpotential deposition. J. Electroanal. Chem. 2021, 896. DOI: 10.1016/j.jelechem.2021.115446.
Please see the attached image for ideal one and received results. TQ!!!