Fabrication of CuO_x-Pd Nanocatalyst Supported on a Glassy Carbon Electrode for Enhanced Formic Acid Electro-Oxidation

Table 2

Electrochemical parameters, extracted from Figures 5 and 6, of the CuO_x/Pd/GC compared with Pd/GC, Pd/CuO_x/GC electrodes in this study and other previously reported catalysts.

Electrode	Ip (mA·cm^−2)	IE = 6 mV/mA·cm^−2	Eonset (mV)	δ (%·s^−1)	TOF (s^−1)	References
Pd/GC	4.40	4.52	−230	0.007	2.33	This study
Pd/CuOx/GC	5.00	4.93	−242	0.005	2.44	This study
CuOx/Pd/GC	6.50	6.51	−260	0.002	5.71	This study
Pd/NiOx/GC	5.20	5.29	−236	0.006	2.10	[49]
Pd/Ir/GC	3.30	3.25	−250	0.05	1.90	[50]

I_E = 6 mV: current density value at a same potential of 6 mV.