Data related to Nyquest spectra of various Pd decorated Ni-Co/rGO anode catalyst loading in DBFC fueled by solution containing 1, 3, 5, and 8 wt. % of SBH at 0.3V, 0.5V and 0.7V was presented and figure shows an example of Nyquest plot at specific Pd decorated Ni-Co/rGO loading and various SBH% and applied voltages.