Electrochemical and Morphological Investigations of Ga Addition to Pt Electrocatalyst Supported on Carbon

Table 1

EDX results and compositions of PtGa/C electrocatalysts.

Nominal composition (% mol)	Experimental composition (% mol)	Nominal weight (mg)	Experimental weight (mg)	Weight loss Pt : Ga (%)	Elemental composition of catalyst (wt.%) Pt : Ga
					Platinum	Gallium	Oxygen	Carbon
100 : 0	100 : 0	30	19.2	36	35.0	0.0	3.4	61.6
90 : 10	91 : 9	50	46.2	7.6	26.6	4.7	4.7	66.0
80 : 20	83 : 17	50	44.4	11.2	25.4	5.2	5.6	63.8
70 : 30	75 : 25	50	44.8	10.4	23.6	10.7	6.8	59.0
60 : 40	69 : 31	50	42.2	15.6	14.7	4.9	6.5	73.8
50 : 50	54 : 46	50	44.1	11.8	17.5	10.2	10.3	62.0