Table 3.

ORR catalytic performance data of the as-prepared aerogels.

Sample	Epeak	Jpeak	Eonset (V)	E1/2 (V)	|Jlimit| (mA·cm−2)	|Tafel slope| (mV·dec−1)	Stability (mV)
TA/Fe1	0.67	1.21	0.81	0.70	4.73	89	2.0
TA/Fe2	0.67	0.74	0.80	0.71	4.51	117	4.5
TA/Fe3	0.67	1.18	0.78	0.71	5.34	97	4.5
TA/Fe4	0.68	1.41	0.78	0.71	4.88	92	2.5