The Redox Chemistry of Ruthenium Dioxide: A Cyclic Voltammetry Study—Review and Revision

Table 3

Calculated electrons for each redox reaction using peak potential differences and calculated charges at different scan rates in 1 M NaOH. For details, compare with Table 1.

Peak	1: Ru-H			2: possibly Ru(II)/Ru(III)			3: Ru2(III)O3/2Ru(IV)O2			10	4: Ru(IV) → Ru(VI)			5: Ru(VI)∖Ru(VII)			8
mV/s	z(Δ)	(Q)		z(Δ)	z(Q)		z(Δ)	z(Q)		z(Q)	z(Δ)	z(Q)		z(Δ)	z(Q)		z(Q)
100	1.3	1.0	0.4	(5.8)	2.0	0.4	0.7	2.0	0.6	2.0	(19)	2.0	0.5	(7.4)	1.0	0.5	(3.0)
200	(6.1)	0.4	0.5	0.2	1.1	0.5	0.8	2.7	0.8	2.0	1.2	2.4	1.0	(7.3)	1.1	0.8	(3.0)
300	(4.5)	0.4	0.5	0.2	1.2	0.6	0.7	2.8	1.0	1.4	0.6	2.3	1.2	(4.7)	1.4	0.9	2.2
500	(2.8)	0.8	0.6	0.2	2.7	0.8	0.5	2.5	1.2	1.0	1.0	2.5	1.4	(4.0)	2.0	1.0	2.0
1000	-	0.9	-	0.4	2.8	1.0	0.7	2.3	1.5	1.0	0.5	2.4	1.7	(3.0)	2.0	1.1	2.0
2000	-	1.0	-	0.9	2.4	1.0	0.6	2.3	1.7	1.0	0.7	2.5	1.7	2.2	2.0	1.2	2.0
3000	-	1.0	-	(5.8)	2.5	1.0	0.7	1.9	1.6	1.1	0.7	2.5	1.7	1.1	2.0	1.0	2.1
4000	-	1.0	-	1.7	2.5	0.9	0.5	1.5	1.7	1.1	0.5	2.4	1.7	1.1	2.1	1.2	2.2
Approx.	≈1			≈1 ⋯ 2.5			≈0.8 ⋯ 2			≈1	≈0.8 and ≈2			≈1 ⋯ 2			≈2
,	±0.04	±0.05	±0.04	±0.15	±0.05	±0.15	±0.04	±0.05	±0.04	±0.05	±0.03	±0.05	±0.03	±0.02	±0.05	±0.02	±0.02