. Author manuscript; available in PMC: 2020 Mar 9.

Published in final edited form as: Chem Eng J. 2017 Dec 30;338:709–718. doi: 10.1016/j.cej.2017.12.152

Tab. 2.

Parameters associated with decoupling study of H₂O₂ decomposition pathways.

Target Reaction	No.	H₂O₂ Concentration (mmol L⁻¹)	Current (mA)	Na₂SO₄ concontration (mol L⁻¹)	Electrode^a
Anodic Oxidation	A1	2	50	0.05	G+G
	A2	2	100	0.05	G+G
	A3	2	200	0.05	G+G

Cathodic Reduction^b	C1	0.5	100	0.05	G+G
	C2	2	50	0.05	G+G
	C3	2	100	0.05	G+G
	C4	2	200	0.05	G+G
	C5	10	100	0.05	G+G
	C6	2	50	0.05	G+R
	C7	2	100	0.05	G+R
	C8	2	200	0.05	G+R

Disproportion in Bulk^c	D1	0.5	200	0.01	G+G
	D2	0.5	200	0.05	G+G
	D3	0.5	200	0.25	G+G
	D4	2	200	0.01	G+G
	D5	2	200	0.05	G+G
	D6	2	200	0.25	G+G
	D7	10	200	0.01	G+G
	D8	10	200	0.05	G+G
	D9	10	200	0.25	G+G

Note:

G means graphite plate, and R means RVC foam.

pH in the cathodic and anodic compartment was monitored, results were shown in part 3.3.

pH was adjusted to 3.0 for D1~D9, which is the best pH for the EF process [33].