Table 2. The faradaic efficiency and current density of the electroreduction of LA to GVL using PbS-400/CP electrode at an applied potential of –2.15 V (vs. Ag/Ag⁺) in (1.8 wt%)–MeCN–H₂O (1.8 wt%) catholyte for 4 h.

Entry	IL	FEGVL a (%)	J b (mA cm–2)	Conductivity (ms cm–1)
1	[Emim]BF4	12.4	33.9	9.43
2	[Bmim]BF4	78.6	13.5	7.95
3	[Hmim]BF4	17.2	10.7	7.02
4	[Omim]BF4	14.3	9.1	6.32
5	[TBA]BF4	6.8	9.6	5.61
6	[TBP]BF4	9.3	8.0	4.74

^aFE_GVL is the faradaic efficiency of GVL.

^b J represents the total current density.