Enhancement of acetate production in hydrogen-mediated microbial electrosynthesis reactors by addition of silica nanoparticles

Bioresources and Bioprocessing

Table 1 Performance of most acetate-producing MES (Q _Surface: Surface production rate; Q _Volumetric: Volumetric production rate.)

Cathode material	Inoculum	V_catholyte (L)	J (A·m⁻²)	Q _Surface (g·m⁻²·d⁻¹)	Q _Volumetric (g·L⁻¹·d⁻¹)	Titer (g·L⁻¹)	CE (%)	Refs
Chitosan-coated carbon cloth	Sporomusa ovata	0.2	0.47	13.51	0.317	0.59	86	Zhang et al. 2013
Pr0.5BSCF-CF	Mixed culture	–	− 5.6	96	0.24	7.31	73	Tian et al. 2020
CF with fluidized GAC	Mixed culture	0.28	− 4	–	0.14	3.9	65	Dong et al. 2018
Mo₂C-CF	Mixed culture	0.28	− 15	87.5	0.15	4.5	55	Huang et al. 2020
Graphite granules	Mixed culture	0.075	–	–	1.04	10.5	69	Marshall et al. 2013
rGO-CF	Mixed culture	0.28	− 4.9	68	0.17	7.1	77	Song et al. 2017
CNTs–RVC	Mixed culture	0.25	37	195	0.03	1.65	78	Jourdin et al. 2014
CF	Mixed culture	0.25	− 5	19	0.06	1.29	58	Patil et al. 2015
Carbon felt	Mixed culture	0.35	5	20.4	0.58	13.5	61	Gildemyn et al. 2015
VITO–CoRE	Mixed culture	0.5	0.069	46.7	0.14	4.97	45.5	Mohanakrishna et al. 2018
Graphene-carbon felt	Sporomusa ovata	0.25	− 0.23	62.4	0.124	1.88	83	Aryal et al. 2016
CNTs-coated Porous Ni hollow fiber	Sporomusa ovata	0.125	0.332	14.82	0.172	0.084	83	Bian et al. 2018
Carbon felt	Mixed culture	0.2	5	11.5	1.06	5.7	63	Arends et al. 2017
SS	Mixed culture	0.6	39	102	2.14	18.5	44	This work