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Nitrogen-doped graphene/carbon felt bioanode enhances power generation in microbial fuel cells
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DOI：10.1016/j.elecom.2026.108172.png)
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Abstract
En 中文
• N-rGO/CF bioanode achieves a record power density of 2418 mW m−2. • One-step hydrothermal method integrates GO reduction and N-doping simultaneously. • Charge transfer resistance drops 83.1% relative to bare carbon felt anode. • COD removal reaches 89.4% with 34.7% coulombic efficiency after 120 h.
Keywords:
Microbial fuel cell
Nitrogen-doped graphene
Extracellular electron transfer
Renewable energy
Wastewater treatment
BET
Brunauer-Emmett-Teller surface area analysis
CE
Coulombic efficiency
CF
Carbon felt
COD
Chemical oxygen demand
CPE
Constant-phase element
CV
Cyclic voltammetry
EET
Extracellular electron transfer
EDX
Energy-dispersive X-ray spectroscopy
EIS
Electrochemical impedance spectroscopy
FE-SEM
Field-emission scanning electron microscopy
FTIR
Fourier-transform infrared spectroscopy
GO
Graphene oxide
MFCs
Microbial fuel cell
N-rGO/CF
Nitrogen-doped reduced graphene oxide on carbon felt
OCV
Open-circuit voltage
ORR
Oxygen reduction reaction
PBS
Phosphate buffer saline
rGO
Reduced graphene oxide
rGO/CF
Reduced graphene oxide on carbon felt
XPS
X-ray photoelectron spectroscopy
XRD
X-ray diffraction
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