TY - JOUR
T1 - Facile scalable manufacture of improved electrodes using structured surface coatings of nickel oxide as cathode and reduced graphene oxide as anode for evaluation in a prototype development on microbial fuel cells
AU - González Vázquez, Omar Francisco
AU - Frausto Reyes, Claudio
AU - Ortiz Morales, Martín
AU - Kamaraj, Sathish Kumar
AU - Moreno Virgen, Ma del Rosario
AU - Hernández Montoya, Virginia
N1 - Publisher Copyright:
© 2022 Hydrogen Energy Publications LLC
PY - 2022/8/15
Y1 - 2022/8/15
N2 - Improvement of the microbial fuel cell performance is highly required in energy production associated with domestic sewage treatment. For this objective, metal electrodes coated with specific materials for anode and cathode were manufactured. Materials such as reduced graphene oxide (rGO) as an anode, with high electrical conductivity, and structured nickel oxide (sNiO), which act as air cathode, could be the key to obtaining substantial improvements in the production of energy and treatment of domestic sewage. In this work, simple methods were developed to coat the stainless steel meshes with rGO and sNiO, used in MFC prototypes. The results show that the methodologies developed for the coating of the electrodes aid to improve the performance of the MFC in the delivery of potential, current density and power density up to 220%, 140% and 700% respectively, compared to the blank stainless steel electrodes; while the COD levels in the water purified by the MFC with covered electrodes reached a decrease of 36% compared to the same system without covered electrodes. Additionally, the built MFCs prototypes were tested as a power supply for a digital clock and an LED light.
AB - Improvement of the microbial fuel cell performance is highly required in energy production associated with domestic sewage treatment. For this objective, metal electrodes coated with specific materials for anode and cathode were manufactured. Materials such as reduced graphene oxide (rGO) as an anode, with high electrical conductivity, and structured nickel oxide (sNiO), which act as air cathode, could be the key to obtaining substantial improvements in the production of energy and treatment of domestic sewage. In this work, simple methods were developed to coat the stainless steel meshes with rGO and sNiO, used in MFC prototypes. The results show that the methodologies developed for the coating of the electrodes aid to improve the performance of the MFC in the delivery of potential, current density and power density up to 220%, 140% and 700% respectively, compared to the blank stainless steel electrodes; while the COD levels in the water purified by the MFC with covered electrodes reached a decrease of 36% compared to the same system without covered electrodes. Additionally, the built MFCs prototypes were tested as a power supply for a digital clock and an LED light.
KW - Electrodeposition
KW - Power source prototype
KW - Reduced graphene oxide
KW - Structured NiO
KW - Water cleaning
UR - http://www.scopus.com/inward/record.url?scp=85136297790&partnerID=8YFLogxK
U2 - 10.1016/j.ijhydene.2022.06.311
DO - 10.1016/j.ijhydene.2022.06.311
M3 - Artículo
AN - SCOPUS:85136297790
SN - 0360-3199
VL - 47
SP - 30248
EP - 30261
JO - International Journal of Hydrogen Energy
JF - International Journal of Hydrogen Energy
IS - 70
ER -