Application of Low-Cost Transition Metal Based Co0.5Zn0.5Fe2O4 as Oxygen Reduction Reaction Catalyst for Improving Performance of Microbial Fuel Cell

MRS Advances ◽  
2018 ◽  
Vol 3 (53) ◽  
pp. 3171-3179 ◽  
Author(s):  
Indrasis Das ◽  
Md. T. Noori ◽  
Gourav Dhar Bhowmick ◽  
M.M. Ghangrekar
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Power Density ◽  
Microbial Fuel Cells ◽  
Low Cost ◽  
Reduction Reaction ◽  
Current Response ◽  
Cathode Catalyst ◽  
Cathodic Current ◽  
Transfer Resistance

ABSTRACTOverpotential losses on cathode during oxygen reduction reaction (ORR) causes serious performance depletion in microbial fuel cells (MFCs). High cost of existing platinum based noble catalysts is one of the main reason for growing interest in the research of low cost sustainable cathode catalysts to improve ORR in order to enhance power generation from MFCs. The present study demonstrates application of low-cost bimetallic ferrite, Co0.5Zn0.5Fe2O4, as a cathode catalyst in MFC. The electrochemical tests of cathode having this catalyst revealed an excellent cathodic current response of 25.76 mA with less charge transfer resistance of 0.7 mΩ, showing remarkable catalytic activity. The MFC using this catalyst on cathode could generate a power density of 172.1 ± 5.2 mW/m2, which was found to be about 10 times higher than the power density of 15.2 ± 1.3 mW/m2 obtained from a MFC using only acetelyne black (AB) on cathode and noted even higher than the power density produced by MFC with Pt/C cathode (151.3 ± 2.8 mW/m2). In addition, the wastewater treatment in terms of chemical oxygen demand (COD) removal efficiency of MFC with Co0.5Zn0.5Fe2O4 on cathode was found to be better (87 %) among the tested MFCs. Hence, the results obtained from this study illustrates the applicability of Co0.5Zn0.5Fe2O4 as an excellent and suitable cathode catalyst for scaling up of MFCs.

Iron chelates as low-cost and effective electrocatalyst for oxygen reduction reaction in microbial fuel cells

2014 ◽  
Vol 39 (12) ◽  
pp. 6462-6469 ◽  
Author(s):  
Minh-Toan Nguyen ◽  
Barbara Mecheri ◽  
Alessandra D'Epifanio ◽  
Tommy Pepè Sciarria ◽  
Fabrizio Adani ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Microbial Fuel Cells ◽  
Low Cost ◽  
Reduction Reaction ◽  
Iron Chelates

scholarly journals Iron based catalysts from novel low-cost organic precursors for enhanced oxygen reduction reaction in neutral media microbial fuel cells

2016 ◽  
Vol 9 (7) ◽  
pp. 2346-2353 ◽  
Author(s):  
Carlo Santoro ◽  
Alexey Serov ◽  
Lydia Stariha ◽  
Mounika Kodali ◽  
Jonathan Gordon ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Microbial Fuel Cells ◽  
Low Cost ◽  
Reduction Reaction ◽  
Neutral Media ◽  
Organic Precursors ◽  
Iron Based ◽  
Iron Based Catalysts

Fe-based catalysts based on ricobendazole and niclosamide showed higher performance compared to Pt (20–25%) and AC (90–99%) and more durability in long terms operations.

Nitrogen and sulfur dual-doped graphene as an efficient metal-free electrocatalyst for the oxygen reduction reaction in microbial fuel cells

2019 ◽  
Vol 43 (24) ◽  
pp. 9389-9395 ◽  
Author(s):  
Cuie Zhao ◽  
Jinxiang Li ◽  
Yan Chen ◽  
Jianyu Chen
Keyword(s):  
Fuel Cells ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Power Density ◽  
Microbial Fuel Cells ◽  
Reduction Reaction ◽  
Maximum Power ◽  
Maximum Power Density ◽  
Metal Free ◽  
Doped Graphene

In this study, nitrogen- and sulfur-codoped graphene (N/S-G) was prepared and used as an efficient metal-free electrocatalyst for the oxygen reduction reaction (ORR) in microbial fuel cells (MFCs), exhibiting a maximum power density of 1368 mW m−2, relatively higher than that of commercial Pt/C.

Carbon-Supported Spinel Nanoparticle MnCo2O4 as a Cathode Catalyst towards Oxygen Reduction Reaction in Dual-Chamber Microbial Fuel Cell

2015 ◽  
Vol 68 (6) ◽  
pp. 987 ◽  
Author(s):  
Dengping Hu ◽  
Guangyao Zhang ◽  
Juan Wang ◽  
Qin Zhong
Keyword(s):  
Carbon Black ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Microbial Fuel Cells ◽  
Coupling Effect ◽  
Reaction Pathway ◽  
Reduction Reaction ◽  
Cathode Catalyst ◽  
Dual Chamber

The poor kinetics of oxygen reduction reaction (ORR) in neutral media and ambient temperature limit the performance of microbial fuel cells (MFCs). So higher-performing, low-cost oxygen reduction catalysts play a key role in power output. Through direct nanoparticle nucleation and growth on carbon black, a nanocomposite of manganese cobaltite and carbon black (in situ-MnCo2O4/C) was synthesized via a facile hydrothermal method. Subsequently, the in situ-MnCo2O4/C samples were characterized. The results show that the MnCo2O4 nanoparticles with a crystalline spinel structure are well dispersed on carbon black. Electrochemical measurements reveal that in situ-MnCo2O4/C demonstrates excellent ORR catalytic activity, which may account for the synergetic coupling effect between MnCo2O4 and carbon black. The ORR on as-prepared in situ-MnCo2O4/C hybrid mainly favours a direct 4-electron reaction pathway in alkaline solution. Moreover, in situ-MnCo2O4/C was used as an alternative catalyst for ORR in dual-chamber MFC. The obtained maximum power density is 545 mW m–2, which is far higher than that of the plain cathode (Pmax = 214 mW m–2) and slightly lower than that of commercial Pt/C catalyst (Pmax = 689 mW m–2). This study implies that in situ-MnCo2O4/C nanocomposite is an efficient and cost-effective cathode catalyst for practical MFC application.

The Effect of Carbon Particle-Size on N-Doped Carbon Catalyst for Oxygen Reduction Reaction in Microbial Fuel Cells

2012 ◽  
Vol 178-181 ◽  
pp. 495-498 ◽  
Author(s):  
Xin Xin Shi ◽  
Yu Jie Feng ◽  
Jia Liu ◽  
Qiao Yang ◽  
Nan Qi Ren
Keyword(s):  
Particle Size ◽  
Size Effect ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Microbial Fuel Cells ◽  
Low Cost ◽  
Carbon Particle ◽  
Particle Size Effect ◽  
Reduction Reaction ◽  
Carbon Powder

Microbial fuel cell (MFC) is a new technology that combines wastewater treatment and bioenergy production. Platinum, as a commonly used catalyst for oxygen reduction reaction (ORR) in MFC, has hindered the development of MFC as the result of its high-cost. Consequently, developing effective and low-cost catalysts for ORR has aroused extensive research interest. The particle size effect is known to play an important role for catalyst. Three kinds of carbon powders with different grain sizes were chosen to prepare nitrogen-doped carbon powder (NDCP) as a low-cost catalyst for oxygen reduction in MFCs. The result showed that particle-size effect might be attributed to morphological changes of the relative concentration of surface atoms and nitrogen functional groups. As a result, the power density of NDCP with carbon 8000 mesh (739.2 mW m-2) was much higher than another two catalysts by 40% (carbon 10000 mesh, 413.1 mW m-2) and 60% (carbon 3000 mesh, 248.5 mW m-2). In addition, carbon 8000 mesh exhibited a bit higher coulombic efficiency than carbon 10000 mesh and carbon 3000 mesh.

scholarly journals Application of Low-Cost Cu–Sn Bimetal Alloy as Oxygen Reduction Reaction Catalyst for Improving Performance of the Microbial Fuel Cell

MRS Advances ◽  
2018 ◽  
Vol 3 (13) ◽  
pp. 663-668 ◽  
Author(s):  
Md. T Noori ◽  
Gaurav Dhar Bhowmick ◽  
Bikash R Tiwari ◽  
M.M. Ghangrekar ◽  
C.K. Mukhrejee
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Power Density ◽  
Coulombic Efficiency ◽  
Low Cost ◽  
Oxygen Demand ◽  
Reduction Reaction ◽  
Chemical Oxygen Demand Removal ◽  
Direct Electric Current ◽  
Oxygen Reduction Reaction Catalyst

ABSTRACTIn this experiment, a new bimetal low–cost Cu–Sn alloy was synthesized and it was tested as catalyst for oxygen reduction reaction (ORR) in MFC and the results were compared with the commercially available Pt-C catalyst. Cyclic voltammetry for evaluating ORR of the test cathode containing Cu-Sn catalysts under oxygen saturated environment displayed large ORR current peak, showing less overpotential demand for ORR. Maximum power density of 457 mW/m2 obtained from MFC using Cu–Sn catalyst, was found to be slightly higher than the power density of 446 mW/m2 demonstrated by MFC using Pt based cathode. Biochemical conversion of organic matter to direct electric current in Cu–Sn based MFC occurred at a coulombic efficiency of 55.8%, while demonstrating 92% of chemical oxygen demand removal. This study demonstrated application of low cost Cu–Sn bimetal alloy as excellent ORR catalyst in MFC and would be very helpful to commission larger MFCs for field applications to harvest energy in the form of direct electricity from wastewaters while offering wastewater treatment.

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