Non-precious metal doped carbon nanofiber air-cathode for Microbial Fuel Cells application: Oxygen reduction reaction characterization and long-term validation

2017 ◽  
Vol 228 ◽  
pp. 380-388 ◽  
Author(s):  
Pau Bosch-Jimenez ◽  
Sandra Martinez-Crespiera ◽  
David Amantia ◽  
Mónica Della Pirriera ◽  
Isabel Forns ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Microbial Fuel Cells ◽  
Precious Metal ◽  
Carbon Nanofiber ◽  
Reduction Reaction ◽  
Air Cathode ◽  
Metal Doped

scholarly journals Nanostructured gas diffusion layer to improve direct oxygen reduction reaction in Air-Cathode Single-Chamber Microbial Fuel Cells

2022 ◽  
Vol 334 ◽  
pp. 04012
Author(s):  
Giulia Massaglia ◽  
Eve Verpoorten ◽  
Candido F. Pirri ◽  
Marzia Quaglio
Keyword(s):  
Fuel Cells ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Microbial Fuel Cells ◽  
Oxygen Diffusion ◽  
Energy Recovery ◽  
Gas Diffusion ◽  
Reduction Reaction ◽  
Air Cathode ◽  
The One

The aim of this work is the development of new nanostructured-gas-diffusion-layer (GDL) to improve the overall behaviour of Air-Cathode Single-Chamber-Microbial-Fuel-Cells (SCMFCs). The design of new nanostructured-GDL allowed exploiting all nanofibers ’intrinsic properties, such as high surface ratio to volume, high porosity, achieving thus a good oxygen diffusion into the proximity of catalyst layer, favouring thus the direct oxygen-reduction-reaction (ORR). Nanostructured-GDLs were prepared by electrospinning process, using a layer-by-layer deposition to collect 2 nanofibers’ mats. The first layer was made of cellulose nanofibers able to promote oxygen diffusion into SCMFC. The second layer, placed outwards, was based on polyvinyl-fluoride (PVDF) nanofibers to prevent the electrolyte leakage. This nanostructured-GDL plays a pivotal role to improve the overall performance of Air-Cathode-SCMFCs. A maximum current density of 20 mA m-2 was obtained, which is higher than the one reached with commercial-GDL, used as reference material. All results were analysed in terms of energy recovery parameter, defined as ratio of generated power integral and the internal volume of devices, evaluating the overall SCMFC performance. SCMFCs with a nanostructured-GDL showed an energy recovery equal to 60.83 mJ m-3, which was one order of magnitude higher than the one obtained with commercial-GDL, close to 3.92 mJ m-3.

High stability pyrolyzed vitamin B12 as a non-precious metal catalyst of oxygen reduction reaction in microbial fuel cells

RSC Advances ◽  
2013 ◽  
Vol 3 (35) ◽  
pp. 15375 ◽  
Author(s):  
Chen-Hao Wang ◽  
Chin-Tsan Wang ◽  
Hsin-Chih Huang ◽  
Sun-Tang Chang ◽  
Fan-Ying Liao
Keyword(s):  
Fuel Cells ◽  
Oxygen Reduction Reaction ◽  
Vitamin B12 ◽  
Oxygen Reduction ◽  
Microbial Fuel Cells ◽  
Precious Metal ◽  
High Stability ◽  
Reduction Reaction ◽  
Metal Catalyst

scholarly journals Preparation and Application of Fe-N Co-Doped GNR@CNT Cathode Oxygen Reduction Reaction Catalyst in Microbial Fuel Cells

Nanomaterials ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 377
Author(s):  
Man Zhang ◽  
Zhaokun Ma ◽  
Huaihe Song
Keyword(s):  
Fuel Cells ◽  
Carbon Nanotube ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Microbial Fuel Cells ◽  
Precious Metal ◽  
Reduction Reaction ◽  
Graphene Nanoribbon ◽  
Metal Catalyst ◽  
Multiwall Carbon Nanotube

Through one-step pyrolysis, non-noble-metal oxygen reduction reaction (ORR) electrocatalysts were constructed from ferric trichloride, melamine, and graphene nanoribbon@carbon nanotube (GNR@CNT), in which a portion of the multiwall carbon nanotube is unwrapped/unzipped radially, and thus graphene nanoribbon is exposed. In this study, Fe-N/GNR@CNT materials were used as an air-cathode electrocatalyst in microbial fuel cells (MFCs) for the first time. The Fe-N/C shows similar power generation ability to commercial Pt/C, and its electron transfer number is 3.57, indicating that the ORR process primarily occurs with 4-electron. Fe species, pyridinic-N, graphitic-N, and oxygen-containing groups existing in GNR@CNT frameworks are likely to endow the electrocatalysts with good ORR performance, suggesting that a GNR@CNT-based carbon supporter would be a good candidate for the non-precious metal catalyst to replace Pt-based precious metal.

Development of high stable Pt-based ORR catalyst over Mn-modified polyaniline-based carbon nanofiber

2021 ◽  
Author(s):  
Hong Zhu ◽  
Qingjun Chen ◽  
Jinghua Yu ◽  
Qian Zhou ◽  
Fanghui Wang ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Proton Exchange Membrane ◽  
Carbon Nanofiber ◽  
Carbon Support ◽  
Reduction Reaction ◽  
Proton Exchange ◽  
Key Factors ◽  
Exchange Membrane

The corrosion of carbon support is one of key factors causing deactivation of Pt-based oxygen reduction reaction (ORR) catalysts for proton exchange membrane fuel cells. In this work, a highly...

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