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.

Metal-free activated biochar as an oxygen reduction reaction catalyst in single chamber microbial fuel cells

2020 ◽  
Vol 462 ◽  
pp. 228183 ◽  
Author(s):  
Tommy Pepè Sciarria ◽  
Maida Aysla Costa de Oliveira ◽  
Barbara Mecheri ◽  
Alessandra D'Epifanio ◽  
Jillian L. Goldfarb ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Microbial Fuel Cells ◽  
Reduction Reaction ◽  
Single Chamber ◽  
Metal Free ◽  
Activated Biochar ◽  
Oxygen Reduction Reaction Catalyst

Improved oxygen reduction reaction activity of three-dimensional porous N-doped graphene from a soft-template synthesis strategy in microbial fuel cells

RSC Advances ◽  
2016 ◽  
Vol 6 (107) ◽  
pp. 105211-105221 ◽  
Author(s):  
Yuan Liu ◽  
Xiao-Jun Jin ◽  
Ai-Xue Tuo ◽  
Hong Liu
Keyword(s):  
Fuel Cells ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Microbial Fuel Cells ◽  
Three Dimensional ◽  
Reduction Reaction ◽  
Soft Template ◽  
Synthesis Strategy ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene

Porous nitrogen-doped graphene can serve as a promising oxygen reduction reaction catalyst in microbial fuel cells for power generation.

scholarly journals Platinum Group Metal-Free Catalysts for Oxygen Reduction Reaction: Applications in Microbial Fuel Cells

Catalysts ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 475
Author(s):  
Maida Aysla Costa de Oliveira ◽  
Alessandra D’Epifanio ◽  
Hitoshi Ohnuki ◽  
Barbara Mecheri
Keyword(s):  
Fuel Cells ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Microbial Fuel Cells ◽  
Platinum Group Metal ◽  
Reduction Reaction ◽  
Cathode Side ◽  
Metal Free ◽  
Group Metal ◽  
Platinum Group

Scientific and technological innovation is increasingly playing a role for promoting the transition towards a circular economy and sustainable development. Thanks to its dual function of harvesting energy from waste and cleaning up waste from organic pollutants, microbial fuel cells (MFCs) provide a revolutionary answer to the global environmental challenges. Yet, one key factor that limits the implementation of larger scale MFCs is the high cost and low durability of current electrode materials, owing to the use of platinum at the cathode side. To address this issue, the scientific community has devoted its research efforts for identifying innovative and low cost materials and components to assemble lab-scale MFC prototypes, fed with wastewaters of different nature. This review work summarizes the state-of the-art of developing platinum group metal-free (PGM-free) catalysts for applications at the cathode side of MFCs. We address how different catalyst families boost oxygen reduction reaction (ORR) in neutral pH, as result of an interplay between surface chemistry and morphology on the efficiency of ORR active sites. We particularly review the properties, performance, and applicability of metal-free carbon-based materials, molecular catalysts based on metal macrocycles supported on carbon nanostructures, M-N-C catalysts activated via pyrolysis, metal oxide-based catalysts, and enzyme catalysts. We finally discuss recent progress on MFC cathode design, providing a guidance for improving cathode activity and stability under MFC operating conditions.

Synthesis of boron doped graphene for oxygen reduction reaction in fuel cells

2012 ◽  
Vol 22 (2) ◽  
pp. 390-395 ◽  
Author(s):  
Zhen-Huan Sheng ◽  
Hong-Li Gao ◽  
Wen-Jing Bao ◽  
Feng-Bin Wang ◽  
Xing-Hua Xia
Keyword(s):  
Fuel Cells ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Boron Doped ◽  
Doped Graphene
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