Electrochemically synthesized sulfur-doped graphene as a superior metal-free cathodic catalyst for oxygen reduction reaction in microbial fuel cells

RSC Advances ◽  
2016 ◽  
Vol 6 (105) ◽  
pp. 103446-103454 ◽  
Author(s):  
Thi Hiep Han ◽  
Nazish Parveen ◽  
Sajid Ali Ansari ◽  
Jun Ho Shim ◽  
Anh Thi Nguyet Nguyen ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Oxygen Reduction Reaction ◽  
Microbial Fuel Cell ◽  
Microbial Fuel Cells ◽  
Reduction Reaction ◽  
Cathode Catalyst ◽  
Metal Free ◽  
Doped Graphene ◽  
Efficient Alternative ◽  
Cathodic Catalyst

Electrochemically synthesized S-GN was proved to be an efficient alternative cathode catalyst to Pt/C in microbial fuel cell.

CeO2 doped Pt/C as an efficient cathode catalyst for an air-cathode single-chamber microbial fuel cell

RSC Advances ◽  
2016 ◽  
Vol 6 (31) ◽  
pp. 25877-25881 ◽  
Author(s):  
Ling Li ◽  
Mingkun Wang ◽  
Ning Cui ◽  
Yuedi Ding ◽  
Qingling Feng ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Microbial Fuel Cell ◽  
Reduction Reaction ◽  
Cathode Catalyst ◽  
Air Cathode ◽  
Single Chamber ◽  
Cathode Catalysts ◽  
First Time

Incorporation of nanophase ceria into the cathode catalyst Pt/C was used as alternative cathode catalysts for the oxygen reduction reaction in an air-cathode single-chamber microbial fuel cell (SCMFC) for the first time.

scholarly journals Hydrothermal Synthesis of Nanostructured Manganese Oxide as Cathodic Catalyst in a Microbial Fuel Cell Fed with Leachate

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Yuan Haoran ◽  
Deng Lifang ◽  
Lu Tao ◽  
Chen Yong
Keyword(s):  
Fuel Cell ◽  
Oxygen Reduction ◽  
Microbial Fuel Cell ◽  
Cost Effective ◽  
Reduction Reaction ◽  
Reduction Peak ◽  
Cathode Catalyst ◽  
Air Cathode ◽  
Noticeable Increase ◽  
Cathodic Catalyst

Much effort has been devoted to the synthesis of novel nanostructured MnO2materials because of their unique properties and potential applications as cathode catalyst in Microbial fuel cell. Hybrid MnO2nanostructures were fabricated by a simple hydrothermal method in this study. Their crystal structures, morphology, and electrochemical characters were carried out by FESEM, N2-adsorption-desorption, and CV, indicating that the hydrothermally synthesized MnO2(HSM) was structured by nanorods of high aspect ratio and multivalve nanoflowers and more positive than the naturally synthesized MnO2(NSM), accompanied by a noticeable increase in oxygen reduction peak current. When the HSM was employed as the cathode catalyst in air-cathode MFC which fed with leachate, a maximum power density of 119.07 mW/m2was delivered, 64.68% higher than that with the NSM as cathode catalyst. Furthermore, the HSM via a 4-e pathway, but the NSM via a 2-e pathway in alkaline solution, and as 4-e pathway is a more efficient oxygen reduction reaction, the HSM was more positive than NSM. Our study provides useful information on facile preparation of cost-effective cathodic catalyst in air-cathode MFC for wastewater treatment.

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.

scholarly journals Novel Porous Nitrogen Doped Graphene/Carbon Black Composites as Efficient Oxygen Reduction Reaction Electrocatalyst for Power Generation in Microbial Fuel Cell

Nanomaterials ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. 836 ◽  
Author(s):  
Yuan Liu ◽  
Zhimei Liu ◽  
Hong Liu ◽  
Meiling Liao
Keyword(s):  
Power Generation ◽  
Fuel Cell ◽  
Carbon Black ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Microbial Fuel Cell ◽  
Reduction Reaction ◽  
Nitrogen Doped ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene

To improve the power generation of a microbial fuel cell (MFC), a porous nitrogen-doped graphene/carbon black (NG/CB) composite as efficient oxygen reduction reaction (ORR) electrocatalyst was successfully synthesized by pyrolyzing graphene oxide (GO) encapsulated CB with cetyltrimethyl ammonium bromide as a bridge. This concept-to-proof synthesis can be considered as a template-like method. Based on this method, one composite named as NG/CB-10 was acquired using the optimized GO-to-CB mass ratio of 10:1. Electrochemical tests demonstrate that NG/CB-10 can catalyze ORR in neutral-pH medium through a four-electron pathway with positively shifted the onset potential, the enhanced current density and reduced charge transfer resistance. CB addition also prolongs the stability of NG/CB-10. The enhancement in electrochemical performance of NG/CB-10 was attributed to the enlarged surface area, abundant mesopores and high content of pyridinic nitrogen. The maximum power density of MFC equipping NG/CB-10 as cathode electrocatalyst reached 936 mW·m−2, which was 26% higher than that of NG and equal to that of platinum/carbon. The cost of NG/CB-10 was reduced by 25% compared with that of NG. This work provides a novel method to synthesize promising ORR electrocatalyst for MFC in the future.

Evaluation of the novel Pd CeO2-NR electrocatalyst supported on N-doped graphene for the Oxygen Reduction Reaction and its use in a Microbial Fuel Cell

2019 ◽  
Vol 414 ◽  
pp. 103-114 ◽  
Author(s):  
J.C. Carrillo-Rodríguez ◽  
S. García-Mayagoitia ◽  
R. Pérez-Hernández ◽  
M.T. Ochoa-Lara ◽  
F. Espinosa-Magaña ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Microbial Fuel Cell ◽  
Reduction Reaction ◽  
The Novel ◽  
Doped Graphene

Effect of Two Anodic Materials and RuxMoySez as a Cathode Catalyst on the Performance of Two Singlw Chamber Microbial Fuel Cells

2013 ◽  
Vol 16 (3) ◽  
pp. 163-170 ◽  
Author(s):  
A.L. Vázquez-Larios ◽  
O. Solorza-Feria ◽  
R. de G. González-Huerta ◽  
M.T. Ponce-Noyola ◽  
J. Barrera-Cortés ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Oxygen Reduction Reaction ◽  
Microbial Fuel Cells ◽  
Reduction Reaction ◽  
Carbon Cloth ◽  
Cathode Catalyst ◽  
Anodic Chamber ◽  
Left And Right ◽  
The Cost ◽  
Cathodic Catalyst

The objectives of this work were to evaluate (i) the application of a bimetallic chalcogenide, RuxMoySez, as an oxygen reduction reaction (ORR) catalyst and (ii) the effect of the type of two anodic materials on the performance of two microbial fuel cells (MFCs). A single chamber MFC-T was built with a plexiglass cylinder, the two extreme circular faces were fitted with PEM-cathode assemblage, i.e., left and right faces. The anode consisted of 65 small triangular pieces of graphite filling the anodic chamber. A second MFC-C had a ‘sandwich’ arrangement anode-PEM-cathode. The cathodes were made of ?exible carbon-cloth containing catalysts loading of 1mg/cm2 RuxMoySez or 0.5mg/cm2 Pt. Power derived by cell T with cathode chalcogenide catalyst was 43% inferior to that of a similar cell with Pt although the cost of the first catalyst is significantly lower than that of Pt, i.e., 73% lower. Finally, application of graphite anode made of small triangular pieces significantly improved the performance of a MFC-T that used RuxMoySez as a cathodic catalyst for ORR.

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