Nitrogen doped graphene supported α-MnO2 nanorods for efficient ORR in a microbial fuel cell

RSC Advances ◽  
2016 ◽  
Vol 6 (111) ◽  
pp. 110091-110101 ◽  
Author(s):  
Rajeev K. Gautam ◽  
Himaghna Bhattacharjee ◽  
S. Venkata Mohan ◽  
Anil Verma
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Modular Design ◽  
Nitrogen Doped ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene

Efficient ORR electrocatalyst and modular design of MFC.

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.

Toward New Fuel Cell Support Materials: A Theoretical and Experimental Study of Nitrogen-Doped Graphene

ChemSusChem ◽  
2014 ◽  
Vol 7 (9) ◽  
pp. 2609-2620 ◽  
Author(s):  
Min Ho Seo ◽  
Sung Mook Choi ◽  
Eun Ja Lim ◽  
In Hye Kwon ◽  
Joon Kyo Seo ◽  
...  
Keyword(s):  
Experimental Study ◽  
Fuel Cell ◽  
Support Materials ◽  
Nitrogen Doped ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene ◽  
Cell Support
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