A three-dimensional nitrogen-doped graphene aerogel-activated carbon composite catalyst that enables low-cost microfluidic microbial fuel cells with superior performance

2016 ◽  
Vol 4 (41) ◽  
pp. 15913-15919 ◽  
Author(s):  
Yang Yang ◽  
Tianyu Liu ◽  
Qiang Liao ◽  
Dingding Ye ◽  
Xun Zhu ◽  
...  

Low-cost electrodes were used in miniature microbial fuel cells to generate a remarkably high volumetric power density.

2016 ◽  
Vol 3 (8) ◽  
pp. 1600097 ◽  
Author(s):  
Yang Yang ◽  
Tianyu Liu ◽  
Xun Zhu ◽  
Feng Zhang ◽  
Dingding Ye ◽  
...  

RSC Advances ◽  
2016 ◽  
Vol 6 (107) ◽  
pp. 105211-105221 ◽  
Author(s):  
Yuan Liu ◽  
Xiao-Jun Jin ◽  
Ai-Xue Tuo ◽  
Hong Liu

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


2015 ◽  
Vol 8 (3) ◽  
pp. 869-875 ◽  
Author(s):  
Bo Wang ◽  
Wael Al Abdulla ◽  
Dianlong Wang ◽  
X. S. Zhao

LFP@N-GA with (010) facet oriented LFP NPs embedded in N-GA provides both rapid Li+ and electron pathways in the electrode as well as short Li+ diffusion length in LFP crystals.


Ionics ◽  
2019 ◽  
Vol 26 (1) ◽  
pp. 13-22 ◽  
Author(s):  
Qiang Lv ◽  
Rensheng Song ◽  
Bo Wang ◽  
He Zhu ◽  
Jin Xu ◽  
...  

Energies ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 574
Author(s):  
Emilius Sudirjo ◽  
Paola Y. Constantino Diaz ◽  
Matteo Cociancich ◽  
Rens Lisman ◽  
Christian Snik ◽  
...  

Large-scale implementation of (plant) microbial fuel cells is greatly limited by high electrode costs. In this work, the potential of exploiting electrochemically active self-assembled biofilms in fabricating three-dimensional bioelectrodes for (plant) microbial fuel cells with minimum use of electrode materials was studied. Three-dimensional robust bioanodes were successfully developed with inexpensive polyurethane foams (PU) and activated carbon (AC). The PU/AC electrode bases were fabricated via a water-based sorption of AC particles on the surface of the PU cubes. The electrical current was enhanced by growth of bacteria on the PU/AC bioanode while sole current collectors produced minor current. Growth and electrochemical activity of the biofilm were shown with SEM imaging and DNA sequencing of the microbial community. The electric conductivity of the PU/AC electrode enhanced over time during bioanode development. The maximum current and power density of an acetate fed MFC reached 3 mA·m−2 projected surface area of anode compartment and 22 mW·m−3 anode compartment. The field test of the Plant-MFC reached a maximum performance of 0.9 mW·m−2 plant growth area (PGA) at a current density of 5.6 mA·m−2 PGA. A paddy field test showed that the PU/AC electrode was suitable as an anode material in combination with a graphite felt cathode. Finally, this study offers insights on the role of electrochemically active biofilms as natural enhancers of the conductivity of electrodes and as transformers of inert low-cost electrode materials into living electron acceptors.


2019 ◽  
Vol 142 ◽  
pp. 111594 ◽  
Author(s):  
Meihua Hu ◽  
Xin Li ◽  
Juan Xiong ◽  
Lizhen Zeng ◽  
Yingshan Huang ◽  
...  

RSC Advances ◽  
2016 ◽  
Vol 6 (74) ◽  
pp. 69973-69976 ◽  
Author(s):  
Xuan Zhang ◽  
Nan Hao ◽  
Xiaoya Dong ◽  
Saibo Chen ◽  
Zhou Zhou ◽  
...  

Pt nanoparticle-decorated nitrogen-doped 3D graphene aerogel (PtNPs/3DNGA) composites were prepared through a one-pot hydrothermal approach and show superior catalytic activity in methanol oxidation.


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