Performance of Polyacrylonitrile-Carbon Nanotubes Composite on Carbon Cloth as Electrode Material for Microbial Fuel Cells

2011 ◽  
Vol 11 (2) ◽  
pp. 1364-1367 ◽  
Author(s):  
Sun-Il Kim ◽  
Jae-Wook Lee ◽  
Sung-Hee Roh
2018 ◽  
Vol 2017 (3) ◽  
pp. 887-895 ◽  
Author(s):  
P. Pusomjit ◽  
O. Chailapakul ◽  
H. Y. Ng ◽  
N. Thepsuparungsikul

Abstract Microbial fuel cells (MFCs) are an ecologically friendly technology that can recover electricity and simultaneously treat wastewater. Among all the influential factors, cathode material and catalyst play a crucial role in electricity production and oxygen reduction. In this study, Pt nanocatalysts deposited on single-walled carbon nanotubes (Pt/SWCNTs) were synthesized by the deposition-precipitation (DP) method under optimal conditions. The results show that DP might be a promising method for the preparation of Pt/SWCNTs due to its simple, cost-effective and time-saving procedure, in addition to being highly efficient at creating small Pt particles (0.9 nm) that were very uniformly distributed. The synthesized Pt/SWCNTs suspension was spray-coated on to carbon cloth and then used as a cathode for MFCs. The electricity generation of MFCs equipped with a Pt/SWCNTs cathode was evaluated in terms of open circuit voltage (0.6954 V), internal resistance (63.3 Ω•m2) and maximum power density (2,022 mW/m2). The chemical oxygen demand removal, biological oxygen demand removal, total dissolved solids removal, total suspended solids removal and silver recovery was satisfactory at 84.5%, 74.0%, 45.7%, 60.0% and 99.0%, respectively. Therefore, Pt/SWCNTs from the DP method was identified as a potential candidate to replace commercial Pt-carbon cloth for MFC cathodes.


2021 ◽  
Vol 9 (12) ◽  
pp. 7726-7735
Author(s):  
Da Liu ◽  
Weicheng Huang ◽  
Qinghuan Chang ◽  
Lu Zhang ◽  
Ruiwen Wang ◽  
...  

TiN nanoarrays, in situ grown on carbon cloth gather 97.2% of the model exoelectrogen Geobacter, greatly enhancing the MFCs' performance. The experimental results and DFT calculation certify the importance of the micro–nano-hierarchical structure.


2014 ◽  
Vol 157 ◽  
pp. 114-119 ◽  
Author(s):  
Tyler Huggins ◽  
Heming Wang ◽  
Joshua Kearns ◽  
Peter Jenkins ◽  
Zhiyong Jason Ren

2020 ◽  
Vol 9 (11) ◽  
pp. 115010
Author(s):  
Yaqiong Wang ◽  
Bin Li ◽  
Xingde Xiang ◽  
Chunlei Guo ◽  
Weishan Li

RSC Advances ◽  
2015 ◽  
Vol 5 (63) ◽  
pp. 50968-50974 ◽  
Author(s):  
Xinhua Tang ◽  
Haoran Li ◽  
Zhuwei Du ◽  
Weida Wang ◽  
How Yong Ng

Polypyrrole hydrogels/carbon nanotubes enhanced electrocatalytic activity, biocompatibility and power density in microbial fuel cells.


Water ◽  
2019 ◽  
Vol 11 (9) ◽  
pp. 1803 ◽  
Author(s):  
Yuko Goto ◽  
Naoko Yoshida

Conventional aerobic treatment of swine wastewater, which generally contains 4500–8200 mg L−1 of organic matter, is energy-consuming. The aim of this study was to assess the application of scaled-up microbial fuel cells (MFCs) with different capacities (i.e., 1.5 L, 12 L, and 100 L) for removing organic matter from swine wastewater. The MFCs were single-chambered, consisting of an anode of microbially reduced graphene oxide (rGO) and an air-cathode of platinum-coated carbon cloth. The MFCs were polarized via an external resistance of 3–10 Ω for 40 days for the 1.5 L-MFC and 120 days for the 12L- and 100 L-MFC. The MFCs were operated in continuous flow mode (hydraulic retention time: 3–5 days). The 100 L-MFC achieved an average chemical oxygen demand (COD) removal efficiency of 52%, which corresponded to a COD removal rate of 530 mg L−1 d−1. Moreover, the 100 L-MFC showed an average and maximum electricity generation of 0.6 and 2.2 Wh m−3, respectively. Our findings suggest that MFCs can effectively be used for swine wastewater treatment coupled with the simultaneous generation of electricity.


Small Methods ◽  
2018 ◽  
Vol 2 (10) ◽  
pp. 1800152 ◽  
Author(s):  
Tianyi Kou ◽  
Yang Yang ◽  
Bin Yao ◽  
Yat Li

2014 ◽  
Vol 39 (33) ◽  
pp. 19148-19155 ◽  
Author(s):  
Jun Zhang ◽  
Jun Li ◽  
Dingding Ye ◽  
Xun Zhu ◽  
Qiang Liao ◽  
...  

Author(s):  
Jie Yang ◽  
Sasan Ghobadian ◽  
Reza Montazami ◽  
Nastaran Hashemi

Microbial fuel cell (MFC) technology is a promising area in the field of renewable energy because of their capability to use the energy contained in wastewater, which has been previously an untapped source of power. Microscale MFCs are desirable for their small footprints, relatively high power density, fast start-up, and environmentally-friendly process. Microbial fuel cells employ microorganisms as the biocatalysts instead of metal catalysts, which are widely applied in conventional fuel cells. MFCs are capable of generating electricity as long as nutrition is provided. Miniature MFCs have faster power generation recovery than macroscale MFCs. Additionally, since power generation density is affected by the surface-to-volume ratio, miniature MFCs can facilitate higher power density. We have designed and fabricated a microscale microbial fuel cell with a volume of 4 μL in a polydimethylsiloxane (PDMS) chamber. The anode and cathode chambers were separated by a proton exchange membrane. Carbon cloth was used for both the anode and the cathode. Shewanella Oneidensis MR-1 was chosen to be the electrogenic bacteria and was inoculated into the anode chamber. We employed Ferricyanide as the catholyte and introduced it into the cathode chamber with a constant flow rate of approximately 50 μL/hr. We used trypticase soy broth as the bacterial nutrition and added it into the anode chamber approximately every 15 hours once current dropped to base current. Using our miniature MFC, we were able to generate a maximum current of 4.62 μA.


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