Structure design and performance comparison of large-scale marine sediment microbial fuel cells in lab and real sea as power source to drive monitoring instruments for long-term work

Zhou, Changyang; Fu, Yubin; Zhang, Haoshuang; Chen, Wei; Liu, Zhi; Liu, Zhaohui; Ying, Minju; Zai, Xuerong

doi:10.1007/s11581-017-2251-2

Cited by 19 publications

(5 citation statements)

References 30 publications

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“…Recent advancements have been developed to operate the SMFCs in the parallel and vertical series to enhance the efficiency and SMFCs launching at large scale. The employment of SMFCs stacking model is brand new advancement for SMFCs launching at field level (Zhou et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Bioremediation and Electricity Generation by Using Open and Closed Sediment Microbial Fuel Cells

et al. 2019

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The industrial contamination of marine sediments with mercury, silver, and zinc in Penang, Malaysia was studied with bio-remediation coupled with power generation using membrane less open (aerated) and closed (non-aerated) sediment microbial fuel cells (SMFCs). The prototype for this SMFC is very similar to a natural aquatic environment because it is not stimulated externally and an oxygen sparger is inserted in the cathode chamber to create the aerobic environment in the open SMFC and no oxygen supplied in the closed SMFC. The open and closed SMFCs were showed the maximum voltage generation 300.5 mV (77.75 mW/m2) and 202.7 mV (45.04 (mW/m2), respectively. The cyclic voltammetry showed the oxidation peak in open SMFCs at +1.9 μA and reduction peak at -0.3 μA but in closed SMFCs oxidation and reduction peaks were noted at +1.5 μA and -1.0 μA, respectively. The overall impedance (anode, cathode and solution) of closed SMFCs was higher than open SMFCs. The charge transfer impedance showed that the rates of substrate oxidation and reduction were very low in the closed SMFCs than open SMFCs. The Nyquist arc indicated that O2 act as electron acceptor in the open SMFCs and CO2 in the closed SMFCs. The highest remediation efficiency of toxic metals [Hg (II) ions, Zn (II) ions, and Ag (I) ions] in the open SMFCs were 95.03%, 86.69%, and 83.65% in closed SMFCs were 69.53%, 66.57%, and 65.33%, respectively, observed during 60–80 days. The scanning electron microscope and 16S rRNA analysis showed diverse exoelectrogenic community in the open SMFCs and closed SMFCs. The results demonstrated that open SMFCs could be employed for the power generation and bioremediation of pollutants.

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Section: Introductionmentioning

confidence: 99%

Bioremediation and Electricity Generation by Using Open and Closed Sediment Microbial Fuel Cells

et al. 2019

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“…A large‐scale MSMFC (MSMFC‐sea) designed by Yubin Fu's team, whose anodic surface area is about 9.42 m 2 , has driven temperature‐depth sensor (TD, 6 V) to operate for more than 17 months on the ocean floor in Jiaozhou Bay, and its output power is only 427 mW. The maximum output power of composite modified MSMFC with the same anode size as MSMFC‐sea will reach 8.38 W. On the other hand, the size of modified anode will be reduced to 1/20 of the MSMFC‐sea anode in order to achieve the same power.…”

Section: Resultsmentioning

confidence: 99%

A novel anode modified by 1,5-dihydroxyanthraquinone/multiwalled carbon nanotubes composite in marine sediment microbial fuel cell and its electrochemical performance

Zhang

Zhou

et al. 2018

Int J Energy Res

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A novel anode modified by 1,5-dihydroxyanthraquinone/multiwalled carbon nanotubes (DAQ/MWCNTs) composite was fabricated in order to improve its electrochemical performance in marine sediment microbial fuel cell (MSMFC).The number of microbes on the DAQ/MWCNTs modified anode is 18.02 times of blank anode, and it has the best electrochemical performance compared with other anodes. Its exchange current density and biofilm capacitance are 1472.15 times and 18.66 times higher than that of blank anode, respectively. The maximum power density of composite modified MSMFC (890.12 mW·m −2 ) is 3.01-fold of blank cell (296.11 mW·m −2 ). The mechanism analysis of DAQ/ MWCNTs shows that DAQ, as an electron-transfer mediator, can accelerate electron transfer to benefit the electrochemical performance of anode. This provides a new anode modification method for the development of high power MSMFC as long-term power source to drive monitoring instruments.

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“…However, the existing battery technologies cannot meet the requirement of long term power supply of equipment on the seafloor . So, the exploitation of new power applied in marine environment has become more and more urgent .…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, the MSMFCs have great potential in the field of marine new energy with the advantages of low cost, continuity, environmental protection and high efficiency. For this reason, our laboratory has utilized the MSMFCs on ocean floor as a sustainable power source to drive the monitoring instruments for long‐term working .…”

Section: Introductionmentioning

confidence: 99%

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Effect of Amino Acid Addition in Marine Sediment on Electrochemical Performance in Microbial Fuel Cells

Guo

Zai

et al. 2018

Fuel Cells

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As exogenous substances, L‐methionine, L‐threonine and L‐lysine were added into the marine sediment to construct marine sediments microbial fuel cells (MSMFCs) and the effects on the anodic electrochemical activity were following investigated. The results show that the addition of the amino acid increases anodic electrochemical activity, and the anode in L‐methionine modified sediment presents better performance than others. The specific capacitance of anode in L‐methionine modified sediment (192.00 F cm−2) is 4.0 times bigger than that of anode in unmodified sediment, generating a maximum current density of 2.560 × 10−4 A cm−2. In their Tafel curves, the anodic exchange current density in the L‐methionine modified sediment (2.14 × 10−6 A cm−2) is 93.04 times higher than that of unmodified anode, which suggests that the electrochemical activity of redox, anti‐polarization ability and electron transfer kinetic activity are improved significantly. The MSMFC with L‐methionine modified sediment generates the higher power densities than the blank (143.2 mW m−2 versus 59.2 mW m−2), and its current also increases by 2.8 times. This demonstrates that L‐methionine provides a practical advantage on the anodic electrochemical and battery performance. Therefore, amino acids are good tools to evaluate its power generation of the MSMFCs.

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Structure design and performance comparison of large-scale marine sediment microbial fuel cells in lab and real sea as power source to drive monitoring instruments for long-term work

Cited by 19 publications

References 30 publications

Bioremediation and Electricity Generation by Using Open and Closed Sediment Microbial Fuel Cells

Bioremediation and Electricity Generation by Using Open and Closed Sediment Microbial Fuel Cells

A novel anode modified by 1,5-dihydroxyanthraquinone/multiwalled carbon nanotubes composite in marine sediment microbial fuel cell and its electrochemical performance

Effect of Amino Acid Addition in Marine Sediment on Electrochemical Performance in Microbial Fuel Cells

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