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Papers by Bruce Logan

Research paper thumbnail of Comparison of Electrode Reduction Activities of <i>Geobacter sulfurreducens</i> and an Enriched Consortium in an Air-Cathode Microbial Fuel Cell

Applied and Environmental Microbiology, Dec 1, 2008

Research paper thumbnail of Copper current collectors reduce long-term fouling of air cathodes in microbial fuel cells

Environmental science, 2018

Research paper thumbnail of Lactate Oxidation Coupled to Iron or Electrode Reduction by Geobacter sulfurreducens PCA

Applied and Environmental Microbiology, Dec 15, 2011

Research paper thumbnail of Hydrogen production from inexhaustible supplies of fresh and salt water using microbial reverse-electrodialysis electrolysis cells

Proceedings of the National Academy of Sciences of the United States of America, Sep 19, 2011

Research paper thumbnail of Electroactive microorganisms in bioelectrochemical systems

Nature Reviews Microbiology, Mar 7, 2019

Research paper thumbnail of A two-staged system to generate electricity in microbial fuel cells using methane

Chemical Engineering Journal, Nov 1, 2018

Research paper thumbnail of The impact of new cathode materials relative to baseline performance of microbial fuel cells all with the same architecture and solution chemistry

Energy and Environmental Science, 2017

Research paper thumbnail of Impact of cathodic electron acceptor on microbial fuel cell internal resistance

Bioresource Technology, 2020

Research paper thumbnail of High performance flow through microbial fuel cells with anion exchange membrane

Journal of Power Sources, 2020

Research paper thumbnail of The effect of high applied voltages on bioanodes of microbial electrolysis cells in the presence of chlorides

Chemical Engineering Journal, 2021

Research paper thumbnail of Unraveling the contributions of internal resistance components in two-chamber microbial fuel cells using the electrode potential slope analysis

Electrochimica Acta, 2020

Research paper thumbnail of Simultaneously enhancing power density and coulombic efficiency with a hydrophobic Fe–N4/activated carbon air cathode for microbial fuel cells

Journal of Power Sources, 2020

Research paper thumbnail of Balancing Water Dissociation and Current Densities To Enable Sustainable Hydrogen Production with Bipolar Membranes in Microbial Electrolysis Cells

Environmental Science & Technology, 2019

Research paper thumbnail of Regenerable Nickel-Functionalized Activated Carbon Cathodes Enhanced by Metal Adsorption to Improve Hydrogen Production in Microbial Electrolysis Cells

Environmental Science & Technology, 2018

Research paper thumbnail of Copper current collectors reduce long-term fouling of air cathodes in microbial fuel cells

Environmental Science: Water Research & Technology, 2018

Long-term operation of wastewater-fed, microbial fuel cells (MFCs) with cathodes made of activate... more Long-term operation of wastewater-fed, microbial fuel cells (MFCs) with cathodes made of activated carbon and stainless steel (SS) current collectors can result in decreased performance due to cathode fouling.

Research paper thumbnail of Evaluating a multi-panel air cathode through electrochemical and biotic tests

Water research, Jan 10, 2018

To scale up microbial fuel cells (MFCs), larger cathodes need to be developed that can use air di... more To scale up microbial fuel cells (MFCs), larger cathodes need to be developed that can use air directly, rather than dissolved oxygen, and have good electrochemical performance. A new type of cathode design was examined here that uses a "window-pane" approach with fifteen smaller cathodes welded to a single conductive metal sheet to maintain good electrical conductivity across the cathode with an increase in total area. Abiotic electrochemical tests were conducted to evaluate the impact of the cathode size (exposed areas of 7 cm, 33 cm, and 6200 cm) on performance for all cathodes having the same active catalyst material. Increasing the size of the exposed area of the electrodes to the electrolyte from 7 cm to 33 cm (a single cathode panel) decreased the cathode potential by 5%, and a further increase in size to 6200 cm using the multi-panel cathode reduced the electrode potential by 55% (at 0.6 A m), in a 50 mM phosphate buffer solution (PBS). In 85 L MFC tests with the l...

Research paper thumbnail of Assessment of a metal-organic framework catalyst in air cathode microbial fuel cells over time with different buffers and solutions

Bioresource technology, 2017

Metal-organic framework (MOF) on activated carbon (AC) enhanced the performance of cathodes but l... more Metal-organic framework (MOF) on activated carbon (AC) enhanced the performance of cathodes but longevity needs to be considered in the presence of metal chelators or ligands, such as phosphate, present in wastewaters. MOF catalysts on AC initially produced 2.78±0.08Wm(-2), but power decreased by 26% after eight weeks in microbial fuel cells using a 50mM phosphate buffer (PBS) and acetate due to decreased cathode performance. However, power was still 41% larger than that of the control AC (no MOF). Power generation using domestic wastewater was initially 0.73±0.01Wm(-2), and decreased by 21% over time, with power 53% larger than previous reports, although changes in wastewater composition were a factor in performance. Adding phosphate salts to the wastewater did not affect the catalyst performance over time. While MOF catalysts are therefore initially adversely affected by chelators, performance remains enhanced compared to plain AC.

Research paper thumbnail of Energy harvesting from organic liquids in micro-sized microbial fuel cells

Research paper thumbnail of Microbial Electrolysis Cells for High-yield Biohydrogen Production from Fermentable Substrates

Report Nr.: Schriften …, 2010

Research paper thumbnail of Copper anode corrosion affects power generation in microbial fuel cells

Journal of Chemical Technology & Biotechnology, 2013

Non‐corrosive, carbon‐based materials are usually used as anodes in microbial fuel cells (MFCs). ... more Non‐corrosive, carbon‐based materials are usually used as anodes in microbial fuel cells (MFCs). In some cases, however, metals have been used that can corrode (e.g. copper) or that are corrosion resistant (e.g. stainless steel, SS). Corrosion could increase current through galvanic (abiotic) current production or by increasing exposed surface area, or decrease current due to generation of toxic products from corrosion. In order to directly examine the effects of using corrodible metal anodes, MFCs with Cu were compared with reactors using SS and carbon cloth anodes. MFCs with Cu anodes initially showed high current generation similar to abiotic controls, but subsequently they produced little power (2 mW m‐2). Higher power was produced with microbes using SS (12 mW m‐2) or carbon cloth (880 mW m‐2) anodes, with no power generated by abiotic controls. These results demonstrate that copper is an unsuitable anode material, due to corrosion and likely copper toxicity to microorganisms. ...

Research paper thumbnail of Comparison of Electrode Reduction Activities of <i>Geobacter sulfurreducens</i> and an Enriched Consortium in an Air-Cathode Microbial Fuel Cell

Applied and Environmental Microbiology, Dec 1, 2008

Research paper thumbnail of Copper current collectors reduce long-term fouling of air cathodes in microbial fuel cells

Environmental science, 2018

Research paper thumbnail of Lactate Oxidation Coupled to Iron or Electrode Reduction by Geobacter sulfurreducens PCA

Applied and Environmental Microbiology, Dec 15, 2011

Research paper thumbnail of Hydrogen production from inexhaustible supplies of fresh and salt water using microbial reverse-electrodialysis electrolysis cells

Proceedings of the National Academy of Sciences of the United States of America, Sep 19, 2011

Research paper thumbnail of Electroactive microorganisms in bioelectrochemical systems

Nature Reviews Microbiology, Mar 7, 2019

Research paper thumbnail of A two-staged system to generate electricity in microbial fuel cells using methane

Chemical Engineering Journal, Nov 1, 2018

Research paper thumbnail of The impact of new cathode materials relative to baseline performance of microbial fuel cells all with the same architecture and solution chemistry

Energy and Environmental Science, 2017

Research paper thumbnail of Impact of cathodic electron acceptor on microbial fuel cell internal resistance

Bioresource Technology, 2020

Research paper thumbnail of High performance flow through microbial fuel cells with anion exchange membrane

Journal of Power Sources, 2020

Research paper thumbnail of The effect of high applied voltages on bioanodes of microbial electrolysis cells in the presence of chlorides

Chemical Engineering Journal, 2021

Research paper thumbnail of Unraveling the contributions of internal resistance components in two-chamber microbial fuel cells using the electrode potential slope analysis

Electrochimica Acta, 2020

Research paper thumbnail of Simultaneously enhancing power density and coulombic efficiency with a hydrophobic Fe–N4/activated carbon air cathode for microbial fuel cells

Journal of Power Sources, 2020

Research paper thumbnail of Balancing Water Dissociation and Current Densities To Enable Sustainable Hydrogen Production with Bipolar Membranes in Microbial Electrolysis Cells

Environmental Science & Technology, 2019

Research paper thumbnail of Regenerable Nickel-Functionalized Activated Carbon Cathodes Enhanced by Metal Adsorption to Improve Hydrogen Production in Microbial Electrolysis Cells

Environmental Science & Technology, 2018

Research paper thumbnail of Copper current collectors reduce long-term fouling of air cathodes in microbial fuel cells

Environmental Science: Water Research & Technology, 2018

Long-term operation of wastewater-fed, microbial fuel cells (MFCs) with cathodes made of activate... more Long-term operation of wastewater-fed, microbial fuel cells (MFCs) with cathodes made of activated carbon and stainless steel (SS) current collectors can result in decreased performance due to cathode fouling.

Research paper thumbnail of Evaluating a multi-panel air cathode through electrochemical and biotic tests

Water research, Jan 10, 2018

To scale up microbial fuel cells (MFCs), larger cathodes need to be developed that can use air di... more To scale up microbial fuel cells (MFCs), larger cathodes need to be developed that can use air directly, rather than dissolved oxygen, and have good electrochemical performance. A new type of cathode design was examined here that uses a "window-pane" approach with fifteen smaller cathodes welded to a single conductive metal sheet to maintain good electrical conductivity across the cathode with an increase in total area. Abiotic electrochemical tests were conducted to evaluate the impact of the cathode size (exposed areas of 7 cm, 33 cm, and 6200 cm) on performance for all cathodes having the same active catalyst material. Increasing the size of the exposed area of the electrodes to the electrolyte from 7 cm to 33 cm (a single cathode panel) decreased the cathode potential by 5%, and a further increase in size to 6200 cm using the multi-panel cathode reduced the electrode potential by 55% (at 0.6 A m), in a 50 mM phosphate buffer solution (PBS). In 85 L MFC tests with the l...

Research paper thumbnail of Assessment of a metal-organic framework catalyst in air cathode microbial fuel cells over time with different buffers and solutions

Bioresource technology, 2017

Metal-organic framework (MOF) on activated carbon (AC) enhanced the performance of cathodes but l... more Metal-organic framework (MOF) on activated carbon (AC) enhanced the performance of cathodes but longevity needs to be considered in the presence of metal chelators or ligands, such as phosphate, present in wastewaters. MOF catalysts on AC initially produced 2.78±0.08Wm(-2), but power decreased by 26% after eight weeks in microbial fuel cells using a 50mM phosphate buffer (PBS) and acetate due to decreased cathode performance. However, power was still 41% larger than that of the control AC (no MOF). Power generation using domestic wastewater was initially 0.73±0.01Wm(-2), and decreased by 21% over time, with power 53% larger than previous reports, although changes in wastewater composition were a factor in performance. Adding phosphate salts to the wastewater did not affect the catalyst performance over time. While MOF catalysts are therefore initially adversely affected by chelators, performance remains enhanced compared to plain AC.

Research paper thumbnail of Energy harvesting from organic liquids in micro-sized microbial fuel cells

Research paper thumbnail of Microbial Electrolysis Cells for High-yield Biohydrogen Production from Fermentable Substrates

Report Nr.: Schriften …, 2010

Research paper thumbnail of Copper anode corrosion affects power generation in microbial fuel cells

Journal of Chemical Technology & Biotechnology, 2013

Non‐corrosive, carbon‐based materials are usually used as anodes in microbial fuel cells (MFCs). ... more Non‐corrosive, carbon‐based materials are usually used as anodes in microbial fuel cells (MFCs). In some cases, however, metals have been used that can corrode (e.g. copper) or that are corrosion resistant (e.g. stainless steel, SS). Corrosion could increase current through galvanic (abiotic) current production or by increasing exposed surface area, or decrease current due to generation of toxic products from corrosion. In order to directly examine the effects of using corrodible metal anodes, MFCs with Cu were compared with reactors using SS and carbon cloth anodes. MFCs with Cu anodes initially showed high current generation similar to abiotic controls, but subsequently they produced little power (2 mW m‐2). Higher power was produced with microbes using SS (12 mW m‐2) or carbon cloth (880 mW m‐2) anodes, with no power generated by abiotic controls. These results demonstrate that copper is an unsuitable anode material, due to corrosion and likely copper toxicity to microorganisms. ...

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