Layered corrugated electrode macrostructures boost microbial bioelectrocatalysis

Chen, Shouhui; He, Guowei; Liu, Qin; Harnisch, Falk; Zhou, Yan; Chen, Yu; Hanif, Muddasir; Wang, Suqin; Peng, Xinwen; Hou, Haoqing; Schröder, Uwe

doi:10.1039/c2ee23344d

Cited by 188 publications

(131 citation statements)

References 28 publications

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“…With non-porous materials such as glassy carbon and graphite rods or plates current densities reported were about 1 mA cm -2 at the maximum [46][47][48]. The maximal current density of 12.5 mA cm -2 observed in this study exceeds those by more than one decade.…”

Section: 6mentioning

confidence: 56%

“…The maximal current density of 12.5 mA cm -2 observed in this study exceeds those by more than one decade. Current densities of 12.87 mA cm -2 (ice-templated titanium-based ceramics, [49]) and 39 mA cm -2 (layered corrugated carbon, [46]) have been reported for highly porous anodes. Highly porous electrodes have a significant larger surface area compared to the smooth graphite rod used in this study.…”

Section: 6mentioning

confidence: 99%

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Anodic respiration of Pseudomonas putida KT2440 in a stirred-tank bioreactor

Hintermayer

Krömer

et al. 2016

Biochemical Engineering Journal

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Section: 6mentioning

confidence: 56%

Section: 6mentioning

confidence: 99%

Anodic respiration of Pseudomonas putida KT2440 in a stirred-tank bioreactor

Hintermayer

Krömer

et al. 2016

Biochemical Engineering Journal

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“…With respect to the first goal, the power density of the EFCs could be increased to 10 mW cm À 2 or higher, using a combination of newly developed high-electrical conductivity and high-surface-area nanomaterials as electrodes, such as graphene foams 36 or carbonized nanofibre aerogels 37,38 . The performance can also be improved using better mediators 5 , more active enzymes or enzymatic complexes 39 , and optimized enzyme ratios predicted by in silicon models 40 .…”

Section: Discussionmentioning

confidence: 99%

A high-energy-density sugar biobattery based on a synthetic enzymatic pathway

Zhu

Tam²,

Sun³

et al. 2014

Nat Commun

240

194

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High-energy-density, green, safe batteries are highly desirable for meeting the rapidly growing needs of portable electronics. The incomplete oxidation of sugars mediated by one or a few enzymes in enzymatic fuel cells suffers from low energy densities and slow reaction rates. Here we show that nearly 24 electrons per glucose unit of maltodextrin can be produced through a synthetic catabolic pathway that comprises 13 enzymes in an air-breathing enzymatic fuel cell. This enzymatic fuel cell is based on non-immobilized enzymes that exhibit a maximum power output of 0.8 mW cm À 2 and a maximum current density of 6 mA cm À 2 , which are far higher than the values for systems based on immobilized enzymes. Enzymatic fuel cells containing a 15% (wt/v) maltodextrin solution have an energy-storage density of 596 Ah kg À 1 , which is one order of magnitude higher than that of lithium-ion batteries. Sugar-powered biobatteries could serve as next-generation green power sources, particularly for portable electronics.

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“…[281] Microbial electrolysis is an emerging method based on electroactive microorganisms which form a biofilm on electrodes. [282,283] Efficient members for microbial electrolysis are Shewanella or Geobacter. Microbial electrolysis allows high theoretical conversion yield of organic substrate.…”

Section: Challenges Involved In Increasing Biohydrogen Production By mentioning

confidence: 99%

Biohydrogen for a New Generation of H₂/O₂ Biofuel Cells: A Sustainable Energy Perspective

et al. 2014

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Among sustainable alternatives to fossil fuel, proton exchange membrane fuel cells are promising devices that deliver electricity from hydrogen and oxygen, producing only water. The transformation of the fuel and oxidant however relies on rare‐metal catalysts. H2/O2 enzymatic biofuel cells thus emerge as sustainable biotechnological devices in which chemical catalysts are replaced by hydrogenases at the anode and multicopper oxidases at the cathode. This review discusses the recent breakthroughs and the limitations in all the components of H2/O2 biofuel cells: 1) Catalytic mechanisms involved in multicopper oxidases and hydrogenases, in addition to the new potential of enzymes from the biodiversity pool, which exhibit outstanding properties. 2) The molecular basis for oriented enzyme immobilization on the electrochemical interfaces as a prerequisite for a fast direct electron‐transfer rate. 3) The requirement for 3D networks to enhance current densities. 4) The production of H2 from biomass. 5) The history of H2/O2 biofuel cells and recent devices, which also highlights the remaining issues that will allow the use of such devices in low‐power applications.

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Layered corrugated electrode macrostructures boost microbial bioelectrocatalysis

Cited by 188 publications

References 28 publications

Anodic respiration of Pseudomonas putida KT2440 in a stirred-tank bioreactor

Anodic respiration of Pseudomonas putida KT2440 in a stirred-tank bioreactor

A high-energy-density sugar biobattery based on a synthetic enzymatic pathway

Biohydrogen for a New Generation of H₂/O₂ Biofuel Cells: A Sustainable Energy Perspective

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Layered corrugated electrode macrostructures boost microbial bioelectrocatalysis

Cited by 188 publications

References 28 publications

Anodic respiration of Pseudomonas putida KT2440 in a stirred-tank bioreactor

Anodic respiration of Pseudomonas putida KT2440 in a stirred-tank bioreactor

A high-energy-density sugar biobattery based on a synthetic enzymatic pathway

Biohydrogen for a New Generation of H2/O2 Biofuel Cells: A Sustainable Energy Perspective

Contact Info

Product

Resources

About

Biohydrogen for a New Generation of H₂/O₂ Biofuel Cells: A Sustainable Energy Perspective