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A Gibbs free energy-based assessment of microbial electrocatalysis

(2017) TRENDS IN BIOTECHNOLOGY. 35(5). p.393-406
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Abstract
The use of microbial catalysts for electrode reactions enables novel bioremediation and bioproduction processes. To understand the electrochemical performance of the electrode reactions, knowledge of their thermodynamics is essential. We elaborate here on the Growth Reference System (GRS), simplifying thermodynamic calculations in the aforementioned context to, for example, demonstrate that cathodic bioprocesses generally suffer from higher overpotentials than do anodic processes. Abiotic hydrogen production cannot be thermodynamically excluded for any of the cathodic microbial electrosynthesis processes described thus far. Predictions for maximum biomass production correlated to electron flow are in line with experimental observations. We include a comprehensive set of thermodynamic and electrochemical data to support calculations relevant to the field of microbial electrocatalysis.
Keywords
FUEL-CELL PERFORMANCE, WASTE-WATER TREATMENT, ELECTRICITY-GENERATION, ELECTRON-TRANSFER, GEOBACTER-SULFURREDUCENS, BIOELECTROCHEMICAL SYSTEMS, BIOCATALYZED ELECTROLYSIS, PRACTICAL IMPLEMENTATION, PERCHLORATE REDUCTION, ACETOBACTERIUM-WOODII

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Citation

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Chicago
Gildemyn, Sylvia, Rene A Rozendal, and Korneel Rabaey. 2017. “A Gibbs Free Energy-based Assessment of Microbial Electrocatalysis.” Trends in Biotechnology 35 (5): 393–406.
APA
Gildemyn, S., Rozendal, R. A., & Rabaey, K. (2017). A Gibbs free energy-based assessment of microbial electrocatalysis. TRENDS IN BIOTECHNOLOGY, 35(5), 393–406.
Vancouver
1.
Gildemyn S, Rozendal RA, Rabaey K. A Gibbs free energy-based assessment of microbial electrocatalysis. TRENDS IN BIOTECHNOLOGY. 2017;35(5):393–406.
MLA
Gildemyn, Sylvia, Rene A Rozendal, and Korneel Rabaey. “A Gibbs Free Energy-based Assessment of Microbial Electrocatalysis.” TRENDS IN BIOTECHNOLOGY 35.5 (2017): 393–406. Print.
@article{8523563,
  abstract     = {The use of microbial catalysts for electrode reactions enables novel bioremediation and bioproduction processes. To understand the electrochemical performance of the electrode reactions, knowledge of their thermodynamics is essential. We elaborate here on the Growth Reference System (GRS), simplifying thermodynamic calculations in the aforementioned context to, for example, demonstrate that cathodic bioprocesses generally suffer from higher overpotentials than do anodic processes. Abiotic hydrogen production cannot be thermodynamically excluded for any of the cathodic microbial electrosynthesis processes described thus far. Predictions for maximum biomass production correlated to electron flow are in line with experimental observations. We include a comprehensive set of thermodynamic and electrochemical data to support calculations relevant to the field of microbial electrocatalysis.},
  author       = {Gildemyn, Sylvia and Rozendal, Rene A and Rabaey, Korneel},
  issn         = {0167-7799},
  journal      = {TRENDS IN BIOTECHNOLOGY},
  keyword      = {FUEL-CELL PERFORMANCE,WASTE-WATER TREATMENT,ELECTRICITY-GENERATION,ELECTRON-TRANSFER,GEOBACTER-SULFURREDUCENS,BIOELECTROCHEMICAL SYSTEMS,BIOCATALYZED ELECTROLYSIS,PRACTICAL IMPLEMENTATION,PERCHLORATE REDUCTION,ACETOBACTERIUM-WOODII},
  language     = {eng},
  number       = {5},
  pages        = {393--406},
  title        = {A Gibbs free energy-based assessment of microbial electrocatalysis},
  url          = {http://dx.doi.org/10.1016/j.tibtech.2017.02.005},
  volume       = {35},
  year         = {2017},
}

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