Results 201 to 210 of about 4,134 (255)

Biohydrogen facilitated denitrification at biocathode in bioelectrochemical system (BES)

Bioresource Technology, 2014
Reductive removal of nitrate in bioelectrochemical system (BES) at abiotic cathode, biocathode and biohydrogen facilitated biocathode were investigated. It was found that nitrate removal efficiency reached 95% and 59% at the biohydrogen facilitated biocathode and biocathode respectively, while which was only 13% at the abiotic cathode.
Hao, Liu, Qun, Yan, Wei, Shen
openaire   +2 more sources

Bilirubin Oxidase Biocathodes for Ethanol Biofuel Cells

ECS Transactions, 2007
A biological fuel cell is a device that converts biochemical energy into electrical energy using a biocatalyst. The basic principle is that the process of fuel (substrate) oxidation by microorganisms or enzymes in the fuel cells offers electrons and protons for electricity production.
Rodica Duma, Shelley D. Minteer
openaire   +1 more source

Biocathodic performance of bioelectrochemical systems operated at low temperature

Bioresource Technology, 2020
This study investigated the effects of operational temperature on cathodic performances of five bioelectrochemical reactors operated in parallel at 25-7 °C, and on the biofilm microbial community at the end of tests. Compared with the anodic biofilm, the cathodic biofilm has high stability subjected to temperature shift in the aspect of cathode ...
Zhang, G., Su, F., Jiao, Y., Chen, Q., Lee, D.-J.   +4 more
openaire   +3 more sources

Role of Biocathodes in Bioelectrochemical Systems

2017
Environmental damage, depleting fossil fuels and energy security are major factors driving intensive research efforts to develop carbon neutral or carbon negative technologies which can be used to produce electricity and chemicals. Technologies under development to achieve this goal include those based on bioelectrochemical, biological, thermal and ...
V. Prakasam, S. G. F. Bagh, S. Ray, B. Fifield, L. A. Porter, J. A. Lalman   +5 more
openaire   +1 more source

Electron transfer pathways in microbial oxygen biocathodes

Electrochimica Acta, 2010
The ability of some bacteria to enhance the rate of cathodic oxygen reduction to water has been recently discovered, opening the way to an entirely renewable and environmentally friendly concept of biocathode. In this study we reveal that several mechanisms may induce catalytic effects by bacteria.
Freguia, Stefano, Tsujimura, Seiya, Kano, Kenji   +2 more
openaire   +2 more sources

Oxygen transport in composite mediated biocathodes

Electrochimica Acta, 2005
Abstract A numerical simulation of an enzyme-catalyzed oxygen cathode is presented and applied to the analysis of transport limitations in operating electrodes, with the goal of predicting the limits of obtainable cathode current density. Based on macrohomogeneous and thin-film theories, and accounting for dual-substrate enzyme kinetics, the one ...
openaire   +1 more source

Hydrogen production in microbial electrolysis cells with biocathodes

Trends in Biotechnology
Electroautotrophic microbes at biocathodes in microbial electrolysis cells (MECs) can catalyze the hydrogen evolution reaction with low energy demand, facilitating long-term stable performance through specific and renewable biocatalysts. However, MECs have not yet reached commercialization due to a lack of understanding of the optimal microbial strains
Md Tabish Noori, Ruggero Rossi, Bruce E. Logan, Booki Min   +3 more
openaire   +2 more sources

Catalytic role of biogenic gold nanoparticles in improving Cr(VI) removal efficiency of biocathode microbial fuel cells

Journal of Chemical Technology & Biotechnology
Biogenic metal nanoparticle‐modified electrodes have a promising prospect for improving the efficiency of microbial fuel cells (MFCs) for hexavalent chromium (Cr(VI))‐containing wastewater treatment.
Shien Tang, Xinglei Zhuang, Wanqi Zhao, Jinhua Liang, Yang Zeng, F. Xin, Weiliang Dong, Honghua Jia, Xiayuan Wu   +8 more
semanticscholar   +1 more source

Step Towards Enzymatic Bioelectrorefinery: Design of a Ligninolytic Hybrid Air‐Breathing Biocathode

ChemCatChem
Lignins, abundant aromatic biopolymers and one of the major components of lignocellulosic biomass, remain the most underutilized renewable bioresources of aromatics and hydrocarbons on the Earth.
Vladyslav Mishyn, Juliette Floret, Brigitte Chabbert, V. Aguié-Béghin, D. Crônier, N. G. Carducci, David P. Hickey, S. Abdellaoui   +7 more
semanticscholar   +1 more source

Enzyme-catalyzed biocathode in a photoelectrochemical biofuel cell

Journal of Power Sources, 2014
Abstract A novel double-enzyme photoelectrochemical biofuel cell (PEBFC) has been developed by taking glucose dehydrogenase (GDH) and horseradish peroxidase (HRP) as the enzyme of the photoanode and biocathode to catalyze the oxidation of glucose and the reduction of oxygen.
Jing Yang, Donghua Hu, Xiaohuan Zhang, Kunqi Wang, Bin Wang, Bo Sun, Zhidong Qiu   +6 more
openaire   +1 more source