Hydrogen production in a microbial electrolysis cell with nickel-based gas diffusion cathodes
نویسندگان
چکیده
منابع مشابه
Hydrogen gas production in a microbial electrolysis cell by electrohydrogenesis
Electrohydrogenesis is a bio-electrochemical process where organic material is microbially oxidized to protons and electrons, which in turn are reduced to form hydrogen gas (H2). The reactor in which these reactions occur is termed a microbial electrolysis cell (MEC). The microorganisms that colonize the anode are known as electricigens and behave as biological catalysts, significantly reducing...
متن کاملHydrogen production with nickel powder cathode catalysts in microbial electrolysis cells
Although platinum is commonly used as catalyst on the cathode in microbial electrolysis cells (MEC), non-precious metal alternatives are needed to reduce costs. Cathodes were constructed using a nickel powder (0.5–1 mm) and their performance was compared to conventional electrodes containing Pt (0.002 mm) in MECs and electrochemical tests. The MEC performance in terms of coulombic efficiency, c...
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Microbial electrolysis cell (MEC) is one of the promising and cutting-edge technologies for generating hydrogen from wastewater through biodegradation of organic waste by exoelectrogenic microbes. In the MECs, the operational parameters, such as applied voltage (Eap), anode surface area, anode-cathode distance, and N2/CO2 volume ratio have a significant impact on the hydrogen yield and producti...
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Microbial electrolysis cells (MECs) are often examined for hydrogen production using nonsustainable phosphate buffered solutions (PBS), although carbonate buffers have been shown to work in other bioelectrochemical systems with a platinum (Pt) catalyst. Stainless steel (SS) has been shown to be an effective catalyst for hydrogen evolution in MECs, but it has not been tested with carbonate buffe...
متن کاملHydrogen production from proteins via electrohydrogenesis in microbial electrolysis cells.
Microorganisms can produce hydrogen gas (H(2)) at high rates by fermentation of carbohydrates, but not from proteins. However, it is possible to produce H(2) at high rates and yields from proteins by electrohydrogenesis in microbial electrolysis cells (MECs). Hydrogen gas was generated using bovine serum albumin (BSA, 700 mg/L) in a single-chamber MEC at a rate of Q=0.42+/-0.07 m(3)/m(3)/day an...
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ژورنال
عنوان ژورنال: Journal of Power Sources
سال: 2010
ISSN: 0378-7753
DOI: 10.1016/j.jpowsour.2010.03.061