Hydrogen production in a single chamber microbial electrolysis cell lacking a membrane.

By D. Call, B. Logan. Environmental Science and Technology, 2008

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An overview of cathode material and catalysts suitable for generating hydrogen in microbial electrolysis cell (2013, methodology): “8 V with a cathodic hydrogen recovery rH2, cat 1⁄4 96% and an overall energy efficiency of hEþS 1⁄4 75% by using Pt catalyst on carbon cloth in a single chamber MEC of volume 28 ml [24].”
Ni foam cathode enables high volumetric H2 production in a microbial electrolysis cell (2010, background): “[5] Call D, Logan BE.”
Towards practical implementation of bioelectrochemical wastewater treatment. (2008, background): “Membrane-less operation appears to be an obvious solution to the problem arising from membrane pH gradients [ 19 ,29] and would simultaneously offer a cost advantage by eliminating an expensive component from the BES.”
Scaling up microbial fuel cells and other bioelectrochemical systems (2010, background): “The development and success of membraneless MFCs and MECs shows that in some situations, only a single chamber is needed (Call and Logan 2008; Liu and Logan 2004).”
Biocathode in microbial electrolysis cell; Present status and future prospects (2015, neutral): “7 A/m(2) in another membraneless MEC operated in the batch mode and coated with 5 g/m(2) load of platinum [43].”