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Bio-hydrogen and biomass-supported palladium catalyst for energy production and waste-minimisation

Redwood, Mark D (2008)
Ph.D. thesis, University of Birmingham.

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The project objective was to advance the development of the H2 economy by improving biological H2 production in a sustainable way. Pseudo-continuous H2 production was achieved with improved efficiency, via the bacterial fermentation of sugars in a dual-bioreactor (‘upstream system’) comprising a dark fermentation coupled to a photofermentation. Excess biomass from the upstream system was used to recover palladium from solution, producing ‘palladised biomass’ (Bio-Pd(0)), which was useful in the construction of bioinorganic catalytic anodes for the electricity generation from bio-H2 using a polymer electrolyte membrane fuel cell (‘downstream system’). Furthermore, the catalytic usefulness of Bio-Pd(0) was confirmed in several reactions in comparison with other palladised biomasses and with Pd(0) made chemically.

The upstream modules: Escherichia coli dark fermentation and Rhodobacter sphaeroides photofermentation, were investigated and developed separately, before coupling the two stages by the novel application of electrodialysis (accelerated membrane separation). The biorecovery and testing of palladium bionanocatalyst are described, before the production of fuel cell catalyst using waste biomass. The technical challenges and potential benefits of biohydrogen production are discussed and contrasted with those of competing biofuel technologies.

Identification Number/DOI: 10.1039/B616567B

Type of Work:Ph.D. thesis.
Supervisor(s):Macaskie, Lynne E
School/Faculty:Colleges (2008 onwards) > College of Engineering & Physical Sciences
Department:School of Biosciences
Additional Information:

There are journal articles removed from the full text to uphold Copyright permissions. Alternative versions of these articles can be found at
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Other papers written by the author are:

Keywords:biohydrogen, bio-hydrogen, bio-Pd, photofermentation, Rhodobacter,
Subjects:Q Science (General)
Institution:University of Birmingham
Copyright Holders:Mark Redwood
ID Code:3135
This unpublished thesis/dissertation is copyright of the author and/or third parties. The intellectual property rights of the author or third parties in respect of this work are as defined by The Copyright Designs and Patents Act 1988 or as modified by any successor legislation. Any use made of information contained in this thesis/dissertation must be in accordance with that legislation and must be properly acknowledged. Further distribution or reproduction in any format is prohibited without the permission of the copyright holder.
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