Projects per year
Abstract
Bio-manufacturing of nano-scale palladium was achieved via enzymatically-mediated deposition of Pd from solution using Desulfovibrio desulfuricans, Escherichia coli and Cupriavidus metallidurans. Dried 'Bio-Pd' materials were sintered, applied onto carbon papers and tested as anodes in a proton exchange membrane (PEM) fuel cell for power production. At a Pd(0) loading of 25% by mass the fuel cell power using Bio-Pd( D. desulfuricans ) (positive control) and Bio-Pd( E. coli ) (negative control) was ~140 and ~30 mW respectively. Bio-Pd( C. metallidurans ) was intermediate between these with a power output of ~60 mW. An engineered strain of E. coli (IC007) was previously reported to give a Bio-Pd that was >3-fold more active than Bio-Pd of the parent E. coli MC4100 (i.e. a power output of >110 mW). Using this strain, a mixed metallic catalyst was manufactured from an industrial processing waste. This 'Bio-precious metal' ('Bio-PM') gave ~68% of the power output as commercial Pd(0) and ~50% of that of Bio-Pd( D. desulfuricans ) when used as fuel cell anodic material. The results are discussed in relation to integrated bioprocessing for clean energy.
Original language | English |
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Journal | Biotechnology Letters |
DOIs | |
Publication status | Published - 24 Aug 2010 |
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Dive into the research topics of 'Biorefining of precious metals from wastes: an answer to manufacturing of cheap nanocatalysts for fuel cells and power generation via an integrated biorefinery?'. Together they form a unique fingerprint.Projects
- 2 Finished
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Functional bionanomaterials and novel processing for targeted catalytic applications
Macaskie, L., Shannon, I. & Wood, J.
Engineering & Physical Science Research Council
8/01/07 → 7/10/10
Project: Research Councils
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Resubmission novel bionanocatalysts and nanomagnets from solutions and metal bearing wastes
Macaskie, L. & Wood, J.
Biotechnology & Biological Sciences Research Council, CETECH INNOVATION LTD
15/11/06 → 28/02/10
Project: Research