title: From bio-mineralisation to fuel cells: biomanufacture of Pt and Pd nanocrystals for fuel cell electrode catalyst.
abstract: Biosynthesis of nano-scale platinum and palladium was achieved via enzymatically-mediated deposition of metal ions from solution. The bio-accumulated Pt(0) and Pd(0) crystals were dried, applied onto carbon paper and tested as anodes in a polymer electrolyte membrane (PEM) fuel cell for power production. Up to 100% and 81% of the maximum power generation was achieved by the bio-Pt and bio-Pd catalysts, respectively, compared to commercial fuel cell grade Pt catalyst. Hence, biomineralisation could pave the way for economical production of fuel cell catalysts since previous studies have shown that precious metals can be biorecovered from wastes into catalytically active bionanomaterials.
authors.affiliation: Unit of Functional Bionanomaterials, School of Biosciences, University of Birmingham, Edgbaston, Birmingham, UK.
authors.forename: P
authors.initials: P
authors.lastname: Yong
authors.forename: M
authors.initials: M
authors.lastname: Paterson-Beedle
authors.forename: I P
authors.initials: IP
authors.lastname: Mikheenko
authors.forename: L E
authors.initials: LE
authors.lastname: Macaskie
mesh_terms: D001688:Biological Products / Q000737:chemistry*; D002384:Catalysis; D003460:Crystallization / Q000379:methods; D045285:Desulfovibrio desulfuricans / Q000378:metabolism*; D011211:Electric Power Supplies; D004563:Electrochemistry / Q000379:methods*; D008903:Minerals / Q000737:chemistry / Q000378:metabolism; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure; D010165:Palladium / Q000737:chemistry* / Q000378:metabolism; D010984:Platinum / Q000737:chemistry* / Q000378:metabolism
chemical_list: D001688:Biological Products; D008903:Minerals; D010984:Platinum; D010165:Palladium