From bio-mineralisation to fuel cells: biomanufacture of Pt and Pd nanocrystals for fuel cell electrode catalyst
From bio-mineralisation to fuel cells: biomanufacture of Pt and Pd nanocrystals for fuel cell electrode catalyst
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DOI：
10.1007/s10529-006-9283-4
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发表时间：
2007-04-01
影响因子：
2.7
通讯作者：
Macaskie, L. E.
中科院分区：
文献类型：
--
作者：
Yong, P.;Paterson-Beedle, M.;Macaskie, L. E.
纳米级铂和钯的生物合成是通过酶介导的溶液中金属离子的沉积来实现的。将生物累积的 Pt(0) 和 Pd(0) 晶体干燥，涂在碳纸上，并作为聚合物电解质膜 (PEM) 燃料电池的阳极进行发电测试。与商用燃料电池级铂催化剂相比，生物铂和生物钯催化剂分别实现了高达 100% 和 81% 的最大发电量。因此，生物矿化可以为燃料电池催化剂的经济生产铺平道路，因为先前的研究表明贵金属可以从废物中生物回收成具有催化活性的生物纳米材料。
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.