Biogenic Palladium Nanoparticles for Improving Bioelectricity Generation in Microbial Fuel Cells
Biogenic Palladium Nanoparticles for Improving Bioelectricity Generation in Microbial Fuel Cells
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DOI：
10.1109/mems46641.2020.9056268
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发表时间：
2020-01
期刊：
影响因子：
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通讯作者：
Mehdi Tahernia;M. Mohammadifar;S. Feng;Seokheun Choi
中科院分区：
文献类型：
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作者：
Mehdi Tahernia;M. Mohammadifar;S. Feng;Seokheun Choi
含有原位生物钯纳米颗粒的电活性细菌使微生物燃料电池(MFC)的功率密度增加了75%。钯纳米粒子是由细菌通过生物电化学还原合成的，并保持与细胞膜的结合，促进了细菌细胞外电子在细胞-电极界面的转移。这项工作彻底改变了人们对细菌在微生物代谢过程中如何生物合成金属纳米颗粒的认识，并引入了一种新的自下而上的方法，以更环保和更具成本效益的方式制造用于可再生能源生产的微生物电化学设备。
Electroactive bacteria with in-situ biogenic palladium nanoparticles increased power density of a microbial fuel cell (MFC) by 75%. The palladium nanoparticles were biosynthesized through bioelectrochemical reduction by the bacteria and remained bound to the cell membrane, facilitating bacterial extracellular electron transfer at the cell-electrode interface. This work revolutionizes knowledge of how bacteria biosynthesize metallic nanoparticles during microbial metabolism and introduces a novel bottom-up approach to fabricate a microbial electrochemical device for renewable energy production in a more eco-friendly and cost-effective way.