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首页> 外文会议>11th fuel cell science, engineering, and technology conference 2013 >USING SHEWANELLA ONEIDENSIS MR1 AS A BIOCATALYST IN A MICROSCALE MICROBIAL FUEL CELL
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USING SHEWANELLA ONEIDENSIS MR1 AS A BIOCATALYST IN A MICROSCALE MICROBIAL FUEL CELL

机译：在微生物微生物燃料电池中使用SHEWANELLA ONEIDENSIS MR1作为生物催化剂

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Microbial fuel cell (MFC) technology is a promising area in the field of renewable energy because of their capability to use the energy contained in wastewater, which has been previously an untapped source of power. Microscale MFCs are desirable for their small footprints, relatively high power density, fast startup, and environmentally-friendly process. Microbial fuel cells employ microorganisms as the biocatalysts instead of metal catalysts, which are widely applied in conventional fuel cells. MFCs are capable of generating electricity as long as nutrition is provided. Miniature MFCs have faster power generation recovery than macroscale MFCs. Additionally, since power generation density is affected by the surface-to-volume ratio, miniature MFCs can facilitate higher power density. We have designed and fabricated a microscale microbial fuel cell with a volume of 4 μL in a polydimethylsiloxane (PDMS) chamber. The anode and cathode chambers were separated by a proton exchange membrane. Carbon cloth was used for both the anode and the cathode. Shewanella Oneidensis MR-I was chosen to be the electrogenic bacteria and was inoculated into the anode chamber. We employed Ferricyanide as the catholyte and introduced it into the cathode chamber with a constant flow rate of approximately 50 μL/hr. We used trypticase soy broth as the bacterial nutrition and added it into the anode chamber approximately every 15 hours once current dropped to base current. Using our miniature MFC, we were able to generate a maximum current of 4.62 μA.
机译：微生物燃料电池（MFC）技术在可再生能源领域是一个有前途的领域，因为它们具有利用废水中所含能量的能力，而废水以前一直是未开发的动力来源。微型MFC因其占地面积小，相对较高的功率密度，快速启动和环境友好的工艺而非常理想。微生物燃料电池采用微生物代替金属催化剂作为生物催化剂，金属催化剂广泛应用于常规燃料电池中。只要提供营养，MFC就能发电。微型MFC比​​大型MFC具有更快的发电恢复能力。此外，由于发电密度受表面积/体积比的影响，因此小型MFC可促进较高的功率密度。我们在聚二甲基硅氧烷（PDMS）室中设计并制造了体积为4μL的微型微生物燃料电池。阳极室和阴极室被质子交换膜隔开。碳布用于阳极和阴极。选择Shewanella Oneidensis MR-1作为电细菌并将其接种到阳极室中。我们采用铁氰化物作为阴极电解液，并以约50μL/ hr的恒定流速将其引入阴极室。我们使用胰蛋白酶大豆肉汤作为细菌营养物质，一旦电流降至基本电流，大约每15小时将其添加到阳极室中。使用我们的微型MFC，我们能够产生4.62μA的最大电流。

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  • 会议地点 Minneapolis MN(US)
  • 作者

    Jie Yang; Reza Montazami; Sasan Ghobadian; Nastaran Hashemi;

  • 作者单位

    Department of Mechanical Engineering Iowa State University Ames, Iowa, United States;

    Department of Mechanical Engineering Iowa State University Ames, Iowa, United States;

    Department of Civil and Environmental Engineering Tarbiat Modares University Tehran, Iran;

    Department of Mechanical Engineering Iowa State University Ames, Iowa, United States;

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