微流体无膜微生物燃料电池:用于创纪录功率密度的新协议
Nastaran Khodaparastasgarabad1, Jayesh M Sonawane1, Haleh Baghernavehsi1
1Département de Chimie, Faculté des sciences et de génie, Université Laval, Québec City, QC, Canada. jesse.greener@chm.ulaval.ca.
Lab on a chip
|September 13, 2023
概括
研究人员改进了无膜微生物燃料电池 (MFC),以实现创纪录的功率密度. 这一进步弥合了微型和宏观MFC之间的绩效差距,为未来的发展铺平了道路.
科学领域:
- 微生物的电化学
- 生物电化学系统 生物电化学系统
- 可再生能源技术可再生能源技术
背景情况:
- 无膜微生物燃料电池 (MFC) 面临着低电极面积规范功率的挑战,阻碍了它们的可扩展性.
- 微流体MFC中的功率密度多年来一直停滞不前,与较大的系统相比,造成了差距.
研究的目的:
- 通过改进技术和建立创纪录功率密度来提高微流体MFC性能.
- 引入新的规范化方法,以在不同尺度上比较MFC性能.
主要方法:
- 开发了一种新的无膜MFC设计,采用了技术改进.
- 使用纯培养的 * Geobacter sulfurreducens * 电活性生物膜 (EAB) 进行最佳的阳极殖民.
- 应用了新的功率规范化方法,包括通过湿透的截面和流量率进行规范化.
主要成果:
- 为微流体MFCs实现了3.88 W m-2 (24.37 kW m-3) 的电极面积功率密度的记录.
- 当被湿透的截面面积正常化时,证明功率密度为8.08W m-2 .
- 当通过流量正常化时,获得的正常化能量回收值为0.025 kW h m-3.
结论:
- 开发的战略成功地缩小了微型和宏观MFC之间的绩效差距.
- 这项研究提出了推进微流体MFC技术的路线图.
- 新的规范化方法可以更准确地比较不同尺度的MFC性能.
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