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在实验室和户外现场反应堆中,从冷的微生物燃料电池中恢复电压
Chunyang Lin1, Haoran Liang1, Xiaojing Yang1
1School of Chemical Engineering, Ocean and Life Sciences, Dalian University of Technology, Panjin 124221, China.
The Science of the total environment
|June 5, 2024
概括
微生物燃料电池 (MFC) 可以在结后恢复发电. 冷-解周期对MFC性能产生了积极的影响,显示了实际低温应用的潜力.
科学领域:
- 环境科学 环境科学
- 电化学 电化学 电化学
- 微生物学 微生物学
背景情况:
- 微生物燃料电池 (MFC) 面临极端温度变化,特别是低温和结温度的挑战.
- 在零度以下条件下对MFC性能存在有限的研究,这阻碍了它们在寒冷气候中的实际应用.
研究的目的:
- 调查低温冲击和冷-解周期对MFCs发电性能的影响.
- 在暴露于结温度后,分析MFC内的微生物社区结构的变化.
主要方法:
- 两个尺度的MFC (小ML-MFC和大L-MFC) 被冷在-18°C,然后解.
- 在结解周期之前和之后测量功率密度.
- 在冷后的阳极样本上进行了微生物群体分析.
主要成果:
- 两种MFC在解后都表现出快速的电压恢复.
- 小型rGO/Ag MFC的功率密度从194.30 mW/m2恢复到195.57 mW/m2.
- 大型碳感MFC显示功率密度从1.79mW/m2显著增加到173.90mW/m2解后,尽管放大问题仍然存在.
- 像Flavobacterium和Psychrobacter这样的心理耐受性细菌丰富了阳极,而甲素则减少了.
结论:
- 结解操作对MFC性能有非负面的,并且可能有益的影响.
- 在低温环境中,MFC对实际应用具有前景.
- 需要进一步的研究来解决扩大规模的MFC反应堆的性能退化问题.
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