使用考林和活性炭的阳极修正增加了微生物燃料电池中的发电量
Lea Ouaknin Hirsch1, Irina Amar Dubrovin1, Bharath Gandu2
1Department of Chemical Engineering, Ariel University, Ariel 40700, Israel.
Bioelectrochemistry (Amsterdam, Netherlands)
|June 11, 2023
概括
考林粘土通过改善细菌对阳极的附着性来提高微生物燃料电池 (MFC) 的性能. 这种天然粘合剂提高了MFC中的功率密度和效率,为生物电化学系统提供了一种新的方法.
科学领域:
- 电化学 电化学 电化学
- 环境科学 环境科学
- 生物技术是生物技术.
背景情况:
- 微生物燃料电池 (MFC) 对可持续能源发电具有前景.
- 细菌阳极性能对于MFC效率至关重要.
- 对外电致细菌的有效固定对于稳定的阳极功能至关重要.
研究的目的:
- 调查考林作为一种天然粘合剂的潜力,用于在阳极材料上固定外电致细菌.
- 评估考林修饰对MFC性能的影响,包括电压,功率密度和库伦比效率.
- 为了分析微生物社区结构在修改过的阳极上.
主要方法:
- 用高和活性炭 (高-AC),仅高和裸体碳布 (控制) 修改的碳布阳极的制造.
- 使用废水作为燃料测试不同阳极修改的MFCs的生物电活性.
- 测量最大电压,功率密度和电流密度.
- 使用16S rRNA基因测序分析库伦比效率和相对微生物多样性.
主要成果:
- 考-AC阳极达到0.6V的最大电压,明显高于考 (0.4V) 和赤裸阳极 (0.25V).
- 最大功率密度达到了1112mW‧m−2,超过考林和赤裸阳极分别为12%和56%.
- 考林-AC阳极表现出最高的库伦比克效率 (16%) 和占优势的相对分布 Geobacter (64%).
结论:
- 考林有效地固定了外电致细菌,提高了MFC中的阳极性能.
- 基于高的阳极改造提供了一种具有成本效益和自然的解决方案,用于提高MFC的能量输出.
- 这项研究强调了高作为生物电化学系统中阳极开发的新材料.
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