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在微生物燃料电池中提高电子转移效率通过金纳米粒子修饰

Teresė Kondrotaitė-Intė¹, Antanas Zinovičius^2,3, Domas Pirštelis³

¹Department of Mechanical and Materials Engineering, Vilnius Gediminas Technical University, 10105 Vilnius, Lithuania.

|August 28, 2025

概括

黄金纳米粒子 (AuNP) 在微生物燃料电池 (MFC) 中显著提高了Saccharomyces cerevisiae的性能. 经过AuNP修改的电极显示出优异的电流和功率输出, 进步生物电化学系统.

科学领域:

生物电化学
纳米材料科学
微生物学

背景情况:

微生物燃料电池利用微生物活动发电.
提高MFC性能对于开发高效的生物电化学系统至关重要.
麦芽是一种常用于MFC应用的微生物.

研究的目的:

研究金纳米颗粒 (AuNPs) 和聚醇 (PPy) 修饰对MFC中的Saccharomyces cerevisiae的影响.
用AuNPs修改的酵母与PPy的电化学性能进行比较.
评估AuNP在提高MFC效率方面的潜力.

主要方法:

用金纳米颗粒 (AuNPs) 和聚烯 (PPy) 修饰Saccharomyces cerevisiae.
用于MFC的改性石墨电极的制造.
测量中位电流和功率密度以评估MFC性能.

主要成果:

酵母/AuNP 改性电极的中位电流为 2.57 nA,明显高于酵母/PPy 改性电极 (0.82 nA).
用酵母/AuNP修改的电极的功率密度为22.8 mW/m2,超过仅用酵母电极的功率 (5.7 mW/m2).
AuNP修改显示了电流密度和功率输出的显著改善.

结论:

黄金纳米粒子在提高基于酵母的MFC的电化学性能方面具有显著的潜力.
AuNP修改为开发更高效的生物电化学系统提供了一个有希望的策略.
这项研究为微生物燃料电池技术的纳米材料应用提供了宝贵的见解.

关键词:

电催化燃料电池生物燃料电池酵母

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