在生物化学系统中应用对纳米粒子修饰电极的电极沉积
Fatemeh Mahmoodzadeh1, Nahid Navidjouy1, Saber Alizadeh2
1Department of Environmental Health Engineering, School of Public Health, Urmia University of Medical Sciences, Urmia, Iran.
MethodsX
|January 20, 2025
概括
用添加的电极显著提高了微生物燃料电池 (MFC) 在废水处理中的性能. 这项研究证明了使用改性石墨板和碳的增强电压和发电,证明了电沉积是一种可行的改性技术.
科学领域:
- 环境科学与工程环境科学与工程
- 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) 为废水处理和能源发电提供了一种环保的方法.
- 电极材料和修改对于MFC效率和输出功率至关重要.
- 石墨板 (GP) 和碳 (CF) 是常见的电极材料,但它们的性能可以提高.
研究的目的:
- 调查 (Ni) 兴奋剂对MFC应用的石墨板 (GP) 和碳 (CF) 电极的作用.
- 在电压,电流密度和发电方面评估性能提升.
- 评估电极沉积的适用性作为修改MFC阳极电极的方法.
主要方法:
- (Ni) 被电沉积在石墨板 (GP) 和碳 (CF) 上,以创建修改后的电极.
- 微生物燃料电池 (MFC) 使用裸体和Ni修饰的电极构建.
- 通过在受控温度下测量最大电压,电流密度和功率输出来评估性能.
- 场发射扫描电子显微镜 (FE-SEM) 用于分析电极表面形态和微生物的附着.
- 对开放电路电压 (OCV) 进行监测,以评估电极的稳定性和随时间推移的电阻.
主要成果:
- FE-SEM证实了成功的Ni兴奋剂和良好的微生物粘附在Ni修饰的电极上,表明电子传输得到了改善.
- 改性电极表现出显著更高的性能:生物@CF达到468.0mV,生物@GP达到422.0mV.
- 与裸体电极 (CF: 382.0 mV,GP: 301.0 mV) 相比,Ni注导致了相当大的电压增加.
- 在OCV监测中,在MFC操作期间,电极上的Ni薄膜的稳定性和适当的电阻得到了证明.
结论:
- 电极沉积是一种有效的技术,用于修改MFC中含的阳极电极.
- 兴奋剂增强了电子传输和微生物的附着,从而提高了MFC效率和发电.
- 改造的CF和GP电极显示出先进的废水处理和生物能源生产的有希望的潜力.
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