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用于高性能微生物燃料电池的抗菌MnS/Co-SNC阴极催化剂
Sainan Cai1, Qi Qi1, Tianwen Zheng2
1Research Center for Nano Photoelectrochemistry and Devices, School of Chemistry and Chemical Engineering, Southeast University, Nanjing, Jiangsu 211189, China. yqwang@seu.edu.cn.
Nanoscale
|December 17, 2025
概括
一种新型的双功能催化剂 (MnS/Co-SNC) 通过提高氧降解反应动力学和防止生物污染来增强微生物燃料电池 (MFC). 这一进步改善了MFCs的可持续能源生产.
科学领域:
- 电化学 电化学 电化学
- 材料科学 材料科学 材料科学
- 生物技术是生物技术.
背景情况:
- 微生物燃料电池 (MFC) 在实际应用中面临着挑战,原因是缓慢的氧降解反应 (ORR) 动力学和阴极生物污染.
- 现有的催化剂往往难以同时解决这两个问题,从而限制了MFC的性能和寿命.
研究的目的:
- 开发一种双功能催化剂 (MnS/Co-SNC),能够增强ORR活性并提供抗菌性质.
- 为了研究催化剂在单室MFC中的性能,以实现可持续的能源发电.
主要方法:
- 合成由ZIF-67衍生而来的MnS/Co联合固的N-化碳催化剂 (MnS/Co-SNC).
- 在性介质中对催化剂的ORR性能进行电化学表征.
- 评估催化剂的抗菌活性和生物膜抑制.
- 测试催化剂作为单MFC中的空气阴极,以评估功率密度和稳定性.
主要成果:
- 与商业Pt/C相比,MnS/Co-SNC催化剂显示出更高的ORR开始潜力 (0.92V) 和半波潜力 (0.88V).
- 催化剂表现出显著的抗菌活性,有效抑制生物膜的形成.
- 在单腔MFC中,MnS/Co-SNC阴极达到1400mW m-2的最大功率密度,并保持稳定的电压超过120小时.
- 催化剂的性能优于其他最先进的非贵金属催化剂.
结论:
- 开发的MnS/Co-SNC催化剂提供了一个协同解决方案,通过改善ORR动力学和打击生物污染来提高MFC性能.
- 这种多功能催化剂代表了MFC在可持续能源生产中的实际应用的重大进步.
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