A white-rot fungus is used as a biocathode to improve electricity production of a microbial fuel cell

作者：Wu Chao; Liu Xian Wei; Li Wen Wei; Sheng Guo Ping; Zang Guo Long; Cheng Yuan Yuan; Shen Nan; Yang Yi Pei; Yu Han Qing^*

来源：Applied Energy, 2012, 98: 594-596.

DOI：10.1016/j.apenergy.2012.02.058

• Biocathode
• Electricity generation
• Microbial fuel cell (MFC)
• White-rot fungus

White-rot fungus is able to secrete laccase, which can reduce O-2 to H2O and has been widely used in enzymatic fuel cells. In this work, a strain of white-rot fungus, Coriolus versicolor, is inoculated in the cathodic chamber of a microbial fuel cell (MFC) to improve cathode reduction efficiency for better electricity generation. 2,2'-Azino-bis(3-ethylbenzothazoline-6-sulfonate), as a redox mediator, is added to the catholyte to facilitate the electron transfer between the electrode and the laccase. The results show that the fungus-based biocathode has better performance than the conventional abiotic cathode, with approximately seven-orders higher power density achieved. This is the first report that white-rot fungus is used to constitute the biocathode of an MFC for improved electricity generation.

• 出版日期2012-10
• 单位中国科学技术大学