Surface activated natural wood biomass electrode for efficient microbial electrocatalysis: Performance and mechanism

文献类型： 外文期刊

第一作者： Xu, Zi-Ai

作者： Xu, Zi-Ai;Ma, Xiao-Meng;Shi, Yu-Tong;Moradian, Jamile Mohammadi;Wang, Yan-Zhai;Yong, Yang-Chun;Sun, Guo-Feng;Du, Jing;Ye, Xiao-Mei

作者机构：

关键词： extracellular electron transfer; microbial electrocatalysis; microbial fuel cells; surface activation; wood electrode

期刊名称：INTERNATIONAL JOURNAL OF ENERGY RESEARCH （ 影响因子：4.672； 五年影响因子：4.533 ）

ISSN： 0363-907X

年卷期： 2022 年 46 卷 6 期

页码：

收录情况： SCI

摘要： Microbial electrocatalysis showed great potential for waste energy harvesting and CO2 upgrading. The conventional electrodes with three-dimensional (3D) architectures hold promise for efficient microbial electrocatalysis, but they were designed as macroporous structure with microfibers in all three dimensions, which could not concurrently improve the mass transfer and microbes penetration. In this study, a high-performance 3D electrode assembled from bulk two-dimensional (2D) structures derived from natural wood was fabricated by hydrothermal treatment for surface activation and followed by pyrolysis. This 2D/3D hybrid structure guaranteed high surface area and multi-transportation-pathways, which endowed the wood electrode attracted more bacterial cells, facilitated the interfacial electron transfer between cells and electrode. As a result, the wood electrode delivered 8.3 times higher power output (483 vs 52 mW/m(2)) and 3.1 times higher formic acid production (3.3 vs 0.8 mM) than conventional carbon cloth electrode in microbial electrocatalysis system. This work provided new strategy for high-performance wood electrode fabrication and unveiled the mechanism of microbial electrocatalysis with natural biomass electrode.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序