文献类型：期刊文献

英文题名：Power-generating trees: Direct bioelectricity production from plants with microbial fuel cells

作者：Lu, Zhihao[1,2,3];Yin, Di[1];Chen, Peng[1];Wang, Hongzhen[1];Yang, Yuhang[1];Huang, Guangtuan[1];Cai, Lankun[1];Zhang, Lehua[1,4]

机构：[1]East China Univ Sci & Technol, Sch Resources & Environm Engn, State Environm Protect Key Lab Environm Assessmen, Shanghai 200237, Peoples R China;[2]Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Fujian, Peoples R China;[3]Univ Chinese Acad Sci, Beijing 100049, Peoples R China;[4]Shanghai Inst Pollut Control & Ecol Secur, Shanghai 200092, Peoples R China

年份：2020

卷号：268

外文期刊名：APPLIED ENERGY

收录：;EI(收录号：20201708534366);WOS:【SCI-EXPANDED(收录号:WOS:000537357800065)】；

基金：This work was supported by the National Key Research and Development Plans of Special Project for Site Soils (2018YFC1800600), the National Natural Science Foundation of China (21876050) and the Special Fund from State Key Joint Laboratory of Environment Simulation and Pollution Control (18K10ESPCT).

语种：英文

外文关键词：Plant-microbial fuel cell; Stem-couple; Bioelectricity production; Commensalism; Energy plant; Biosensing

摘要：Although plant-microbial fuel cells (PMFCs) have been considered as an alternative approach to utilize plants as an energy source, the application of a conventional PMFC coupled with rhizodeposits is immensely limited by environmental factors and plant species. In this research, we suggested a new concept for a device that can directly generate continuous bioelectricity from the plant stem associated with microbial fuel cells (MFCs), in which Pachira macrocarpa and Populus alba were employed. Compared with a conventional PMFC, the novel PMFC coupled with the plant stems produced more stable and continuous bioelectricity without oscillatory behaviour as well as a much shorter start-up period. The stem-coupled PMFCs produced bioelectricity that were operated at least 40 days. P. alba coupled PMFC showed higher power output compared to P. macrocarpa counterparts and the maximal power densities were 7.61 mW m(-2) and 3.60 mW m(-2) anode surface, respectively. Besides, we explored the response of the novel PMFC to different substrate concentrations and observed that the cell voltage effectively increased after the injection of moderate substrate concentrations. Moreover, the anodic bacteria formed a commensal relationship with the plant.