Synergistic Enhancement of Microbial Fuel Cell Performance via Hierarchical NiCo 2 O 4 /Polypyrrole-Modified Carbon Felt Anode. - Chen, Yuchu; Lei, Jiuming; Wang, Zhijie; Kong, Xiangquan; Zhang, Ting; Li, Yishuai; Yang, Xianheng; Zuo, Jinlong; Li, Jie; Wang, Yuyang (Coatings (2079-6412), 2025)