In situ construction of Co/N/C-based heterojunction on biomass-derived hierarchical porous carbon with stable active sites using a Co-N protective strategy for high-efficiency ORR, OER and HER trifunctional electrocatalysts

Xue‐Hui Lv, Zuoxu Xiao, Haoyuan Wang, Xinlong Wang, Lulu Shan, Fuling Wang, Chuangyu Wei, Xiangjie Tang, Yanli Chen