Transition-metal oxides are a class of promising pseudo-capacitive materials for high energy density supercapacitors, while their low intrinsic conductivity, limited electrochemical sites and remarkable volume expansion deteriorate the electrochemical properties. Herein, we develop a facile synchronization strategy to prepare a N-doped and oxygen vacancy-rich NiCo2O4 microporous nanograss (N–Ov–NCO MiNG), with adjustable superficial nanoporous architecture and electronic structure. Because of the instructive synergy of doping, defect, and sur...
