China
Henan Polytechnic University
Wet waste coffee grounds, potassium, hierarchical pores, carbonization, in-situ activation, capacitance.
Wet coffee grounds, potassium, hierarchical porous carbon, dehydration, carbonisation, in-situ activation, capacitance
Coal-based carbon networks, self-assembly method, hierarchical porous structure, ternary-doping, lithium-ion storage properties