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Different characterization techniques were used to analyse the chemically activated carbons in (i) one dimensional analysis including MIP and BET, (ii) two dimensions including SEM and TEM and (iii) three dimensional X-ray CT. This structure has been directly linked to the electrochemical performance of supercapacitors for the first time.

Doping is an effective way to optimize the properties of electrode material. Here hollow Cu-doped NiO microspheres were obtained via hydrothermal way, which exerts prominent initial capacity and better rate capability as anode materials.

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