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Microporous carbon/graphene composites (MPC/Gs) are prepared for the first time directly from coal tar pitch and graphene oxide by KOH activation. MPC/Gs are characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, and nitrogen adsorption-desorption techniques. The electrochemical properties of MPC/G composites are examined by cyclic voltammetry, galvanostatic...
Three-dimensional ZnMn2O4/porous carbon framework (3D ZnMn2O4/PCF) was prepared from petroleum asphalt via template synthesis of 3D porous carbon framework (PCF) and subsequent incorporation with ZnMn2O4. As the anode material of lithium-ion batteries, 3D ZnMn2O4/PCF exhibits a high reversible capacity of 760mAhg−1 at 100mAg−1 and superior rate capability (ca. 500mAhg−1 at 800mAg−1), which can be...
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