초록 |
The ZMO wasprepared via the following processes: the synthesis of hydrophilicglucose-based carbon spheres as a template by a hydrothermal process, theformation of the carbon sphere@ hydrated ZMO via polyol reaction ofethylene glycol by a solvothermal process, along with subsequent calcinationconditions to synthesize the double-shelled ZMO hollow spheres. The ZMO hollowspheres with different calcination temperatures were differently synthesized viathe combined mechanism of both inward and outward Ostwald ripening, whichconsist of their outer shell, inner shell, void space between outer shell andinner one, and inner hollow core. The improved rate capability for ZMO-450 is easily identified with exceptional highspecificcapacity, which was maintained at 1050A h g-1 without fading even after70 cycles. |