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A spindle-like Cu-based metal-organic framework was successfully synthesized under microwave-assisted reaction. When treated as a precursor by pyrolysis of this Cu-MOF at 700 °C under air atmosphere, porous hollow CuO/C composites were prepared and tested as an anode material for lithium-ion batteries (LIBs). The CuO/C electrode manifests an excellent specific capacity of about 789 mAh g−1 at a current...