以纳米黑磷和氧化石墨烯为原料,通过高温热处理的方法合成了碳包覆的磷/石墨烯复合材料,通过XRD、Raman、FT-IR、XPS及SEM对该复合材料进行表征。电化学性能测试表明,在100mA/g的电流密度下,制备的复合材料首次充电比容量为530mAh/g,循环50次后比容量仍然保持在492mAh/g,容量保持率为92.8%,表现出优异的电化学性能。
The P@C/G composite was prepared from nano black phosphorus and graphene oxide through heat treatment.The structure characterization and surface morphology were investigated using X-ray diffraction (XRD),Raman spectroscopy,fourier transform infrared spectroscopy (FT-IR),X-ray photoelectron spectroscopy (XPS) and scanning electron microscope (SEM).Electrochemical tests showed that the initial charge capacity of P@C/G reached 530mAh·g-1,the maintained capacity was 492mAh·g-1 after 50 cycles,with a capacity retention of 92.8%,indicating that P@C/G had excellent electrochemical performance.
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基金资助
云南省自然科学基金(2016FB018);云南省中青年学术技术带头人后备人才项目(2015HB022)
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