采用直流电弧放电法,使用填充法制备的阳极棒,制备了氮掺杂空心碳球(NDHCSs).分别使用FESEM、HRTEM、EDX、EELS、XRD、UV-vis等对不锈钢片上的沉积产物进行表征,结果表明:NDHCSs直径主要在110～543 nm,球壁厚度在2～12 nm,由分布比较均匀的C、N和O元素组成,主要由石墨碳和另一种碳物相构成;其在无水乙醇中形成的悬浮液的UV-vis吸收光谱在210 nm、221 nm和264 nm处有三个吸收峰,在紫外光照射下呈现绿色.本文还对NDHCSs生成机理进行了简单的探讨.
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