以脱油沥青(Deoiled Asphalt)作原料,用热处理法制备了内包金属镍的纳米碳洋葱.用X-射线衍射仪(XRD)和高分辨透射电镜(HRTEM)对产物进行表征.结果表明:在2000℃温度下真空热处理后,镍粒子大多被数层碳壳包覆形成内包镍的纳米碳洋葱,颗粒多为准球形结构,尺寸在10-30nm范围,晶化程度较高,结构较完善.为内包镍纳米碳洋葱的制备开拓了廉价生产的新途径.
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