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OALib Journal期刊
ISSN: 2333-9721
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酚醛树脂原位催化裂解制备低维碳纳米结构
Keywords: 无机非金属材料,低维碳纳米结构,催化裂解,碳纳米管,碳洋葱,竹节碳
Abstract:
？以ni(no3)2·6h2o为催化剂前躯体,原位催化裂解酚醛树脂制备了碳洋葱、竹节碳和碳纳米管等低维碳纳米结构；用粉体x--射线衍射(xrd)、扫描电镜(sem)和透射电镜(tem)等手段对低维碳纳米结构进行了表征。结果表明；当ni(no3)2·6h2o与苯酚物质量比小于0.01时,ni催化剂易分散,碳纳米管易生成,管径均一、分布稠密；当ni(no3)2·6h2o与苯酚物质量比大于0.04时,ni催化剂易团聚,碳纳米管管径分布较宽,分布稀疏；当ni(no3)2·6h2o与苯酚物质量比为0.10时,ni催化剂团聚现象严重,难以生成碳纳米管；提出了碳洋葱、竹节碳和碳纳米管不同碳纳米结构可能的形成机理。
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