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碳纳米管/羟基磷灰石复合材料的制备及表征

, PP. 85-89

Keywords: 碳纳米管,羟基磷灰石,原位合成,复合材料,表征

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Abstract:

以含钴介孔分子筛为催化剂、乙醇为碳源,采用CVD法制备碳纳米管(CNTs)。通过原位合成法制备一系列不同碳纳米管含量的碳纳米管/羟基磷灰石(CNTs/HA)复合材料。分别采用XRD、FTIR、TEM、N2吸附-脱附和Raman光谱等分析手段,对所合成CNTs/HA复合材料的晶相、结构、形貌和比表面积等进行了表征。同时研究了碳纳米管的添加量对所合成CNTs/HA复合材料形貌的影响。XRD与Raman结果表明,所得CNTs/HA复合粉体中仅有CNTs与HA两种物相,纯度较高,结晶度较好;TEM结果显示,CNTs/HA复合材料中CNTs表面均匀包裹着一层纳米级的针状HA晶粒,两者形成了较强的界面结合,且当CNTs与HA的质量比为3:17时,CNTs与HA形成最佳结合状态;N2吸附-脱附表征结果表明,与HA的比表面积相比,CNTs/HA复合材料具有较高比表面积。

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