氯气刻蚀法合成碳化物衍生炭及其性能

来源 :第十八届全国高技术陶瓷学术年会 | 被引量 : 0次 | 上传用户:hades173053
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碳化物衍生炭(carbide derived carbonCDC)是新型的纳米孔材料,利用不同形貌(晶须和颗粒)的立方相SiC为前驱体与氯气与在1000℃反应形成碳化物衍生介孔炭,利用XRD、SEM、低温氮气吸脱附等研究不同形貌SiC对于生成碳化物衍生物结构、性能的影响.SiC晶须和纳米颗粒制备的介孔炭具有高比表面积(395和634 m2/g)、集中的孔径分布(3.41和4.91 nm).SiC纳米颗粒制备的CDC孔道以圆柱形为主,而SiC晶须制备的CDC孔道的形貌呈烧瓶状.2种CDC材料对Co离子具有良好的选择吸附能力.
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