以蔗糖为炭源、磷酸为活化剂,采用一步浸渍化学活化法制备了大比表面积的膨胀石墨/活性炭复合材料;采用SEM和比表面积分析仪对材料进行了表征,研究了磷酸与蔗糖质量比和活化温度对孔结构的影响.结果表明:大部分活性炭沉积在蠕虫状膨胀石墨的表面或以蛋壳状搭接在缠绕空间中,只有少量进入膨胀石墨内部;随着磷酸与蔗糖质量比和活化温度的增大,其比表面积和孔容先增大后减小,材料中微孔逐渐向中孔发展;在磷酸与蔗糖质量比和活化温度分别为0.9和350 ℃时其比表面积和孔容达到最大值,分别为1 978 m2·g-1和0.931 7 cm3·g-1.
所属栏目
新材料 新工艺江苏省高技术项目(BG2007017);江苏大学博士创新计划项目(CX08B_01x)
收稿日期
2009/1/182009/8/17
作者单位
程相乐:江苏大学材料科学与工程学院, 镇江 212013
陈志刚:江苏工业学院材料科学与工程学院, 常州 213016
刘成宝:江苏大学材料科学与工程学院, 镇江 212013
王振邦:江苏大学材料科学与工程学院, 镇江 212013
段小涛:江苏大学材料科学与工程学院, 镇江 212013
备注
程相乐(1984-),男,河南新乡人,硕士研究生.
引用该论文:
CHENG Xiang-le,CHEN Zhi-gang,LIU Cheng-bao,WANG Zhen-bang,DUAN Xiao-tao.Preparation of Expanded Graphite-Carbon Composites by One-Step Impregnation and Chemical Activation[J].Materials for mechancial engineering,2010,34(2):81～84
程相乐,陈志刚,刘成宝,王振邦,段小涛.一步浸渍化学活化法制备膨胀石墨/活性炭复合材料[J].机械工程材料,2010,34(2):81～84
被引情况:
【1】
段晓涛,陈志刚,刘成宝,王振邦, "负载纳米TiO
2膨胀石墨/活性炭复合材料的制备及其性能",机械工程材料
34, 46-49(2010)
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