| 液氮温度下JX-6型椰壳炭的性能测试 |
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| 引用本文： | 陈长琦,汪明明,张建国,胡纯栋,谢远来,刘智民,NBI组.液氮温度下JX-6型椰壳炭的性能测试[J].真空,2009,46(4). |
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| 作者姓名： | 陈长琦 汪明明 张建国 胡纯栋 谢远来 刘智民 NBI组 |
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| 作者单位： | 1. 合肥工业大学真空科学技术与装备工程研究所,安徽,合肥,230009
2. 中国科学院等离子体物理研究所,安徽,合肥,230031 |
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| 基金项目： | 中国科学院知识创新工程青年人才领域专项前沿项目 |
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| 摘 要： | 活性炭是NBI低温吸附泵吸附面的关键组成部分,其性能是决定NBI低温泵抽气性能的关键因素之一.本文选取JX-6型椰壳活性炭,用全自动比表面积及孔径分析仪(ASAP2020)在液氮温度下对其性能进行了测试,并对实验数据进行了分析.实验结果表明,该活性炭具有良好的孔隙结构和较强的吸附性能,其最大吸附量达到252 cm3/g STP.为进一步研究NBI低温泵的低温吸附抽气提供了理论依据.
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| 关 键 词： | 吸附 活性炭 液氮温区 比表面积 孔径分布 |
Performance test for coconut shell charcoal(JX-6) at liquid nitrogen temperature |
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| CHEN Chang-qi,WANG Ming-ming,ZHANG Jian-guo,Hu Chun-dong,XIE Yuan-lai,LIU Zhi-min,NBI team.Performance test for coconut shell charcoal(JX-6) at liquid nitrogen temperature[J].Vacuum,2009,46(4). |
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| Authors: | CHEN Chang-qi WANG Ming-ming ZHANG Jian-guo Hu Chun-dong XIE Yuan-lai LIU Zhi-min NBI team |
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| Abstract: | Activated carbon is an integral part of the adsorbing surface of NBI cryoadsorption pump,and the performance of activated carbon is one of the most important factors which determine the capability of gas pumping out of NBI cryopump.The JX-6 coconut shell charcoal was chosen as activated carbon sample to be tested at liquid nitrogen temperature by using the fully automatic analyzer of specific area and pore size (ASAP2020) for its performance,with the resultant data analyzed.The results indicated that such an activated carbon has favorable pore structure and high adsorptivity by which the maximum adsorption quantity can be up to 252cm3/g STP.A theoretical basis is thus provided for further R&D of low-temperature adsorption by NBI cryopump |
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| Keywords: | adsorption activated carbon liquid nitrogen temperature specific area aperture distribution |
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