Measurement Conditions and Uncertainty Evaluation of Specific Surface Area of Graphene Powder by Nitrogen Adsorption Method
摘 要
采用氮气吸附静态容量法(氮气吸附法),以氧化还原石墨烯/金属氧化物粉体为研究对象,利用ASAP 2460型比表面积和孔隙度分析仪测量了其比表面积,确定了测量比表面积的理想测试条件,并对测量不确定度进行评定。结果表明:氮气吸附法测量石墨烯类粉体比表面积的理想样品用量为0.2~0.4 g。比表面积不确定度的评定仅考虑测量重复性、天平称量样品质量及标样引入的标准不确定度,在置信水平p为95%,自由度Vrel为32时,采用氮气吸附法物理吸附仪测量石墨样品比表面积的扩展不确定度为14.55 m2·g-1。
Abstract
Specific surface area of redox graphene/metal oxide powder was measured by ASAP 2460 specific surface area and porosity analyzer using nitrogen adsorption static capacity method (nitrogen adsorption method). The ideal test conditions were determined, and the measurement uncertainty was evaluated. The results show that the ideal sample amount for measuring the specific surface area of graphene powder by nitrogen adsorption method is 0.2~0.4 g. The uncertainty evaluation of specific surface area only considers the standard uncertainty introduced by measurement repeatability, the weight of sample weighed by the balance and the standard sample. When the confidence level p is 95% and the degree of freedom Vrel is 32, the expanded uncertainty of specific surface area of graphite sample measured by nitrogen adsorption method physical adsorption instrument is 14.55 m2·g-1.
中图分类号 TB99 DOI 10.11973/lhjy-wl202107001
所属栏目 试验与研究
基金项目 内蒙古自治区科技创新引导项目(KCBJ2018032)
收稿日期 2021/3/17
修改稿日期
网络出版日期
作者单位点击查看
备注侯渊(1985-),男,博士,主要从事复合材料的制备与表征方法研究工作,houyuan@imust.edu.cn
引用该论文: HOU Yuan,WU Yiwen,WU Xiaoliang,ZHU Wenguang,ZHANG Bangwen. Measurement Conditions and Uncertainty Evaluation of Specific Surface Area of Graphene Powder by Nitrogen Adsorption Method[J]. Physical Testing and Chemical Analysis part A:Physical Testing, 2021, 57(7): 1~5
侯渊,吴益文,武晓亮,朱文广,张邦文. 石墨烯类粉体比表面积的氮气吸附法测量条件与不确定度评定[J]. 理化检验-物理分册, 2021, 57(7): 1~5
共有人对该论文发表了看法,其中:
人认为该论文很差
人认为该论文较差
人认为该论文一般
人认为该论文较好
人认为该论文很好
参考文献
【1】GEIM A K,NOVOSELOV K S. The rise of graphene[J]. Nature Materials,2007,6(3):183-191.
【2】HUANG X,QI X Y,BOEY F,et al. Graphene-based composites[J]. Chemical Society Reviews,2012,41(2):666-686.
【3】LI X,ZHI L. Graphene hybridization for energy storage applications[J]. Chemical Society Reviews,2018,47(9):3189-3216.
【4】STANKOVICH S,DIKIN D A,PINER R D,et al. Synthesis of graphene-based nanosheets via chemical reduction of exfoliated graphite oxide[J]. Carbon,2007,45(7):1558-1565.
【5】SMITH A T,LACHANCE A M,ZENG S S,et al. Synthesis,properties,and applications of graphene oxide/reduced graphene oxide and their nanocomposites[J]. Nano Materials Science,2019,1(1):31-47.
【6】曾燕飞,辛国祥,布林朝克,等. 一步法制备三维还原氧化石墨烯/NiO超级电容器电极材料及其性能研究[J]. 无机材料学报,2018,33(10):1070-1076.
【7】闫晓英,高原,郭延军. 氮气吸附静态容量法测定固体材料比表面积不确定度评定[J]. 计量学报,2017,38(5):543-547.
【2】HUANG X,QI X Y,BOEY F,et al. Graphene-based composites[J]. Chemical Society Reviews,2012,41(2):666-686.
【3】LI X,ZHI L. Graphene hybridization for energy storage applications[J]. Chemical Society Reviews,2018,47(9):3189-3216.
【4】STANKOVICH S,DIKIN D A,PINER R D,et al. Synthesis of graphene-based nanosheets via chemical reduction of exfoliated graphite oxide[J]. Carbon,2007,45(7):1558-1565.
【5】SMITH A T,LACHANCE A M,ZENG S S,et al. Synthesis,properties,and applications of graphene oxide/reduced graphene oxide and their nanocomposites[J]. Nano Materials Science,2019,1(1):31-47.
【6】曾燕飞,辛国祥,布林朝克,等. 一步法制备三维还原氧化石墨烯/NiO超级电容器电极材料及其性能研究[J]. 无机材料学报,2018,33(10):1070-1076.
【7】闫晓英,高原,郭延军. 氮气吸附静态容量法测定固体材料比表面积不确定度评定[J]. 计量学报,2017,38(5):543-547.
相关信息