Synthesis and adsorption characteristics of nanoporous graphite-derived carbon-s

2019-09-08 19:57:43

chemical 2005 adsorption Japan micropores

责任者: Wang, Zheng-Ming;Yamagishi, Miki;Chu, Yinghao;Hirotsu, Takahiro;Kanoh, Hirofumi 单位: Applied Interfacial Chemistry RG, Research Institute for Environmental Management Technology, Japan Science and Technology Agency, Takamatsu-shi, Kagawa 761-0395, Japan 来源出处: Adsorption,2005,11(1 SUPPL):725-730 摘要: A novel nanoporous C/SiO2 composite was synthesized using graphite precursor by a soft chemical method and its adsorption properties were characterized by nonane, water, and nitrogen adsorption. It was found that only one part of micropores can strongly confine nonane molecules, indicating a wide micropore size distribution. Water adsorption leads to disappearance of one part of micropores, possibly due to closing of pores by dissociative adsorption of water on defective sites. Fractal analysis of the original and the differential nitrogen adsorption isotherms indicate that micropores have a rougher surface and mesopore a flatter surface, suggesting that micropores are surrounded by silica particles and mesopores involve the flat carbon layers. © 2005 Springer Science + Business Media, Inc. 关键词: Adsorption;Synthesis (chemical);Nanostructured materials;Graphite;Nitrogen;Microporosity;Dissociation;Fractals;Silica;Mesoporous materials;Carbon;Soft chemical method;Nanoane;Nanoporous;C/SiO2 composites;Size distribution;Dissociative adsorption