caa a22 4500 46317061X CHVBK 20180406164812.0 cr unu---uuuuu 170326e20070401xx s 000 0 eng 10.1007/s10450-007-9015-7 doi (NATIONALLICENCE)springer-10.1007/s10450-007-9015-7 The effect of burn-off on the adsorption of N2 and Ar on a natural graphite [Elektronische Daten] [Kazuhisa Miura, Hiroshi Yanazawa, Kazuyuki Nakai] Adsorption-desorption isotherms of N2 and Ar were measured at 77K using samples of graphite that were partially burned off at 600 °C in O2 gas saturated with water vapor at 25 °C. The amounts of adsorbed N2 and Ar dropped drastically as the degree of burn-off increased. The isotherms all showed a steep rise, or step, in the amounts of adsorbed N2 and Ar at a relative pressure of around 0.4. Moreover, the hysteresis was much narrower after burn-off than before. These anomalies can be explained by the presence of functional groups on the graphite that produce H2O and CO2 upon decomposition and in terms of pores on the surface of the graphite. Springer Science+Business Media, LLC, 2007 Natural graphite nationallicence Adsorption nationallicence Burn-off nationallicence Porosity nationallicence Miura Kazuhisa Department of General Education, Tsuyama National College of Technology, 624-1 Numa, 708-8509, Tsuyama, Japan aut Yanazawa Hiroshi MEMS-CORE Co., Ltd., 2-14-9 Tateno, Higashiyamato, 207-0021, Tokyo, Japan aut Nakai Kazuyuki Technical Department, Bel Japan, Inc., 1-5-6 Ebie, Fukushima-ku, 553, Osaka, Japan aut Adsorption Springer US; http://www.springer-ny.com 13/2(2007-04-01), 139-147 0929-5607 13:2<139 2007 13 10450 https://doi.org/10.1007/s10450-007-9015-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10450-007-9015-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Miura Kazuhisa Department of General Education, Tsuyama National College of Technology, 624-1 Numa, 708-8509, Tsuyama, Japan aut NATIONALLICENCE 700 1- Yanazawa Hiroshi MEMS-CORE Co., Ltd., 2-14-9 Tateno, Higashiyamato, 207-0021, Tokyo, Japan aut NATIONALLICENCE 700 1- Nakai Kazuyuki Technical Department, Bel Japan, Inc., 1-5-6 Ebie, Fukushima-ku, 553, Osaka, Japan aut NATIONALLICENCE 773 0- Adsorption Springer US; http://www.springer-ny.com 13/2(2007-04-01), 139-147 0929-5607 13:2<139 2007 13 10450 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer