caa a22 4500 463233220 CHVBK 20180405153248.0 cr unu---uuuuu 170326e20070701xx s 000 0 eng 10.1007/s10853-006-0458-0 doi (NATIONALLICENCE)springer-10.1007/s10853-006-0458-0 Carbon dioxide reduction into carbon by mechanically milled wustite [Elektronische Daten] [Eiji Yamasue, Hironori Yamaguchi, Hiroshi Nakaoku, Hideyuki Okumura, Keiichi Ishihara] The CO2 decomposition utilizing mechanically milled wustite powders was qualitatively and quantitatively examined and its mechanism was investigated. The wustite phase is stable at least up to 6h of milling, and the lattice parameter, the crystallite size and the average particle diameter are monotonously decreased with milling time, while the BET specific surface area is correspondingly increased. The mechanically milled FeO powder decomposes CO2 into graphite and amorphous carbon at 773K, where the decomposition intensity increases with milling time, while unmilled FeO decomposes CO2 into CO with the same annealing condition. It is found that the FeO powder thermally decomposes into Fe and Fe3O4 prior to the reaction with CO2, followed by the precipitated Fe reacting with CO2, and also that the thermal decomposition is promoted by the milling process. Springer Science+Business Media, LLC, 2007 Yamasue Eiji Graduate School of Energy Science, Kyoto University, Yoshida-Honmachi Sakyo-ku, 606-8501, Kyoto, Japan aut Yamaguchi Hironori Graduate School of Science, Kyoto University, Yoshida-Honmachi Sakyo-ku, 606-8501, Kyoto, Japan aut Nakaoku Hiroshi Institute of Industrial Science, University of Tokyo, 4-6-1, Komaba Meguro-ku, 153-8505, Tokyo, Japan aut Okumura Hideyuki Graduate School of Energy Science, Kyoto University, Yoshida-Honmachi Sakyo-ku, 606-8501, Kyoto, Japan aut Ishihara Keiichi Graduate School of Energy Science, Kyoto University, Yoshida-Honmachi Sakyo-ku, 606-8501, Kyoto, Japan aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/13(2007-07-01), 5196-5202 0022-2461 42:13<5196 2007 42 10853 https://doi.org/10.1007/s10853-006-0458-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-0458-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Yamasue Eiji Graduate School of Energy Science, Kyoto University, Yoshida-Honmachi Sakyo-ku, 606-8501, Kyoto, Japan aut NATIONALLICENCE 700 1- Yamaguchi Hironori Graduate School of Science, Kyoto University, Yoshida-Honmachi Sakyo-ku, 606-8501, Kyoto, Japan aut NATIONALLICENCE 700 1- Nakaoku Hiroshi Institute of Industrial Science, University of Tokyo, 4-6-1, Komaba Meguro-ku, 153-8505, Tokyo, Japan aut NATIONALLICENCE 700 1- Okumura Hideyuki Graduate School of Energy Science, Kyoto University, Yoshida-Honmachi Sakyo-ku, 606-8501, Kyoto, Japan aut NATIONALLICENCE 700 1- Ishihara Keiichi Graduate School of Energy Science, Kyoto University, Yoshida-Honmachi Sakyo-ku, 606-8501, Kyoto, Japan aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/13(2007-07-01), 5196-5202 0022-2461 42:13<5196 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer