Methane oxidative carbonylation catalyzed by rhodium chalcogen halides over carbon supports  

作　　者：G.R.Kosmambetoval P.E.Strizhak V.I.Gritsenko S.V.Volkov L.B.Kharkova O.G.Yanko O.M.Korduban 

机构地区：[1]L.V Pisarzhevsky Institute of Physical Chemistry of National Academy of Sciences of Ukraine,pr.Nauki 31,Kiev,03039,Ukraine [2]V.I.Vernadsky Institute of General and Inorganic Chemistry of National Academy of Sciences of Ukraine pr.PaUadina,32/34,Kiev,03680,Ukraine [3]V.I.Vernadsky Institute of General and Inorganic Chemistry of National Academy of Sciences of Ukraine pr.Palladina,32/34,Kiev,03680,Ukraine [4]G.V.Kurdyumov Institute of Metal Physics of National Academy of Sciences of Ukraine,36,Vernadskij av,Kyiv,03680,Ukraine

出　　处：《Journal of Natural Gas Chemistry》2008年第1期1-7,共7页天然气化学杂志（英文版）

摘　　要：Gas phase carbonylation of methane is studied in the presence of molecular oxygen over pure carbon carriers and carbon supported rhodium chalcogen halides. Activated carbons and fullerene blacks have been used as carbon supports. XPS and IR-spectroscopy data show the formation of rhodium chalcogen halides in solids prepared by different methods. We have found that the productivity of acetic acid by carbon supported rhodium chalcogen halides depends strongly on the carbon carrier and the method of the catalyst preparation. Namely, the catalyst with highest productivity for the acetic acid is prepared by synthesizing the rhodium chalcogen halide over the carbon support followed by thermal destruction. We have also found that rhodium chalcogen halides over activated carbons are more active compared with fullerene supported catalysts.Gas phase carbonylation of methane is studied in the presence of molecular oxygen over pure carbon carriers and carbon supported rhodium chalcogen halides. Activated carbons and fullerene blacks have been used as carbon supports. XPS and IR-spectroscopy data show the formation of rhodium chalcogen halides in solids prepared by different methods. We have found that the productivity of acetic acid by carbon supported rhodium chalcogen halides depends strongly on the carbon carrier and the method of the catalyst preparation. Namely, the catalyst with highest productivity for the acetic acid is prepared by synthesizing the rhodium chalcogen halide over the carbon support followed by thermal destruction. We have also found that rhodium chalcogen halides over activated carbons are more active compared with fullerene supported catalysts.

关 键 词：CATALYSTS methane oxidative carbonylation rhodium chalcogen halides carbon supports 

分 类 号：O643.3[理学—物理化学]