%0 Journal Article
%T DirectHydroxylationofBenzenetoPhenoloverFe3O4SupportedonNanoporousCarbon
%J ´ß»¯Ñ§±¨
%P 258-263
%D 2011
%R 10.1016/S1872-2067(10)60173-8
%X £¿Fe3O4/CMK-3waspreparedbyimpregnationandusedasacatalystforthedirecthydroxylationofbenzenetophenolwithhydrogenperoxide.TheironspeciesinthepreparedcatalystwasFe3O4becauseofthepartialreductionofiron(III)toiron(II)onthesurfaceofCMK-3.ThehighcatalyticactivityofthecatalystarisesfromtheformationofFe3O4onthesurfaceofCMK-3andthehighselectivityforphenolisattributedtotheconsumptionofexcesshydroxylradicalsbyCMK-3.Theeffectoftemperature,reactiontime,volumeofH2O2,andamountofcatalystonthecatalyticperformanceofthepreparedcatalystwereinvestigated.Underoptimizedconditions,thecatalystshowedexcellentcatalyticperformanceforthehydroxylationofbenzenetophenoland18%benzeneconversionwasachievedwith92%selectivityforphenolandwithaTOFvalueof8.7h-1.Thestabilityofcatalystwasinvestigatedbydeterminingitsactivityafterthefourthrunanditwasfoundtohavedecreasedto80%ofthefreshcatalyst¡¯sactivity.
%K nanoporouscarbon
%K ferroferricoxide
%K hydroxylationofbenzene
%K phenol
%U http://www.chxb.cn/CN/abstract/abstract20291.shtml