n-Hexane cracking over heteropoly acids, 3. Silica supported heteropoly acids |
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Authors: | Abdallah Oulmekki Fré dé ric Lefebvre |
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Affiliation: | (1) Institut de Recherches sur la Catalyse, 2 avenue Albert Einstein, 69626 Villeurbanne Cedex, France |
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Abstract: | Silica supported heteropoly acids are active in n-hexane cracking, while the pure compounds (except H3PW12O40) are inactive. This result is explained by a partial transformation of H6P2W18O62 and H6P2W21O71 (H2O)3 into H3PW12O40. In the case of H4SiW12O40, the polyanion in interaction with silica leads to superacidic species upon thermal treatment.
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![ocy](/content/3426l099pgp725p3/xxlarge1086.gif) ![iecy](/content/3426l099pgp725p3/xxlarge1077.gif) ![dcy](/content/3426l099pgp725p3/xxlarge1076.gif) ![icy](/content/3426l099pgp725p3/xxlarge1080.gif) ![ncy](/content/3426l099pgp725p3/xxlarge1085.gif) ![iecy](/content/3426l099pgp725p3/xxlarge1077.gif) ![ncy](/content/3426l099pgp725p3/xxlarge1085.gif) ![icy](/content/3426l099pgp725p3/xxlarge1080.gif) (![zcy](/content/3426l099pgp725p3/xxlarge1079.gif) ![icy](/content/3426l099pgp725p3/xxlarge1080.gif) ![scy](/content/3426l099pgp725p3/xxlarge1089.gif) ![kcy](/content/3426l099pgp725p3/xxlarge1082.gif) ![lcy](/content/3426l099pgp725p3/xxlarge1083.gif) ![yucy](/content/3426l099pgp725p3/xxlarge1102.gif) ![chcy](/content/3426l099pgp725p3/xxlarge1095.gif) ![iecy](/content/3426l099pgp725p3/xxlarge1077.gif) ![ncy](/content/3426l099pgp725p3/xxlarge1085.gif) ![icy](/content/3426l099pgp725p3/xxlarge1080.gif) ![iecy](/content/3426l099pgp725p3/xxlarge1077.gif) H3PW12O40) 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![rcy](/content/3426l099pgp725p3/xxlarge1088.gif) ![iecy](/content/3426l099pgp725p3/xxlarge1077.gif) ![vcy](/content/3426l099pgp725p3/xxlarge1074.gif) ![rcy](/content/3426l099pgp725p3/xxlarge1088.gif) ![acy](/content/3426l099pgp725p3/xxlarge1072.gif) ![shchcy](/content/3426l099pgp725p3/xxlarge1097.gif) ![iecy](/content/3426l099pgp725p3/xxlarge1077.gif) ![ncy](/content/3426l099pgp725p3/xxlarge1085.gif) ![icy](/content/3426l099pgp725p3/xxlarge1080.gif) ![yacy](/content/3426l099pgp725p3/xxlarge1103.gif) ![mcy](/content/3426l099pgp725p3/xxlarge1084.gif) H6P2W18O62 H6P2W21O71 (H2O)3 H3PW12O40. ![Pcy](/content/3426l099pgp725p3/xxlarge1055.gif) ![rcy](/content/3426l099pgp725p3/xxlarge1088.gif) ![tcy](/content/3426l099pgp725p3/xxlarge1090.gif) ![iecy](/content/3426l099pgp725p3/xxlarge1077.gif) ![rcy](/content/3426l099pgp725p3/xxlarge1088.gif) ![mcy](/content/3426l099pgp725p3/xxlarge1084.gif) ![icy](/content/3426l099pgp725p3/xxlarge1080.gif) ![chcy](/content/3426l099pgp725p3/xxlarge1095.gif) ![iecy](/content/3426l099pgp725p3/xxlarge1077.gif) ![scy](/content/3426l099pgp725p3/xxlarge1089.gif) ![kcy](/content/3426l099pgp725p3/xxlarge1082.gif) ![ocy](/content/3426l099pgp725p3/xxlarge1086.gif) ![ocy](/content/3426l099pgp725p3/xxlarge1086.gif) ![bcy](/content/3426l099pgp725p3/xxlarge1073.gif) ![rcy](/content/3426l099pgp725p3/xxlarge1088.gif) ![acy](/content/3426l099pgp725p3/xxlarge1072.gif) ![bcy](/content/3426l099pgp725p3/xxlarge1073.gif) ![ocy](/content/3426l099pgp725p3/xxlarge1086.gif) ![tcy](/content/3426l099pgp725p3/xxlarge1090.gif) ![kcy](/content/3426l099pgp725p3/xxlarge1082.gif) H4SiW12O40 ![pcy](/content/3426l099pgp725p3/xxlarge1087.gif) ![ocy](/content/3426l099pgp725p3/xxlarge1086.gif) ![lcy](/content/3426l099pgp725p3/xxlarge1083.gif) ![icy](/content/3426l099pgp725p3/xxlarge1080.gif) ![acy](/content/3426l099pgp725p3/xxlarge1072.gif) ![ncy](/content/3426l099pgp725p3/xxlarge1085.gif) ![icy](/content/3426l099pgp725p3/xxlarge1080.gif) ![ocy](/content/3426l099pgp725p3/xxlarge1086.gif) , ![vcy](/content/3426l099pgp725p3/xxlarge1074.gif) ![zcy](/content/3426l099pgp725p3/xxlarge1079.gif) ![acy](/content/3426l099pgp725p3/xxlarge1072.gif) ![icy](/content/3426l099pgp725p3/xxlarge1080.gif) ![mcy](/content/3426l099pgp725p3/xxlarge1084.gif) ![ocy](/content/3426l099pgp725p3/xxlarge1086.gif) ![dcy](/content/3426l099pgp725p3/xxlarge1076.gif) ![iecy](/content/3426l099pgp725p3/xxlarge1077.gif) ![jcy](/content/3426l099pgp725p3/xxlarge1081.gif) ![scy](/content/3426l099pgp725p3/xxlarge1089.gif) ![tcy](/content/3426l099pgp725p3/xxlarge1090.gif) ![vcy](/content/3426l099pgp725p3/xxlarge1074.gif) ![ucy](/content/3426l099pgp725p3/xxlarge1091.gif) ![kcy](/content/3426l099pgp725p3/xxlarge1082.gif) ![rcy](/content/3426l099pgp725p3/xxlarge1088.gif) ![iecy](/content/3426l099pgp725p3/xxlarge1077.gif) ![mcy](/content/3426l099pgp725p3/xxlarge1084.gif) ![ncy](/content/3426l099pgp725p3/xxlarge1085.gif) ![iecy](/content/3426l099pgp725p3/xxlarge1077.gif) ![zcy](/content/3426l099pgp725p3/xxlarge1079.gif) ![iocy](/content/3426l099pgp725p3/xxlarge1105.gif) ![mcy](/content/3426l099pgp725p3/xxlarge1084.gif) ![ocy](/content/3426l099pgp725p3/xxlarge1086.gif) , ![dcy](/content/3426l099pgp725p3/xxlarge1076.gif) ![acy](/content/3426l099pgp725p3/xxlarge1072.gif) ![iocy](/content/3426l099pgp725p3/xxlarge1105.gif) ![scy](/content/3426l099pgp725p3/xxlarge1089.gif) ![vcy](/content/3426l099pgp725p3/xxlarge1074.gif) ![iecy](/content/3426l099pgp725p3/xxlarge1077.gif) ![rcy](/content/3426l099pgp725p3/xxlarge1088.gif) ![khcy](/content/3426l099pgp725p3/xxlarge1093.gif) ![kcy](/content/3426l099pgp725p3/xxlarge1082.gif) ![icy](/content/3426l099pgp725p3/xxlarge1080.gif) ![scy](/content/3426l099pgp725p3/xxlarge1089.gif) ![lcy](/content/3426l099pgp725p3/xxlarge1083.gif) ![ycy](/content/3426l099pgp725p3/xxlarge1099.gif) ![chcy](/content/3426l099pgp725p3/xxlarge1095.gif) ![acy](/content/3426l099pgp725p3/xxlarge1072.gif) ![scy](/content/3426l099pgp725p3/xxlarge1089.gif) ![tcy](/content/3426l099pgp725p3/xxlarge1090.gif) ![icy](/content/3426l099pgp725p3/xxlarge1080.gif) ![tscy](/content/3426l099pgp725p3/xxlarge1094.gif) .
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