A TPR study of SiO2-supported Ru?Ag catalysts |
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Authors: | D E Damiani E D Pérez Millán and A J Rouco |
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Institution: | (1) Plapiqui (UNS-CONICET), 12 de Octubre 1842, 8000 Bahía Blanca, Argentina |
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Abstract: | A H2 chemisorption and TPR study of Ru–Ag/SiO2 catalysts reveals that after oxidation at 373 K this systems behaves like Ru–Cu/SiO2. High temperature oxidation, however, does not result in the separation of the metal like in the Ru–Cu case but in the redispersion of Ag on top of the Ru particles.
![Icy](/content/rr28287445q7mj03/xxlarge1048.gif) ![scy](/content/rr28287445q7mj03/xxlarge1089.gif) ![scy](/content/rr28287445q7mj03/xxlarge1089.gif) ![lcy](/content/rr28287445q7mj03/xxlarge1083.gif) ![iecy](/content/rr28287445q7mj03/xxlarge1077.gif) ![dcy](/content/rr28287445q7mj03/xxlarge1076.gif) ![ocy](/content/rr28287445q7mj03/xxlarge1086.gif) ![vcy](/content/rr28287445q7mj03/xxlarge1074.gif) ![acy](/content/rr28287445q7mj03/xxlarge1072.gif) ![ncy](/content/rr28287445q7mj03/xxlarge1085.gif) ![icy](/content/rr28287445q7mj03/xxlarge1080.gif) ![khcy](/content/rr28287445q7mj03/xxlarge1093.gif) ![iecy](/content/rr28287445q7mj03/xxlarge1077.gif) ![mcy](/content/rr28287445q7mj03/xxlarge1084.gif) ![ocy](/content/rr28287445q7mj03/xxlarge1086.gif) ![scy](/content/rr28287445q7mj03/xxlarge1089.gif) ![ocy](/content/rr28287445q7mj03/xxlarge1086.gif) ![rcy](/content/rr28287445q7mj03/xxlarge1088.gif) ![bcy](/content/rr28287445q7mj03/xxlarge1073.gif) ![tscy](/content/rr28287445q7mj03/xxlarge1094.gif) ![icy](/content/rr28287445q7mj03/xxlarge1080.gif) H2 ![Tcy](/content/rr28287445q7mj03/xxlarge1058.gif) ![Pcy](/content/rr28287445q7mj03/xxlarge1055.gif) ![kcy](/content/rr28287445q7mj03/xxlarge1082.gif) ![acy](/content/rr28287445q7mj03/xxlarge1072.gif) ![tcy](/content/rr28287445q7mj03/xxlarge1090.gif) ![acy](/content/rr28287445q7mj03/xxlarge1072.gif) ![lcy](/content/rr28287445q7mj03/xxlarge1083.gif) ![icy](/content/rr28287445q7mj03/xxlarge1080.gif) ![zcy](/content/rr28287445q7mj03/xxlarge1079.gif) ![acy](/content/rr28287445q7mj03/xxlarge1072.gif) ![tcy](/content/rr28287445q7mj03/xxlarge1090.gif) ![ocy](/content/rr28287445q7mj03/xxlarge1086.gif) ![rcy](/content/rr28287445q7mj03/xxlarge1088.gif) ![ocy](/content/rr28287445q7mj03/xxlarge1086.gif) Ru–Ag/SiO2 ![ocy](/content/rr28287445q7mj03/xxlarge1086.gif) ![bcy](/content/rr28287445q7mj03/xxlarge1073.gif) ![ncy](/content/rr28287445q7mj03/xxlarge1085.gif) ![acy](/content/rr28287445q7mj03/xxlarge1072.gif) ![rcy](/content/rr28287445q7mj03/xxlarge1088.gif) ![ucy](/content/rr28287445q7mj03/xxlarge1091.gif) ![zhcy](/content/rr28287445q7mj03/xxlarge1078.gif) ![icy](/content/rr28287445q7mj03/xxlarge1080.gif) ![lcy](/content/rr28287445q7mj03/xxlarge1083.gif) , ![chcy](/content/rr28287445q7mj03/xxlarge1095.gif) ![tcy](/content/rr28287445q7mj03/xxlarge1090.gif) ![pcy](/content/rr28287445q7mj03/xxlarge1087.gif) ![ocy](/content/rr28287445q7mj03/xxlarge1086.gif) ![scy](/content/rr28287445q7mj03/xxlarge1089.gif) ![lcy](/content/rr28287445q7mj03/xxlarge1083.gif) ![ocy](/content/rr28287445q7mj03/xxlarge1086.gif) ![kcy](/content/rr28287445q7mj03/xxlarge1082.gif) ![icy](/content/rr28287445q7mj03/xxlarge1080.gif) ![scy](/content/rr28287445q7mj03/xxlarge1089.gif) ![lcy](/content/rr28287445q7mj03/xxlarge1083.gif) ![iecy](/content/rr28287445q7mj03/xxlarge1077.gif) ![ncy](/content/rr28287445q7mj03/xxlarge1085.gif) ![icy](/content/rr28287445q7mj03/xxlarge1080.gif) ![pcy](/content/rr28287445q7mj03/xxlarge1087.gif) ![rcy](/content/rr28287445q7mj03/xxlarge1088.gif) 373 ![ecy](/content/rr28287445q7mj03/xxlarge1101.gif) ![tcy](/content/rr28287445q7mj03/xxlarge1090.gif) ![scy](/content/rr28287445q7mj03/xxlarge1089.gif) ![icy](/content/rr28287445q7mj03/xxlarge1080.gif) ![scy](/content/rr28287445q7mj03/xxlarge1089.gif) ![tcy](/content/rr28287445q7mj03/xxlarge1090.gif) ![iecy](/content/rr28287445q7mj03/xxlarge1077.gif) ![mcy](/content/rr28287445q7mj03/xxlarge1084.gif) ![vcy](/content/rr28287445q7mj03/xxlarge1074.gif) ![iecy](/content/rr28287445q7mj03/xxlarge1077.gif) ![dcy](/content/rr28287445q7mj03/xxlarge1076.gif) ![iecy](/content/rr28287445q7mj03/xxlarge1077.gif) ![scy](/content/rr28287445q7mj03/xxlarge1089.gif) ![iecy](/content/rr28287445q7mj03/xxlarge1077.gif) ![bcy](/content/rr28287445q7mj03/xxlarge1073.gif) ![pcy](/content/rr28287445q7mj03/xxlarge1087.gif) ![ocy](/content/rr28287445q7mj03/xxlarge1086.gif) ![dcy](/content/rr28287445q7mj03/xxlarge1076.gif) ![ocy](/content/rr28287445q7mj03/xxlarge1086.gif) ![bcy](/content/rr28287445q7mj03/xxlarge1073.gif) ![ncy](/content/rr28287445q7mj03/xxlarge1085.gif) Ru–Cu/SiO2. ![Vcy](/content/rr28287445q7mj03/xxlarge1042.gif) ![ycy](/content/rr28287445q7mj03/xxlarge1099.gif) ![scy](/content/rr28287445q7mj03/xxlarge1089.gif) ![ocy](/content/rr28287445q7mj03/xxlarge1086.gif) ![kcy](/content/rr28287445q7mj03/xxlarge1082.gif) ![ocy](/content/rr28287445q7mj03/xxlarge1086.gif) ![tcy](/content/rr28287445q7mj03/xxlarge1090.gif) ![iecy](/content/rr28287445q7mj03/xxlarge1077.gif) ![mcy](/content/rr28287445q7mj03/xxlarge1084.gif) ![pcy](/content/rr28287445q7mj03/xxlarge1087.gif) ![iecy](/content/rr28287445q7mj03/xxlarge1077.gif) ![rcy](/content/rr28287445q7mj03/xxlarge1088.gif) ![acy](/content/rr28287445q7mj03/xxlarge1072.gif) ![tcy](/content/rr28287445q7mj03/xxlarge1090.gif) ![ucy](/content/rr28287445q7mj03/xxlarge1091.gif) ![rcy](/content/rr28287445q7mj03/xxlarge1088.gif) ![ncy](/content/rr28287445q7mj03/xxlarge1085.gif) ![ocy](/content/rr28287445q7mj03/xxlarge1086.gif) ![ocy](/content/rr28287445q7mj03/xxlarge1086.gif) ![kcy](/content/rr28287445q7mj03/xxlarge1082.gif) ![icy](/content/rr28287445q7mj03/xxlarge1080.gif) ![scy](/content/rr28287445q7mj03/xxlarge1089.gif) ![lcy](/content/rr28287445q7mj03/xxlarge1083.gif) ![iecy](/content/rr28287445q7mj03/xxlarge1077.gif) ![ncy](/content/rr28287445q7mj03/xxlarge1085.gif) ![icy](/content/rr28287445q7mj03/xxlarge1080.gif) , ![ocy](/content/rr28287445q7mj03/xxlarge1086.gif) ![dcy](/content/rr28287445q7mj03/xxlarge1076.gif) ![ncy](/content/rr28287445q7mj03/xxlarge1085.gif) ![acy](/content/rr28287445q7mj03/xxlarge1072.gif) ![kcy](/content/rr28287445q7mj03/xxlarge1082.gif) , ![ncy](/content/rr28287445q7mj03/xxlarge1085.gif) ![pcy](/content/rr28287445q7mj03/xxlarge1087.gif) ![rcy](/content/rr28287445q7mj03/xxlarge1088.gif) ![icy](/content/rr28287445q7mj03/xxlarge1080.gif) ![vcy](/content/rr28287445q7mj03/xxlarge1074.gif) ![ocy](/content/rr28287445q7mj03/xxlarge1086.gif) ![dcy](/content/rr28287445q7mj03/xxlarge1076.gif) ![icy](/content/rr28287445q7mj03/xxlarge1080.gif) ![vcy](/content/rr28287445q7mj03/xxlarge1074.gif) ![ycy](/content/rr28287445q7mj03/xxlarge1099.gif) ![dcy](/content/rr28287445q7mj03/xxlarge1076.gif) ![iecy](/content/rr28287445q7mj03/xxlarge1077.gif) ![lcy](/content/rr28287445q7mj03/xxlarge1083.gif) ![iecy](/content/rr28287445q7mj03/xxlarge1077.gif) ![ncy](/content/rr28287445q7mj03/xxlarge1085.gif) ![icy](/content/rr28287445q7mj03/xxlarge1080.gif) ![mcy](/content/rr28287445q7mj03/xxlarge1084.gif) ![iecy](/content/rr28287445q7mj03/xxlarge1077.gif) ![tcy](/content/rr28287445q7mj03/xxlarge1090.gif) ![acy](/content/rr28287445q7mj03/xxlarge1072.gif) ![lcy](/content/rr28287445q7mj03/xxlarge1083.gif) ![lcy](/content/rr28287445q7mj03/xxlarge1083.gif) , ![kcy](/content/rr28287445q7mj03/xxlarge1082.gif) ![acy](/content/rr28287445q7mj03/xxlarge1072.gif) ![scy](/content/rr28287445q7mj03/xxlarge1089.gif) ![lcy](/content/rr28287445q7mj03/xxlarge1083.gif) ![ucy](/content/rr28287445q7mj03/xxlarge1091.gif) ![chcy](/content/rr28287445q7mj03/xxlarge1095.gif) ![acy](/content/rr28287445q7mj03/xxlarge1072.gif) Ru–Cu, ![rcy](/content/rr28287445q7mj03/xxlarge1088.gif) ![iecy](/content/rr28287445q7mj03/xxlarge1077.gif) ![dcy](/content/rr28287445q7mj03/xxlarge1076.gif) ![icy](/content/rr28287445q7mj03/xxlarge1080.gif) ![scy](/content/rr28287445q7mj03/xxlarge1089.gif) ![pcy](/content/rr28287445q7mj03/xxlarge1087.gif) ![iecy](/content/rr28287445q7mj03/xxlarge1077.gif) ![rcy](/content/rr28287445q7mj03/xxlarge1088.gif) ![scy](/content/rr28287445q7mj03/xxlarge1089.gif) ![icy](/content/rr28287445q7mj03/xxlarge1080.gif) Ag ![ncy](/content/rr28287445q7mj03/xxlarge1085.gif) ![pcy](/content/rr28287445q7mj03/xxlarge1087.gif) ![ocy](/content/rr28287445q7mj03/xxlarge1086.gif) ![vcy](/content/rr28287445q7mj03/xxlarge1074.gif) ![iecy](/content/rr28287445q7mj03/xxlarge1077.gif) ![rcy](/content/rr28287445q7mj03/xxlarge1088.gif) ![khcy](/content/rr28287445q7mj03/xxlarge1093.gif) ![ncy](/content/rr28287445q7mj03/xxlarge1085.gif) ![ocy](/content/rr28287445q7mj03/xxlarge1086.gif) ![scy](/content/rr28287445q7mj03/xxlarge1089.gif) ![tcy](/content/rr28287445q7mj03/xxlarge1090.gif) ![chcy](/content/rr28287445q7mj03/xxlarge1095.gif) ![acy](/content/rr28287445q7mj03/xxlarge1072.gif) ![scy](/content/rr28287445q7mj03/xxlarge1089.gif) ![tcy](/content/rr28287445q7mj03/xxlarge1090.gif) ![icy](/content/rr28287445q7mj03/xxlarge1080.gif) Ru.
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