Enhancement of H2- and retardation of O2-adsorption during O2?H2 titration cycles on Pt?Al2O3 catalyst surfaces |
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Authors: | J Prasad K R Murthy and P G Menon |
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Institution: | (1) Research and Development Centre, Indian Petrochemicals Corporation Ltd., 391346 Baroda, India;(2) Present address: Laboratorium voor Petrochemische Techniek, Rijksuniversiteit Gent, Krijgslaan, 271 9000 Gent, Belgium |
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Abstract: | The title effects can be eliminated if the slow bleeding of H2 from freshly reduced CuO-towers (often used as O2-getters in purifying N2 carrier gas) can be avoided, then H2–O2 titrations of Pt surfaces give consistent values from almost the first titration. Water injected at 25 °C also hardly affects the titer values.
![Ecy](/content/hv08449x87209781/xxlarge1069.gif) ![fcy](/content/hv08449x87209781/xxlarge1092.gif) ![fcy](/content/hv08449x87209781/xxlarge1092.gif) ![iecy](/content/hv08449x87209781/xxlarge1077.gif) ![kcy](/content/hv08449x87209781/xxlarge1082.gif) ![tcy](/content/hv08449x87209781/xxlarge1090.gif) ![ucy](/content/hv08449x87209781/xxlarge1091.gif) ![scy](/content/hv08449x87209781/xxlarge1089.gif) ![kcy](/content/hv08449x87209781/xxlarge1082.gif) ![ocy](/content/hv08449x87209781/xxlarge1086.gif) ![rcy](/content/hv08449x87209781/xxlarge1088.gif) ![iecy](/content/hv08449x87209781/xxlarge1077.gif) ![ncy](/content/hv08449x87209781/xxlarge1085.gif) ![icy](/content/hv08449x87209781/xxlarge1080.gif) ![acy](/content/hv08449x87209781/xxlarge1072.gif) ![dcy](/content/hv08449x87209781/xxlarge1076.gif) ![scy](/content/hv08449x87209781/xxlarge1089.gif) ![ocy](/content/hv08449x87209781/xxlarge1086.gif) ![rcy](/content/hv08449x87209781/xxlarge1088.gif) 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![icy](/content/hv08449x87209781/xxlarge1080.gif) O2 ![mcy](/content/hv08449x87209781/xxlarge1084.gif) ![ocy](/content/hv08449x87209781/xxlarge1086.gif) ![gcy](/content/hv08449x87209781/xxlarge1075.gif) ![ucy](/content/hv08449x87209781/xxlarge1091.gif) ![bcy](/content/hv08449x87209781/xxlarge1073.gif) ![ycy](/content/hv08449x87209781/xxlarge1099.gif) ![tcy](/content/hv08449x87209781/xxlarge1090.gif) ![ucy](/content/hv08449x87209781/xxlarge1091.gif) ![scy](/content/hv08449x87209781/xxlarge1089.gif) ![tcy](/content/hv08449x87209781/xxlarge1090.gif) ![rcy](/content/hv08449x87209781/xxlarge1088.gif) ![acy](/content/hv08449x87209781/xxlarge1072.gif) ![ncy](/content/hv08449x87209781/xxlarge1085.gif) ![iecy](/content/hv08449x87209781/xxlarge1077.gif) ![ncy](/content/hv08449x87209781/xxlarge1085.gif) , ![iecy](/content/hv08449x87209781/xxlarge1077.gif) ![scy](/content/hv08449x87209781/xxlarge1089.gif) ![lcy](/content/hv08449x87209781/xxlarge1083.gif) 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![kcy](/content/hv08449x87209781/xxlarge1082.gif) H2 ![scy](/content/hv08449x87209781/xxlarge1089.gif) ![scy](/content/hv08449x87209781/xxlarge1089.gif) ![vcy](/content/hv08449x87209781/xxlarge1074.gif) ![iecy](/content/hv08449x87209781/xxlarge1077.gif) ![zhcy](/content/hv08449x87209781/xxlarge1078.gif) ![vcy](/content/hv08449x87209781/xxlarge1074.gif) ![ocy](/content/hv08449x87209781/xxlarge1086.gif) ![scy](/content/hv08449x87209781/xxlarge1089.gif) ![scy](/content/hv08449x87209781/xxlarge1089.gif) ![tcy](/content/hv08449x87209781/xxlarge1090.gif) ![acy](/content/hv08449x87209781/xxlarge1072.gif) ![ncy](/content/hv08449x87209781/xxlarge1085.gif) ![ocy](/content/hv08449x87209781/xxlarge1086.gif) ![vcy](/content/hv08449x87209781/xxlarge1074.gif) ![lcy](/content/hv08449x87209781/xxlarge1083.gif) ![iecy](/content/hv08449x87209781/xxlarge1077.gif) ![ncy](/content/hv08449x87209781/xxlarge1085.gif) ![ncy](/content/hv08449x87209781/xxlarge1085.gif) 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![rcy](/content/hv08449x87209781/xxlarge1088.gif) ![acy](/content/hv08449x87209781/xxlarge1072.gif) ![zcy](/content/hv08449x87209781/xxlarge1079.gif) ![ocy](/content/hv08449x87209781/xxlarge1086.gif) H2–O2 ![tcy](/content/hv08449x87209781/xxlarge1090.gif) ![icy](/content/hv08449x87209781/xxlarge1080.gif) ![tcy](/content/hv08449x87209781/xxlarge1090.gif) ![rcy](/content/hv08449x87209781/xxlarge1088.gif) ![ocy](/content/hv08449x87209781/xxlarge1086.gif) ![vcy](/content/hv08449x87209781/xxlarge1074.gif) ![kcy](/content/hv08449x87209781/xxlarge1082.gif) ![pcy](/content/hv08449x87209781/xxlarge1087.gif) ![ocy](/content/hv08449x87209781/xxlarge1086.gif) ![vcy](/content/hv08449x87209781/xxlarge1074.gif) ![iecy](/content/hv08449x87209781/xxlarge1077.gif) ![rcy](/content/hv08449x87209781/xxlarge1088.gif) ![khcy](/content/hv08449x87209781/xxlarge1093.gif) ![ncy](/content/hv08449x87209781/xxlarge1085.gif) ![ocy](/content/hv08449x87209781/xxlarge1086.gif) ![scy](/content/hv08449x87209781/xxlarge1089.gif) ![tcy](/content/hv08449x87209781/xxlarge1090.gif) Pt ![dcy](/content/hv08449x87209781/xxlarge1076.gif) ![acy](/content/hv08449x87209781/xxlarge1072.gif) ![iecy](/content/hv08449x87209781/xxlarge1077.gif) ![khcy](/content/hv08449x87209781/xxlarge1093.gif) ![ocy](/content/hv08449x87209781/xxlarge1086.gif) ![rcy](/content/hv08449x87209781/xxlarge1088.gif) ![ocy](/content/hv08449x87209781/xxlarge1086.gif) ![shcy](/content/hv08449x87209781/xxlarge1096.gif) ![scy](/content/hv08449x87209781/xxlarge1089.gif) ![ocy](/content/hv08449x87209781/xxlarge1086.gif) ![gcy](/content/hv08449x87209781/xxlarge1075.gif) ![lcy](/content/hv08449x87209781/xxlarge1083.gif) ![acy](/content/hv08449x87209781/xxlarge1072.gif) ![scy](/content/hv08449x87209781/xxlarge1089.gif) ![ucy](/content/hv08449x87209781/xxlarge1091.gif) ![yucy](/content/hv08449x87209781/xxlarge1102.gif) ![shchcy](/content/hv08449x87209781/xxlarge1097.gif) ![icy](/content/hv08449x87209781/xxlarge1080.gif) ![iecy](/content/hv08449x87209781/xxlarge1077.gif) ![scy](/content/hv08449x87209781/xxlarge1089.gif) ![rcy](/content/hv08449x87209781/xxlarge1088.gif) ![iecy](/content/hv08449x87209781/xxlarge1077.gif) ![zcy](/content/hv08449x87209781/xxlarge1079.gif) ![ucy](/content/hv08449x87209781/xxlarge1091.gif) ![lcy](/content/hv08449x87209781/xxlarge1083.gif) ![softcy](/content/hv08449x87209781/xxlarge1100.gif) ![tcy](/content/hv08449x87209781/xxlarge1090.gif) ![acy](/content/hv08449x87209781/xxlarge1072.gif) ![tcy](/content/hv08449x87209781/xxlarge1090.gif) ![pcy](/content/hv08449x87209781/xxlarge1087.gif) ![ocy](/content/hv08449x87209781/xxlarge1086.gif) ![chcy](/content/hv08449x87209781/xxlarge1095.gif) ![tcy](/content/hv08449x87209781/xxlarge1090.gif) ![pcy](/content/hv08449x87209781/xxlarge1087.gif) ![iecy](/content/hv08449x87209781/xxlarge1077.gif) ![rcy](/content/hv08449x87209781/xxlarge1088.gif) ![vcy](/content/hv08449x87209781/xxlarge1074.gif) ![ocy](/content/hv08449x87209781/xxlarge1086.gif) ![gcy](/content/hv08449x87209781/xxlarge1075.gif) ![tcy](/content/hv08449x87209781/xxlarge1090.gif) ![icy](/content/hv08449x87209781/xxlarge1080.gif) ![tcy](/content/hv08449x87209781/xxlarge1090.gif) ![rcy](/content/hv08449x87209781/xxlarge1088.gif) ![ocy](/content/hv08449x87209781/xxlarge1086.gif) ![vcy](/content/hv08449x87209781/xxlarge1074.gif) ![acy](/content/hv08449x87209781/xxlarge1072.gif) ![ncy](/content/hv08449x87209781/xxlarge1085.gif) ![icy](/content/hv08449x87209781/xxlarge1080.gif) . ![Vcy](/content/hv08449x87209781/xxlarge1042.gif) ![ocy](/content/hv08449x87209781/xxlarge1086.gif) ![dcy](/content/hv08449x87209781/xxlarge1076.gif) , ![pcy](/content/hv08449x87209781/xxlarge1087.gif) ![ocy](/content/hv08449x87209781/xxlarge1086.gif) ![dcy](/content/hv08449x87209781/xxlarge1076.gif) ![acy](/content/hv08449x87209781/xxlarge1072.gif) ![vcy](/content/hv08449x87209781/xxlarge1074.gif) ![acy](/content/hv08449x87209781/xxlarge1072.gif) ![iecy](/content/hv08449x87209781/xxlarge1077.gif) ![mcy](/content/hv08449x87209781/xxlarge1084.gif) ![acy](/content/hv08449x87209781/xxlarge1072.gif) ![pcy](/content/hv08449x87209781/xxlarge1087.gif) ![rcy](/content/hv08449x87209781/xxlarge1088.gif) 25° C, ![tcy](/content/hv08449x87209781/xxlarge1090.gif) ![acy](/content/hv08449x87209781/xxlarge1072.gif) ![kcy](/content/hv08449x87209781/xxlarge1082.gif) ![zhcy](/content/hv08449x87209781/xxlarge1078.gif) ![iecy](/content/hv08449x87209781/xxlarge1077.gif) ![dcy](/content/hv08449x87209781/xxlarge1076.gif) ![vcy](/content/hv08449x87209781/xxlarge1074.gif) ![vcy](/content/hv08449x87209781/xxlarge1074.gif) ![lcy](/content/hv08449x87209781/xxlarge1083.gif) ![icy](/content/hv08449x87209781/xxlarge1080.gif) ![yacy](/content/hv08449x87209781/xxlarge1103.gif) ![iecy](/content/hv08449x87209781/xxlarge1077.gif) ![ncy](/content/hv08449x87209781/xxlarge1085.gif) ![vcy](/content/hv08449x87209781/xxlarge1074.gif) ![iecy](/content/hv08449x87209781/xxlarge1077.gif) ![lcy](/content/hv08449x87209781/xxlarge1083.gif) ![icy](/content/hv08449x87209781/xxlarge1080.gif) ![chcy](/content/hv08449x87209781/xxlarge1095.gif) ![icy](/content/hv08449x87209781/xxlarge1080.gif) ![ncy](/content/hv08449x87209781/xxlarge1085.gif) ![tcy](/content/hv08449x87209781/xxlarge1090.gif) ![icy](/content/hv08449x87209781/xxlarge1080.gif) ![tcy](/content/hv08449x87209781/xxlarge1090.gif) ![rcy](/content/hv08449x87209781/xxlarge1088.gif) .
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