Catalytic consequences of cation and anion substitutions on rate and mechanism of oxidative coupling of methane over hydroxyapatite catalysts

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• 作者：Su Cheun Oh^a ; Yu Lei^b ; Huiyong Chen^c ; Dongxia Liu^a ; ^liud@umd.edu
• 关键词：Hydroxyapatite ; Anion and cation substitution ; Oxidative coupling of methane ; Pb-hydroxyapatite ; Kinetics
• 刊名：Fuel
• 出版年：2017
• 出版时间：1 March 2017
• 年：2017
• 卷：191
• 期：Complete
• 页码：472-485
• 全文大小：1964 K
• 卷排序：191

文摘

Pb2+, F− and both substitutions in hydroxyapatite (HAP) were studied. Both Pb2+ and F− substitutions in HAP favored C2H6 formation. Kinetics of primary reactions on Pb-HAP and Pb-HAP-F was analyzed by Eley-Rideal mechanism. Kinetics of primary reactions on HAP and HAP-F was analyzed by Langmuir-Hinshelwood mechanism. Composition-catalytic performance correlations for HAP-based catalysts were established.