Activation of small molecules over praseodymium-doped ceria

作     者：Meiling Guo Xuebin Liu 郭美玲;刘雪斌;Amorelli Angelo

作者机构：Energy Innovation Laboratory BP (China) Dalian Office Dalian 116023 Liaoning China Group Research BP International Sunbury TW16 7LN United Kingdom 

出 版 物：《Chinese Journal of Catalysis》 (催化学报（英文）)

年 卷 期：2019年第40卷第11期

页      面：1800-1809页

核心收录：

学科分类：081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术] 

基　　金：BP International Dalian Institute of Chemical Physics, DICP 

主　　题：CeO2 Pr dopant Oxygen vacancy Degree of reduction Propane dehydrogenation 

摘      要：Praseodymium can modify the properties of ceria (CeO2), changing the electronic structure, reducibility and catalytic behavior. Oxygen vacancies in the ceria-based samples can activate C–O and C–H bonds of small molecules such as CO2 and propane. Partially reduced Pr/CeO2-x can selectively activate C–H of propane, giving a propylene selectivity of ca. 75% at a propane conversion of 5% to 10%. Excess reduction of Pr/CeO2-x induces coking reactions during propane dehydrogenation, resulting in fast catalyst deactivation.