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Citation: Meiling Guo, Xuebin Liu, Angelo Amorelli. Activation of small molecules over praseodymium-doped ceria[J]. Chinese Journal of Catalysis, ;2019, 40(11): 1800-1809. doi: S1872-2067(19)63369-3 shu

Activation of small molecules over praseodymium-doped ceria

a Energy Innovation Laboratory, BP (China) Dalian Office, Dalian 116023, Liaoning, China;
b Group Research, BP International, Sunbury, TW16 7LN, United Kingdom

Received Date: 29 January 2019
Revised Date: 4 April 2019

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/CeO_2-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/CeO_2-x induces coking reactions during propane dehydrogenation, resulting in fast catalyst deactivation.
- CeO₂,
- Pr dopant,
- Oxygen vacancy,
- Degree of reduction,
- Propane dehydrogenation
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