Ba addition promoted the hydrothermal stability of Pd/CeO catalyst for CO oxidation by the steric effect on Pd. 2+ Keywords Pd/CeO · Ba · Hydrothermal stability · CO oxidation · Oxidized Pd 1 Introduction Electronic supplementary material The online version of this article (https ://doi.org/10.1007/s1056 2-018-2426-0) contains Platinum group metals are extensively used in diesel oxida- supplementary material, which is available to authorized users. tion catalysts due to their favorable performances to oxidize * Meiqing Shen CO and hydrocarbons [1–4]. However, in diesel applications, firstname.lastname@example.org the precious metals are easy to aggregate when suffering severe hydrothermal condition during operation under high Key Laboratory for Green Chemical Technology of State engine loads or periodic regeneration of the diesel particu- Education Ministry, School of Chemical Engineering & Technology, Tianjin University, Tianjin 300072, late filter, resulting in a sharp decline in catalytic activity. As People’s Republic of China a consequence, the utilization of precious metals decreases. Collaborative Innovation Center of Chemical The current approach is to use enough precious metals to Science and Engineering (Tianjin), Tianjin 300072, guarantee the efficiency of exhaust purification, but it cer - People’s Republic of China tainly enhances the cost of catalysts. Therefore, promoting State Key Laboratory of Engines, Tianjin University, the stability of catalysts under harsh hydrothermal condition Tianjin 300072, People’s Republic of China Vol:.(1234567890) 1 3
Catalysis Letters – Springer Journals
Published: Jun 1, 2018
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