Sintering behavior of platinum and modification effect of ceria on silica-alumina supports for diesel soot oxidation

Shuran Liu,Taojin Wang,Xiaodong Wu,Yue Ma,Rui Ran,Duan Weng,Shuang Liu

Applied Surface Science（2023）

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摘要

•Nano Pt catalysts on different supports are prepared by chemical reduction method.•Pt sinters more readily on SiO2-Al2O3 due to weak metal-support interactions.•Ceria modification effectively inhibits sintering of Pt on silica-alumina support.•Pt/CeO2-SiO2-Al2O3 shows optimized soot oxidation activity and thermal stability.

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关键词

Platinum,Acidic support,Soot catalytic oxidation,Sintering,CeO2 addition

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