کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
62752 47654 2008 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Ceria-catalyzed soot oxidation studied by environmental transmission electron microscopy
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
پیش نمایش صفحه اول مقاله
Ceria-catalyzed soot oxidation studied by environmental transmission electron microscopy
چکیده انگلیسی

Environmental transmission electron microscopy (ETEM) was used to monitor in situ ceria-catalyzed oxidation of soot in relation to diesel engine emission control. From time-lapsed ETEM image series of soot particles in contact with CeO2, or with Al2O3 as inert reference, mechanistic and kinetic insight into the catalytic and noncatalytic oxidation mechanisms was obtained. Specifically, the results indicate that the catalytic soot oxidation mechanism involves reaction centers at the soot–CeO2 interface and that the interface reaction kinetic properties are in good agreement with previous macroscopic, averaging measurements.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Catalysis - Volume 255, Issue 1, 1 April 2008, Pages 1–5
نویسندگان
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