کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
56598 47088 2011 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
High-throughput approach to the catalytic combustion of diesel soot II: Screening of oxide-based catalysts
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
پیش نمایش صفحه اول مقاله
High-throughput approach to the catalytic combustion of diesel soot II: Screening of oxide-based catalysts
چکیده انگلیسی

Following the development of a high-throughput (HT) methodology for the evaluation of diesel soot oxidation catalysts in a 16 parallel channels reactor, a library of over 60 catalysts was tested under optimized conditions. The catalyst compositions were chosen to include solids which specific properties like oxygen storage capacity, oxygen mobility and ionic conductivity. The key parameters for high activity appear related to the presence of active and mobile surface oxygen species, and to an appropriate catalyst particle size in order to favour the number of contacts with the soot. In contrast, high oxygen storage capacity and bulk oxygen ion mobility do not appear as relevant properties for high catalytic activity. Nine new formulations were found to perform better than the reference catalyst “high surface area (HSA) ceria” (Rhodia).

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Catalysis Today - Volume 159, Issue 1, 10 January 2011, Pages 138–143
نویسندگان
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