کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4454251 | 1620825 | 2015 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Oxidation of diesel soot on binary oxide CuCr(Co)-based monoliths
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
علوم زیست محیطی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Oxidation of diesel soot on binary oxide CuCr(Co)-based monoliths Oxidation of diesel soot on binary oxide CuCr(Co)-based monoliths](/preview/png/4454251.png)
چکیده انگلیسی
Binary oxide systems (CuCr2O4, CuCo2O4), deposited onto cordierite monoliths of honeycomb structure with a second support (finely dispersed Al2O3), were prepared as filters for catalytic combustion of diesel soot using internal combustion engine's gas exhausts (O2, NOx, H2O, CO2) and O3 as oxidizing agents. It is shown that the second support increases soot capacity of aforementioned filters, and causes dispersion of the particles of spinel phases as active components enhancing thereby catalyst activity and selectivity of soot combustion to CO2. Oxidants used can be arranged with reference to decreasing their activity in a following series: O3Â â«Â NO2Â >Â H2OÂ >Â NOÂ >Â O2Â >Â CO2. Ozone proved to be the most efficient oxidizing agent: the diesel soot combustion by O3 occurs intensively (in the presence of copper chromite based catalyst) even at closing to ambient temperatures. Results obtained give a basis for the conclusion that using a catalytic coating on soot filters in the form of aforementioned binary oxide systems and ozone as the initiator of the oxidation processes is a promising approach in solving the problem of comprehensive purification of automotive exhaust gases at relatively low temperatures, known as the “cold start” problem.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Environmental Sciences - Volume 28, 1 February 2015, Pages 171-177
Journal: Journal of Environmental Sciences - Volume 28, 1 February 2015, Pages 171-177
نویسندگان
Sergiy O. Soloviev, Andriy Y. Kapran, Yaroslava P. Kurylets,