کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5349177 1503614 2015 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fabrication of porous carbon spheres and as support for the application of low-temperature CO oxidation
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Fabrication of porous carbon spheres and as support for the application of low-temperature CO oxidation
چکیده انگلیسی
In this paper, a series of CSs (CSs was the abbreviation of carbon sphere) was synthesized by surfactants-assisted hydrothermal method, and these CSs were used as support to load metal active species for low-temperature oxidation of CO. By adjusting surfactant type and content, hydrothermal time and temperature, the optimal prepared condition of catalyst were achieved: polyvinylpyrrolidone (PVP) content = 3%, hydrothermal time = 7 h, and hydrothermal temperature = 180 °C. Contrasted Pd-Fe/CSs catalyst with Pd-Fe/CSs-PVP-S (Pd-Fe/CSs-PVP-S was abbreviation for the optimal catalyst) catalyst, it was discovered that CSs-PVP-S owned smaller particle size and higher surface area than CSs. The surface of Pd-Fe/CSs-PVP-S catalyst had rich active oxygen species, more FeO(OH) species and more tetravalent Pd species than the Pd-Fe/CSs catalyst, which vividly demonstrated that the Pd-Fe/CSs-PVP-S catalyst displayed superior activity than Pd-Fe/CSs.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 350, 30 September 2015, Pages 100-108
نویسندگان
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