کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
59721 1419442 2014 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Growth mechanism of N-doped graphene materials and their catalytic behavior in the selective oxidation of ethylbenzene
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
پیش نمایش صفحه اول مقاله
Growth mechanism of N-doped graphene materials and their catalytic behavior in the selective oxidation of ethylbenzene
چکیده انگلیسی

N-doped graphene materials were prepared from both inorganic and organic nitrogen sources and pyrolytic graphene oxide as the carbon substrate. Transmission electron microscopy, scanning electron microscopy, Raman spectroscopy, and X-ray photoelectron spectroscopy were used to investigate the detailed growth mechanism of the N species in these N-doped graphene materials. The different chemical nature and binding energy of the different N species resulted in their different trends with annealing temperature. These N-doped graphene are excellent catalysts in the oxidation of ethylbenzene. A high yield of acetonphenone did not depend on the total nitrogen amount but only on the type of nitrogen species. Too much defects and N-dopants were detrimental to this reaction. A proper activation of the oxidant is needed to get good catalytic activity.

Graphical AbstractGrowth mechanisms of N-doped graphene materials, which are good catalysts in the selective oxidation of ethylbenzene, were investigated. The kinetic control of the decomposition of the oxidants is important in this reaction.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chinese Journal of Catalysis - Volume 35, Issue 6, June 2014, Pages 922–928
نویسندگان
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