کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
52923 | 46892 | 2009 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
In situ DRIFTS study on the partial oxidation of ethylene over Co-ZSM-5 catalyst
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
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چکیده انگلیسی
The interaction of C2H4 and C2H4 + O2 with Co-ZSM-5 has been studied by in situ diffuse reflectance infrared fourier transform spectroscopy (DRIFTS). XRD, UV–vis and H2–TPR were used for characterizing the Co-ZSM-5 samples. DRIFTS results showed that a partial oxidation of ethylene over Co-ZSM-5 occurred at definite temperatures(⩾250 °C), leading to the formation of formate species in the presence or absence of gas phase oxygen. Investigation on active sites in Co-ZSM-5 by using NO as probe molecules revealed that a reduction of Co3+ to Co2+ occurred during reaction and Co3+ (presenting in Co3O4) were primarily responsible for the oxidation of ethylene.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Catalysis Communications - Volume 10, Issue 5, 25 January 2009, Pages 428–432
Journal: Catalysis Communications - Volume 10, Issue 5, 25 January 2009, Pages 428–432
نویسندگان
Xiao-Mei Chen, Xue-Feng Yang, Ai-Min Zhu, Hong-Yu Fan, Xin-Kui Wang, Qin Xin, Xin-Rui Zhou, Chuan Shi,