این سایت در حال حاضر پشتیبانی نمی شود و امکان دارد داده های نشریات بروز نباشند
Physical Chemistry Research، جلد ۵، شماره ۴، صفحات ۷۲۷-۷۳۶
عنوان فارسی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی Mechanism Discrimination for Bimolecular Reactions: Revisited with a Practical Hydrogenation Case Study
چکیده انگلیسی مقاله The governing mechanism of surface reactions is a fundamental concern in heterogeneous catalysis. The Langmuir–Hinshelwood (LH) mechanism is widely accepted to control the surface reactions in many catalytic systems. This contribution derives and compares several important surface rate equations to evaluate their quality of fitting to the experimental data collected for a vapor-phase hydrogenation case study to produce furfuryl alcohol over supported copper catalysts. Meanwhile, a few essential but less addressed issues in determining the surface reaction mechanism were underlined. It is established that the Eley–Rideal mechanism would be equally (if not more) viable compared to the LH rate model all with coefficients of multiple determination larger than 97%, a conclusion in some contradiction with the common assumption of the previous publications for this case study. This investigation further highlighted that a good fit to any rate expression should not be taken as a proof of the assumed mechanism unless the opponent cases are tested within adequately wide ranges of concentrations.
کلیدواژه‌های انگلیسی مقاله
نویسندگان مقاله سمیرا شیروانی |
biomass conversion science and technology bcst division, iran polymer and petrochemical institute, p.o. box 14975-115, tehran, iran

محمد قشقایی |
iran polymer and petrochemical institute

نشانی اینترنتی http://www.physchemres.org/article_49273_b43b9b7add30d7cf59fb8a2a91f2c39d.pdf
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/529/article-529-485554.pdf
کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده
نوع مقاله منتشر شده
برگشت به: صفحه اول پایگاه   |   نسخه مرتبط   |   نشریه مرتبط   |   فهرست نشریات