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المؤلفZedan, Abdallah F.
المؤلفMohamed, Assem T.
المؤلفEl-Shall, M. Samy
المؤلفAlQaradawi, Siham Y.
المؤلفAlJaber, Amina S.
تاريخ الإتاحة2024-03-25T06:42:38Z
تاريخ النشر2018
اسم المنشورRSC Advances
المصدرScopus
الرقم المعياري الدولي للكتاب20462069
معرّف المصادر الموحدhttp://dx.doi.org/10.1039/c8ra03623c
معرّف المصادر الموحدhttp://hdl.handle.net/10576/53403
الملخصCopper oxide (CuO) nanoparticles have received considerable interest as active and inexpensive catalysts for various gas–solid reactions. The CuO reducibility and surface reactivity are of crucial importance for the high catalytic activity. Herein, we demonstrate that the reducibility and stability of CuO nanoparticles can be controlled and tailored for the high catalytic activity of CO oxidation. The synthesized CuO nanoparticles possessed enhanced reducibility in CO atmosphere at lower reduction temperature of 126 °C compared to 284 °C for that of reference CuO particles. Moreover, the CuO catalysts with tailored reducibility demonstrated a reaction rate of 35 μmol s−1 g−1 and an apparent activation energy of 75 kJ mol−1. Furthermore, the tailored catalysts exhibited excellent long-term stability for CO oxidation for up to 48 h on stream. These readily-reducible CuO nanoparticles could serve as efficient, inexpensive and durable catalysts for CO oxidation at low temperatures.
راعي المشروعThis work was made possible by the grant number NPRP 8-1912-1-354 from the Qatar National Research Fund (a member of Qatar Foundation). The statements made herein are solely the responsibility of the authors. The authors would like to thank Mr Mahmoud M. Tarfaya and Mr Belal S. Hussien for their assistance in the laboratory.
اللغةen
الناشرRoyal Society of Chemistry
الموضوعActivation energy
Atmospheric temperature
Catalytic oxidation
Copper oxides
Nanoparticles
Oxidation
Synthesis (chemical)
Apparent activation energy
CuO nanoparticles
Gas-solid reaction
Long term stability
Low temperatures
Low-temperature CO oxidation
Reduction temperatures
Surface reactivity
Catalyst activity
العنوانTailoring the reducibility and catalytic activity of CuO nanoparticles for low temperature CO oxidation
النوعArticle
الصفحات19499-19511
رقم العدد35
رقم المجلد8
dc.accessType Open Access


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