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المؤلفIpadeola, Adewale K.
المؤلفEid, Kamel
المؤلفAbdullah, Aboubakr M.
المؤلفOzoemena, Kenneth I.
تاريخ الإتاحة2023-01-08T08:27:18Z
تاريخ النشر2022
اسم المنشورLangmuir
المصدرScopus
معرّف المصادر الموحدhttp://dx.doi.org/10.1021/acs.langmuir.2c01841
معرّف المصادر الموحدhttp://hdl.handle.net/10576/38150
الملخصRational synthesis of Co-ZIF-67 metal-organic framework (MOF)-derived carbon-supported metal nanoparticles is essential for various energy and environmental applications; however, their catalytic activity toward carbon monoxide (CO) oxidation in various electrolytes is not yet emphasized. Co-ZIF-67-derived hierarchical porous carbon nanosheet-supported Pd nanocrystals (Pd/ZIF-67/C) were prepared using a simple microwave-irradiation approach followed by carbonization and etching. Mechanistically, during microwave irradiation, triethyleneamine provides abundant reducing gases that promote the formation of Pd nanoparticles/Co-Nxin porous carbon nanosheets with the assistance of ethylene glycol and also form a multimodal pore size. The electrocatalytic CO oxidation activity and stability of Pd/ZIF-67/C outperformed those of commercial Pd/C and Pt/C catalysts by (4.2 and 4.4, 4.0 and 2.7, 3.59 and 2.7) times in 0.1 M HClO4, 0.1 M KOH, and 0.1 M NaHCO3, respectively, due to the catalytic properties of Pd besides the conductivity of Co-Nxactive sites and delicate porous structures of ZIF-67. Notably, using Pd/ZIF-67/C results in a higher CO oxidation activity than Pd/C and Pt/C. This study may pave the way for using MOF-supported multi-metallic nanoparticles for CO oxidation electrocatalysis. 2022 American Chemical Society. All rights reserved.
راعي المشروعThis work was supported by the Qatar University Internal Grant (QUHI-CAM-22/23-550), Qatar National Research Fund (NPRP13S-0117-200095), and NRF/DSI/Wits SARChI Chair in Materials Electrochemistry and Energy Technologies (MEET) (UID No. 132739). The authors are grateful to the Environmental Science Center (ESC), Qatar University for the ICP-OES analysis.
اللغةen
الناشرAmerican Chemical Society
الموضوعCarbon monoxide
Carbonization
Catalyst activity
Catalytic oxidation
Electrocatalysis
Electrocatalysts
Etching
Ethylene
Ethylene glycol
Irradiation
Metal nanoparticles
Metal-Organic Frameworks
Nanosheets
Palladium
Palladium compounds
Platinum compounds
Pore size
Porous materials
Potassium hydroxide
Synthesis (chemical)
Carbon monoxide oxidation
Carbon nanosheets
Derived carbons
Embedded metals
Hierarchical porous carbons
Metalorganic frameworks (MOFs)
Microwave- irradiations
Oxidation activities
Pd nanoparticles
Rational synthesis
Electrolytes
العنوانPd-Nanoparticles Embedded Metal-Organic Framework-Derived Hierarchical Porous Carbon Nanosheets as Efficient Electrocatalysts for Carbon Monoxide Oxidation in Different Electrolytes
النوعArticle
الصفحات11109-11120
رقم العدد36
رقم المجلد38
dc.accessType Abstract Only


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