CO oxidation catalyzed by ag nanoparticles supported on SnO/CeO2

Handle URI:
http://hdl.handle.net/10754/563959
Title:
CO oxidation catalyzed by ag nanoparticles supported on SnO/CeO2
Authors:
Khan, Inayatali; Sajid, Nida K M; Badshah, Amin; Wattoo, Muhammad Hamid Sarwar; Anjum, Dalaver H.; Nadeem, Muhammad Amtiaz
Abstract:
Ag-Sn/CeO2 catalysts were synthesized by the co-precipitation method with different Ag-Sn wt.% loadings and were tested for the oxidation of CO. The catalysts were characterized by powder X-ray diffractometry (XRD), scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM), energy dispersive X-ray spectroscopy (EDS), and selected area electron diffraction (SAED) techniques. UV-Vis measurements were carried out to elucidate the ionic states of the silver particles, and the temperature-programmed reduction (TPR) technique was employed to check the reduction temperature of the catalyst supported on CeO2. There are peaks for silver crystallites in the X-ray diffraction patterns and the presence of SnO was not well evidenced by the XRD technique due to sintering inside the 3D array channels of CeO2 during the calcination process. The Ag-Sn/CeO2 (4%) catalyst was the most efficient and exhibited 100% CO oxidation at 100 °C due to small particle size and strong electronic interaction with the SnO/CeO2 support. © 2015 Sociedade Brasileira de Química.
KAUST Department:
Advanced Nanofabrication, Imaging and Characterization Core Lab; Core Labs
Publisher:
Sociedade Brasileira de Quimica (SBQ)
Journal:
Journal of the Brazilian Chemical Society
Issue Date:
2015
DOI:
10.5935/0103-5053.20150028
Type:
Article
ISSN:
01035053
Sponsors:
This work was supported by the Higher Education Commission (HEC) of Pakistan (No. 20-1638/ R&D/09/2900). The authors thank PhD Dalaver Hussain Anjum (KAUST Saudi Arabia) for high resolution TEM and SAED analyses.
Appears in Collections:
Articles; Advanced Nanofabrication, Imaging and Characterization Core Lab

Full metadata record

DC FieldValue Language
dc.contributor.authorKhan, Inayatalien
dc.contributor.authorSajid, Nida K Men
dc.contributor.authorBadshah, Aminen
dc.contributor.authorWattoo, Muhammad Hamid Sarwaren
dc.contributor.authorAnjum, Dalaver H.en
dc.contributor.authorNadeem, Muhammad Amtiazen
dc.date.accessioned2015-08-03T12:20:54Zen
dc.date.available2015-08-03T12:20:54Zen
dc.date.issued2015en
dc.identifier.issn01035053en
dc.identifier.doi10.5935/0103-5053.20150028en
dc.identifier.urihttp://hdl.handle.net/10754/563959en
dc.description.abstractAg-Sn/CeO2 catalysts were synthesized by the co-precipitation method with different Ag-Sn wt.% loadings and were tested for the oxidation of CO. The catalysts were characterized by powder X-ray diffractometry (XRD), scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM), energy dispersive X-ray spectroscopy (EDS), and selected area electron diffraction (SAED) techniques. UV-Vis measurements were carried out to elucidate the ionic states of the silver particles, and the temperature-programmed reduction (TPR) technique was employed to check the reduction temperature of the catalyst supported on CeO2. There are peaks for silver crystallites in the X-ray diffraction patterns and the presence of SnO was not well evidenced by the XRD technique due to sintering inside the 3D array channels of CeO2 during the calcination process. The Ag-Sn/CeO2 (4%) catalyst was the most efficient and exhibited 100% CO oxidation at 100 °C due to small particle size and strong electronic interaction with the SnO/CeO2 support. © 2015 Sociedade Brasileira de Química.en
dc.description.sponsorshipThis work was supported by the Higher Education Commission (HEC) of Pakistan (No. 20-1638/ R&D/09/2900). The authors thank PhD Dalaver Hussain Anjum (KAUST Saudi Arabia) for high resolution TEM and SAED analyses.en
dc.publisherSociedade Brasileira de Quimica (SBQ)en
dc.subjectCo-precipitationen
dc.subjectCrystallitesen
dc.subjectEnergy dispersive X-ray spectroscopyen
dc.subjectReducibilityen
dc.titleCO oxidation catalyzed by ag nanoparticles supported on SnO/CeO2en
dc.typeArticleen
dc.contributor.departmentAdvanced Nanofabrication, Imaging and Characterization Core Laben
dc.contributor.departmentCore Labsen
dc.identifier.journalJournal of the Brazilian Chemical Societyen
dc.contributor.institutionQuaid I Azam Univ, Dept Chem, Catalysis & Nanomat Lab 27, Islamabad 45320, Pakistanen
kaust.authorAnjum, Dalaver H.en
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