TY - JOUR
T1 - CO oxidation catalyzed by ag nanoparticles supported on SnO/CeO2
AU - Khan, Inayatali
AU - Sajid, Nida K M
AU - Badshah, Amin
AU - Wattoo, Muhammad Hamid Sarwar
AU - Anjum, Dalaver H.
AU - Nadeem, Muhammad Amtiaz
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: 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.
PY - 2015
Y1 - 2015
N2 - 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.
AB - 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.
UR - http://hdl.handle.net/10754/563959
UR - http://www.crossref.org/iPage?doi=10.5935%2F0103-5053.20150028
UR - http://www.scopus.com/inward/record.url?scp=84926137768&partnerID=8YFLogxK
U2 - 10.5935/0103-5053.20150028
DO - 10.5935/0103-5053.20150028
M3 - Article
SN - 0103-5053
VL - 26
SP - 695
EP - 704
JO - Journal of the Brazilian Chemical Society
JF - Journal of the Brazilian Chemical Society
IS - 4
ER -