Oxidation States and the Acidity of Ordered Arrays of Co-Pb Mixed Oxide Nanoparticles Templated in SBA15

Date

2008-08-01

Author

Yılmaz, Ayşen
Can, Mukaddes
Yılmaz, Ayşen
Üner, Deniz

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Co, Pb and CoPb containing SBA15 mesoporous materials were prepared by direct synthesis method. When Co and Pb were loaded simultaneously, nanoparticles were formed in the channels of SBA15 as observed by transmission electron microscopy. These nanoparticles blocked the pores and decreased the apparent surface areas indicated by BET analysis. Pyridine adsorption on these catalysts revealed that while monometallic additions did not influence the overall acidity of SBA15, in the bimetallic system, characteristic bands due to pyridine adsorption on Co2+ ions were observed.

Subject Keywords

SBA-15, Mesoporous Silica, Co, Pb, XPS, DRIFTS, Pyridine

URI

https://hdl.handle.net/11511/32489

Journal

TOPICS IN CATALYSIS

DOI

https://doi.org/10.1007/s11244-008-9094-z

Collections

Graduate School of Natural and Applied Sciences, Article

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Citation Formats

A. Yılmaz, M. Can, A. Yılmaz, and D. Üner, “Oxidation States and the Acidity of Ordered Arrays of Co-Pb Mixed Oxide Nanoparticles Templated in SBA15,” TOPICS IN CATALYSIS, pp. 187–192, 2008, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/32489.