DOPING OF SM INTO CEO2 NANOTUBES UP TO 50%

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AGHABOZORG H.R.; SAKHAIE F.; RAMEZANI M.; AGHABOZORG H.

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Journal: JOURNAL OF SCIENCES (ISLAMIC AZAD UNIVERSITY) Year:2009 | Volume:19 | Issue:72 (CHEMISTRY ISSUE) Page(s): 47-52

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Title

DOPING OF SM INTO CEO2 NANOTUBES UP TO 50%

Author(s)

AGHABOZORG H.R. | SAKHAIE F. | RAMEZANI M. | AGHABOZORG H. | Issue Writer Certificate

Keywords

INORGANIC NANOTUBESQ3

GAS-LIQUID CO-PRECIPITATIONQ3

CERIAQ3

SM-DOPED CERIAQ3

Abstract

Introduction: CERIA and Materials based on CERIA (CeO2-x) have attracted much attention due to many applications in different fields such as fuel cells, catalysis, etc.. Doping of some elements for example Sm, into CERIA has improved some properties of this compound such as electrical conductivity, catalytic behavior, etc.Aim: Syntheses and characterization of Sm doped CeO2 nanotubes at room temperature Materials and Methods: Crystalline phases were determined by X-ray diffraction (XRD) and morphology of the prepared samples was studied by SEM and TEM. Elemental analysis of the prepared samples was carried out using ICP method.Results: The XRD patterns of the Sm doped CeO2 nanotubes were compared with that of CeO2 (JCPDS, 43-1002). Comparison of these patterns indicated that all samples had cubic flurorite structure. Sm-doped CeO2 patterns showed that Sm could be doped into CeO2 up to 50%. The EDAX and ICP analysis of the samples indicated that Sm was doped into the CeO2. The SEM and TEM images of the synthesized samples confirmed formation of Sm doped CERIA nanotubes. The calculation of unit cell parameter (a) indicated that by doping of Sm into CeO2, “a” increased. This increase could be due to Sm ionic radii (rSmIII=0.96A), which is more than that of Ce (rCe IV=0.87 A).Conclusion: The XRD patterns of Sm-doped CeO2 showed that Sm could be doped into CeO2 up to 50% (This doping level is obtained in this work for the first time). By doping Sm into CeO2, lattice parameter of the unit cell of the samples (“a”) increased.

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APA: Copy

AGHABOZORG, H.R., SAKHAIE, F., RAMEZANI, M., & AGHABOZORG, H.. (2009). DOPING OF SM INTO CEO₂ NANOTUBES UP TO 50%. JOURNAL OF SCIENCES (ISLAMIC AZAD UNIVERSITY), 19(72 (CHEMISTRY ISSUE)), 47-52. SID. https://sid.ir/paper/70619/en

Vancouver: Copy

AGHABOZORG H.R., SAKHAIE F., RAMEZANI M., AGHABOZORG H.. DOPING OF SM INTO CEO₂ NANOTUBES UP TO 50%. JOURNAL OF SCIENCES (ISLAMIC AZAD UNIVERSITY)[Internet]. 2009;19(72 (CHEMISTRY ISSUE)):47-52. Available from: https://sid.ir/paper/70619/en

IEEE: Copy

H.R. AGHABOZORG, F. SAKHAIE, M. RAMEZANI, and H. AGHABOZORG, “DOPING OF SM INTO CEO₂ NANOTUBES UP TO 50%,” JOURNAL OF SCIENCES (ISLAMIC AZAD UNIVERSITY), vol. 19, no. 72 (CHEMISTRY ISSUE), pp. 47–52, 2009, [Online]. Available: https://sid.ir/paper/70619/en

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