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Başlık: Synthesis and characterization of silver/lithium cobalt oxide (Ag/LiCoO2) nanofibers via sol-gel electrospinning
Yazarlar: Pourdeyhimi, Behnam
Khan, Saad A.
Uludağ Üniversitesi/Mühendislik Fakültesi/Tekstil Mühendisliği Bölümü.
Aykut, Yakup
55320835000
Anahtar kelimeler: Chemistry
Physics
Nanostructures
Sol-gel growth
Crystal structure
Microstructure
Electrochemical performance
Surface-modification
Optical-properties
Cathode materials
Doped LICOO2
Lithium
Xps
Mechanisms
Films
Acid
Calcination
Cobalt
Crystal structure
Electric fields
Electrospinning
Ions
Lithium
Microstructure
Nanofibers
Nanostructures
Sol-gel process
Sol-gels
Analytical characterization
Electrospinning setups
Electrospinning techniques
Nanoporous structures
Polyvinyl pyrrolidone
Synthesis and characterizations
Viscous solution
Silver
Yayın Tarihi: 21-May-2013
Yayıncı: Elsevier
Atıf: Aykut, Y. vd. (2013). ''Synthesis and characterization of silver/lithium cobalt oxide (Ag/LiCoO2) nanofibers via sol-gel electrospinning''. Journal of Physics and Chemistry of Solids, 74(11), 1538-1545.
Özet: We report on the preparation and characterization of Ag/LiCoO2 nanofibers (NFs) via the sol-gel electrospinning (ES) technique. Ag nanoparticles (NPs) were produced in an aqueous polyvinyl pyrrolidone (PVP) solution by using AgNO3 precursor. A viscous lithium acetate/cobalt acetate/polyvinylalcohol/water (LiAc/(CoAc)(2)/PVA/water) solution was prepared separately. A Ag NPs/PVP/water solution was prepared and added to this viscous solution and magnetically stirred to obtain the final homogeneous electrospinning solution. After establishing the proper electrospinning conditions, as-spun precursor Ag/LiAc/Co(Ac)(2)/PVA/PVP NFs were formed and calcined in air at a temperature of 600 degrees C for 3 h to form well-crystallized porous Ag/LiCoO2 NFs. Various analytical characterization techniques such as UV-vis, SEM, TEM, TGA, XRD, and XPS were performed to analyze Ag NPs, as-spun and calcined NFs. It was established that Ag NPs in the precursor Ag/LiAc/Co(Ac)(2)/PVA/PVP NFs are highly self-aligned as a result of the behavior of Ag in the electric field of the electrospinning setup and the interaction of Ag ions with Li and Co ions in the NE Ag/LiCoO2 NFs exhibit a nanoporous structure compared with undoped LiCoO2 NFs because the atomic radius of Ag is larger than the radius of Co and Li ion; thus, no substitution between Ag and Li or Ag and Co atoms occurs, and Ag NPs are located at the interlayer of LiCoO2 while some are left in the fiber.
URI: https://doi.org/10.1016/j.jpcs.2013.05.021
https://www.sciencedirect.com/science/article/pii/S0022369713002163
http://hdl.handle.net/11452/32885
ISSN: 0022-3697
1879-2553
Koleksiyonlarda Görünür:Scopus
Web of Science

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