Silica-ceria hybrid nanostructures

P. Munusamy, Shail Sanghavi, P. Nachimuthu, Donald R. Baer, S. Thevuthasan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A new hybrid material system that consists of ceria attached silica nanoparticles has been developed. Because of the versatile properties of silica and antioxidant properties of ceria nanoparticles, this material system is ideally suited for biomedical applications. The silica particles of size ≃50nm were synthesized by the Stöber synthesis method and ceria nanoparticles of size ≃2-3nm was attached to the silica surface using a hetrocoagulation method. The presence of silanol groups on the surface of silica particles mediated homogenous nucleation of ceria which were attached to silica surface by Si-O-Ce bonding. The formations of silica-ceria hybrid nanostructures were characterized by X-photoelectron spectroscopy (XPS) and high resolution transmission electron microscopy (HRTEM). The HRTEM image confirms the formation of individual crystallites of ceria nanoparticles attached to the silica surface. The XPS analysis indicates that ceria nanoparticles are chemically bonded to surface of silica and possess mixture of +3 and +4 chemical states.

Original languageEnglish
Title of host publicationMaterials Research Society Symposium Proceedings
Pages87-91
Number of pages5
Volume1471
DOIs
Publication statusPublished - 2012
Externally publishedYes
Event2012 MRS Spring Meeting - San Francisco, CA
Duration: 9 Apr 201213 Apr 2012

Other

Other2012 MRS Spring Meeting
CitySan Francisco, CA
Period9/4/1213/4/12

Fingerprint

Cerium compounds
Silicon Dioxide
Nanostructures
Silica
silicon dioxide
Nanoparticles
nanoparticles
Photoelectron spectroscopy
High resolution transmission electron microscopy
photoelectron spectroscopy
transmission electron microscopy
high resolution
Hybrid materials
antioxidants
Antioxidants
Crystallites
crystallites
Nucleation
nucleation
synthesis

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Mechanics of Materials

Cite this

Munusamy, P., Sanghavi, S., Nachimuthu, P., Baer, D. R., & Thevuthasan, S. (2012). Silica-ceria hybrid nanostructures. In Materials Research Society Symposium Proceedings (Vol. 1471, pp. 87-91) https://doi.org/10.1557/opl.2012.1458

Silica-ceria hybrid nanostructures. / Munusamy, P.; Sanghavi, Shail; Nachimuthu, P.; Baer, Donald R.; Thevuthasan, S.

Materials Research Society Symposium Proceedings. Vol. 1471 2012. p. 87-91.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Munusamy, P, Sanghavi, S, Nachimuthu, P, Baer, DR & Thevuthasan, S 2012, Silica-ceria hybrid nanostructures. in Materials Research Society Symposium Proceedings. vol. 1471, pp. 87-91, 2012 MRS Spring Meeting, San Francisco, CA, 9/4/12. https://doi.org/10.1557/opl.2012.1458
Munusamy P, Sanghavi S, Nachimuthu P, Baer DR, Thevuthasan S. Silica-ceria hybrid nanostructures. In Materials Research Society Symposium Proceedings. Vol. 1471. 2012. p. 87-91 https://doi.org/10.1557/opl.2012.1458
Munusamy, P. ; Sanghavi, Shail ; Nachimuthu, P. ; Baer, Donald R. ; Thevuthasan, S. / Silica-ceria hybrid nanostructures. Materials Research Society Symposium Proceedings. Vol. 1471 2012. pp. 87-91
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