Formation of BaCrO4 nanoCrystallites within thermally evaporated sodium bis-2-ethylhexyl-sulfosuccinate and stearic acid thin films

Debabrata Rautaray, Kaustav Sinha, Sudhakar R. Sainkar, Renu Pasricha, Neela R. Pavaskar, Murali Sastry

Research output: Contribution to journalArticle

Abstract

This paper describes the growth of barium chromate (BaCrO4) nanocrystallites within thermally evaporated thin films of stearic acid (StA) and sodium bis-2-ethylhexyl-sulfosuccinate by a process of Ba2+ ion entrapment followed by in situ reaction with CrO42- ions. Dense spherical assemblies of BaCrO4 nanocrystallites of very uniform size (∼ 50 nm) were obtained within the two different host matrices. The spherical assemblies were composed of smaller (ca. 5-10 nm size) BaCrO 4 crystals indicating that efficient size control over crystal size may be exercised by the matrix. Contact angle measurements of the BaCrO 4-StA and BaCrO4-sodium bis-2-ethylhexyl-sulfosuccinate films indicated that they were hydrophobic, thus pointing to the possible role of hydrophobic interaction between the StA and sodium bis-2-ethylhexyl- sulfosuccinate monolayer-covered BaCrO4 crystals in the assembly process.

Original languageEnglish (US)
Pages (from-to)24-27
Number of pages4
JournalJournal of the American Ceramic Society
Volume88
Issue number1
DOIs
StatePublished - Jan 1 2005

Fingerprint

Dioctyl Sulfosuccinic Acid
Nanocrystallites
Stearic acid
Sodium
sodium
Thin films
Crystals
acid
crystal
Ions
Chromates
Angle measurement
Barium
matrix
Contact angle
chromate
ion
Monolayers
barium
stearic acid

ASJC Scopus subject areas

  • Ceramics and Composites
  • Geology
  • Geochemistry and Petrology
  • Materials Chemistry

Cite this

Formation of BaCrO4 nanoCrystallites within thermally evaporated sodium bis-2-ethylhexyl-sulfosuccinate and stearic acid thin films. / Rautaray, Debabrata; Sinha, Kaustav; Sainkar, Sudhakar R.; Pasricha, Renu; Pavaskar, Neela R.; Sastry, Murali.

In: Journal of the American Ceramic Society, Vol. 88, No. 1, 01.01.2005, p. 24-27.

Research output: Contribution to journalArticle

Rautaray, Debabrata ; Sinha, Kaustav ; Sainkar, Sudhakar R. ; Pasricha, Renu ; Pavaskar, Neela R. ; Sastry, Murali. / Formation of BaCrO4 nanoCrystallites within thermally evaporated sodium bis-2-ethylhexyl-sulfosuccinate and stearic acid thin films. In: Journal of the American Ceramic Society. 2005 ; Vol. 88, No. 1. pp. 24-27.
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AU - Rautaray, Debabrata

AU - Sinha, Kaustav

AU - Sainkar, Sudhakar R.

AU - Pasricha, Renu

AU - Pavaskar, Neela R.

AU - Sastry, Murali

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