A non-alkoxide sol-gel method for the preparation of homogeneous nanocrystalline powders of la 0.85Sr 0.15MnO 3

Christopher N. Chervin, Brady J. Clapsaddle, Hsiang Wei Chiu, Alexander E. Gash, Joe H. Satcher, Susan M. Kauzlarich

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

Homogeneous, nanocrystalline Lai 1-xSr xMnO 3 (LSM) powders, with x ∼ 0.15, were synthesized with the epoxide addition sol-gel method. Through this simple technique, sol-gel materials were prepared from methanolic solutions of metal chlorides without the need for alkoxides, polymeric gel agents, or elaborate reaction schemes. The gels were dried in ambient conditions, resulting in mesoporous xerogels with networked nanostructures interconnecting particulate regions. Calcination of the dried gels resulted in the crystallization of single-phase LSM by 700 °C, after decomposition of intermediate hydroxide, chloride, and oxychloride compounds. SEM analysis indicated that the calcined powders were nanocrystalline and consisted of discrete particles, free of hard agglomeration. The average crystallite size and equivalent spherical diameter determined from XRD line broadening and BET analysis, respectively, were in good agreement with the SEM results (∼100 nm). The activation energies for the electronic conductivity from 1000 to 400 °C of sintered LSM xerogels were from 0.13 to 0.15 eV, in excellent agreement with previous reported results for LSM with x ∼ 0.15.

Original languageEnglish (US)
Pages (from-to)1928-1937
Number of pages10
JournalChemistry of Materials
Volume18
Issue number7
DOIs
StatePublished - Apr 4 2006

Fingerprint

Nanocrystalline powders
Sol-gel process
Xerogels
Gels
Chlorides
Scanning electron microscopy
Epoxy Compounds
Crystallite size
Crystallization
Powders
Calcination
Sol-gels
Nanostructures
Agglomeration
Activation energy
Metals
Decomposition

ASJC Scopus subject areas

  • Materials Chemistry
  • Materials Science(all)

Cite this

Chervin, C. N., Clapsaddle, B. J., Chiu, H. W., Gash, A. E., Satcher, J. H., & Kauzlarich, S. M. (2006). A non-alkoxide sol-gel method for the preparation of homogeneous nanocrystalline powders of la 0.85Sr 0.15MnO 3 Chemistry of Materials, 18(7), 1928-1937. https://doi.org/10.1021/cm052301j

A non-alkoxide sol-gel method for the preparation of homogeneous nanocrystalline powders of la 0.85Sr 0.15MnO 3 . / Chervin, Christopher N.; Clapsaddle, Brady J.; Chiu, Hsiang Wei; Gash, Alexander E.; Satcher, Joe H.; Kauzlarich, Susan M.

In: Chemistry of Materials, Vol. 18, No. 7, 04.04.2006, p. 1928-1937.

Research output: Contribution to journalArticle

Chervin, CN, Clapsaddle, BJ, Chiu, HW, Gash, AE, Satcher, JH & Kauzlarich, SM 2006, 'A non-alkoxide sol-gel method for the preparation of homogeneous nanocrystalline powders of la 0.85Sr 0.15MnO 3 ', Chemistry of Materials, vol. 18, no. 7, pp. 1928-1937. https://doi.org/10.1021/cm052301j
Chervin, Christopher N. ; Clapsaddle, Brady J. ; Chiu, Hsiang Wei ; Gash, Alexander E. ; Satcher, Joe H. ; Kauzlarich, Susan M. / A non-alkoxide sol-gel method for the preparation of homogeneous nanocrystalline powders of la 0.85Sr 0.15MnO 3 In: Chemistry of Materials. 2006 ; Vol. 18, No. 7. pp. 1928-1937.
@article{e9f2b6c2fa3444c6843508684e81e218,
title = "A non-alkoxide sol-gel method for the preparation of homogeneous nanocrystalline powders of la 0.85Sr 0.15MnO 3",
abstract = "Homogeneous, nanocrystalline Lai 1-xSr xMnO 3 (LSM) powders, with x ∼ 0.15, were synthesized with the epoxide addition sol-gel method. Through this simple technique, sol-gel materials were prepared from methanolic solutions of metal chlorides without the need for alkoxides, polymeric gel agents, or elaborate reaction schemes. The gels were dried in ambient conditions, resulting in mesoporous xerogels with networked nanostructures interconnecting particulate regions. Calcination of the dried gels resulted in the crystallization of single-phase LSM by 700 °C, after decomposition of intermediate hydroxide, chloride, and oxychloride compounds. SEM analysis indicated that the calcined powders were nanocrystalline and consisted of discrete particles, free of hard agglomeration. The average crystallite size and equivalent spherical diameter determined from XRD line broadening and BET analysis, respectively, were in good agreement with the SEM results (∼100 nm). The activation energies for the electronic conductivity from 1000 to 400 °C of sintered LSM xerogels were from 0.13 to 0.15 eV, in excellent agreement with previous reported results for LSM with x ∼ 0.15.",
author = "Chervin, {Christopher N.} and Clapsaddle, {Brady J.} and Chiu, {Hsiang Wei} and Gash, {Alexander E.} and Satcher, {Joe H.} and Kauzlarich, {Susan M.}",
year = "2006",
month = "4",
day = "4",
doi = "10.1021/cm052301j",
language = "English (US)",
volume = "18",
pages = "1928--1937",
journal = "Chemistry of Materials",
issn = "0897-4756",
publisher = "American Chemical Society",
number = "7",

}

TY - JOUR

T1 - A non-alkoxide sol-gel method for the preparation of homogeneous nanocrystalline powders of la 0.85Sr 0.15MnO 3

AU - Chervin, Christopher N.

AU - Clapsaddle, Brady J.

AU - Chiu, Hsiang Wei

AU - Gash, Alexander E.

AU - Satcher, Joe H.

AU - Kauzlarich, Susan M.

PY - 2006/4/4

Y1 - 2006/4/4

N2 - Homogeneous, nanocrystalline Lai 1-xSr xMnO 3 (LSM) powders, with x ∼ 0.15, were synthesized with the epoxide addition sol-gel method. Through this simple technique, sol-gel materials were prepared from methanolic solutions of metal chlorides without the need for alkoxides, polymeric gel agents, or elaborate reaction schemes. The gels were dried in ambient conditions, resulting in mesoporous xerogels with networked nanostructures interconnecting particulate regions. Calcination of the dried gels resulted in the crystallization of single-phase LSM by 700 °C, after decomposition of intermediate hydroxide, chloride, and oxychloride compounds. SEM analysis indicated that the calcined powders were nanocrystalline and consisted of discrete particles, free of hard agglomeration. The average crystallite size and equivalent spherical diameter determined from XRD line broadening and BET analysis, respectively, were in good agreement with the SEM results (∼100 nm). The activation energies for the electronic conductivity from 1000 to 400 °C of sintered LSM xerogels were from 0.13 to 0.15 eV, in excellent agreement with previous reported results for LSM with x ∼ 0.15.

AB - Homogeneous, nanocrystalline Lai 1-xSr xMnO 3 (LSM) powders, with x ∼ 0.15, were synthesized with the epoxide addition sol-gel method. Through this simple technique, sol-gel materials were prepared from methanolic solutions of metal chlorides without the need for alkoxides, polymeric gel agents, or elaborate reaction schemes. The gels were dried in ambient conditions, resulting in mesoporous xerogels with networked nanostructures interconnecting particulate regions. Calcination of the dried gels resulted in the crystallization of single-phase LSM by 700 °C, after decomposition of intermediate hydroxide, chloride, and oxychloride compounds. SEM analysis indicated that the calcined powders were nanocrystalline and consisted of discrete particles, free of hard agglomeration. The average crystallite size and equivalent spherical diameter determined from XRD line broadening and BET analysis, respectively, were in good agreement with the SEM results (∼100 nm). The activation energies for the electronic conductivity from 1000 to 400 °C of sintered LSM xerogels were from 0.13 to 0.15 eV, in excellent agreement with previous reported results for LSM with x ∼ 0.15.

UR - http://www.scopus.com/inward/record.url?scp=33646096996&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33646096996&partnerID=8YFLogxK

U2 - 10.1021/cm052301j

DO - 10.1021/cm052301j

M3 - Article

AN - SCOPUS:33646096996

VL - 18

SP - 1928

EP - 1937

JO - Chemistry of Materials

JF - Chemistry of Materials

SN - 0897-4756

IS - 7

ER -