Standard

Evolution of bulk and surface structures in stoichiometric LaAlO3 mixed oxide prepared by using starch as template. / Stathopoulos, Vassilis N.; Kuznetsova, Tatyana; Lapina, Olga et al.

In: Materials Chemistry and Physics, Vol. 207, 01.03.2018, p. 423-434.

Research output: Contribution to journal › Article › peer-review

Harvard

Stathopoulos, VN, Kuznetsova, T, Lapina, O, Khabibulin, D, Pandis, PK, Krieger, T, Chesalov, Y, Gulyalev, R, Krivensov, V, Larina, T & Sadykov, V 2018, 'Evolution of bulk and surface structures in stoichiometric LaAlO3 mixed oxide prepared by using starch as template', Materials Chemistry and Physics, vol. 207, pp. 423-434. https://doi.org/10.1016/j.matchemphys.2017.12.056

APA

Stathopoulos, V. N., Kuznetsova, T., Lapina, O., Khabibulin, D., Pandis, P. K., Krieger, T., Chesalov, Y., Gulyalev, R., Krivensov, V., Larina, T., & Sadykov, V. (2018). Evolution of bulk and surface structures in stoichiometric LaAlO3 mixed oxide prepared by using starch as template. Materials Chemistry and Physics, 207, 423-434. https://doi.org/10.1016/j.matchemphys.2017.12.056

Vancouver

Stathopoulos VN, Kuznetsova T, Lapina O, Khabibulin D, Pandis PK, Krieger T et al. Evolution of bulk and surface structures in stoichiometric LaAlO3 mixed oxide prepared by using starch as template. Materials Chemistry and Physics. 2018 Mar 1;207:423-434. doi: 10.1016/j.matchemphys.2017.12.056

Author

Stathopoulos, Vassilis N. ; Kuznetsova, Tatyana ; Lapina, Olga et al. / Evolution of bulk and surface structures in stoichiometric LaAlO3 mixed oxide prepared by using starch as template. In: Materials Chemistry and Physics. 2018 ; Vol. 207. pp. 423-434.

BibTeX

@article{95a164d2213f4f44a17b16ee5013c3f4,
title = "Evolution of bulk and surface structures in stoichiometric LaAlO3 mixed oxide prepared by using starch as template",
abstract = "During the preparation of stoichiometric LaAlO3 type oxide from an aqueous solution of La and Al nitrate salts, using starch as template, a layered intermediate – disordered mixed lanthanum and aluminum hydroxycarbonate exists in the 300–700 °C calcination temperature range. According to calcination temperature a variable content of anions/OH is observed as well as changes in the coordination environment of La and Al cations are providing distortions in the structure. The nuclei of LaAlO3 appears within a mixed La-Al hydroxycarbonate matrix at ∼700 °C. This phase crystallizes at 900 °C after decomposition of the major part of bulk carbonates. The surface layer of perovskite particles formed by stacked nanocrystallites is enriched in La cations and contains residual hydroxyls and carbonates, which results in distortion of the local environment of both cations creating oxygen defect sites as well. Such a microheterogeneity is partly retained up to 1300 °C.",
keywords = "Lanthanum aluminate, Nanocrystalline, Perovskites, Powders, Starch, COMBUSTION SYNTHESIS, SMFE1-XALXO3 X=0.00, NMR, AREA, LAGAO3, POWDER DIFFRACTION, PHASE-TRANSITION, CUBIC PHASE, METAL, PEROVSKITES",
author = "Stathopoulos, {Vassilis N.} and Tatyana Kuznetsova and Olga Lapina and Dzhalil Khabibulin and Pandis, {Pavlos K.} and Tamara Krieger and Yuri Chesalov and Roman Gulyalev and Vladimir Krivensov and Tatyana Larina and Vladislav Sadykov",
note = "Publisher Copyright: {\textcopyright} 2017 Elsevier B.V.",
year = "2018",
month = mar,
day = "1",
doi = "10.1016/j.matchemphys.2017.12.056",
language = "English",
volume = "207",
pages = "423--434",
journal = "Materials Chemistry and Physics",
issn = "0254-0584",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Evolution of bulk and surface structures in stoichiometric LaAlO3 mixed oxide prepared by using starch as template

AU - Stathopoulos, Vassilis N.

AU - Kuznetsova, Tatyana

AU - Lapina, Olga

AU - Khabibulin, Dzhalil

AU - Pandis, Pavlos K.

AU - Krieger, Tamara

AU - Chesalov, Yuri

AU - Gulyalev, Roman

AU - Krivensov, Vladimir

AU - Larina, Tatyana

AU - Sadykov, Vladislav

N1 - Publisher Copyright: © 2017 Elsevier B.V.

PY - 2018/3/1

Y1 - 2018/3/1

N2 - During the preparation of stoichiometric LaAlO3 type oxide from an aqueous solution of La and Al nitrate salts, using starch as template, a layered intermediate – disordered mixed lanthanum and aluminum hydroxycarbonate exists in the 300–700 °C calcination temperature range. According to calcination temperature a variable content of anions/OH is observed as well as changes in the coordination environment of La and Al cations are providing distortions in the structure. The nuclei of LaAlO3 appears within a mixed La-Al hydroxycarbonate matrix at ∼700 °C. This phase crystallizes at 900 °C after decomposition of the major part of bulk carbonates. The surface layer of perovskite particles formed by stacked nanocrystallites is enriched in La cations and contains residual hydroxyls and carbonates, which results in distortion of the local environment of both cations creating oxygen defect sites as well. Such a microheterogeneity is partly retained up to 1300 °C.

AB - During the preparation of stoichiometric LaAlO3 type oxide from an aqueous solution of La and Al nitrate salts, using starch as template, a layered intermediate – disordered mixed lanthanum and aluminum hydroxycarbonate exists in the 300–700 °C calcination temperature range. According to calcination temperature a variable content of anions/OH is observed as well as changes in the coordination environment of La and Al cations are providing distortions in the structure. The nuclei of LaAlO3 appears within a mixed La-Al hydroxycarbonate matrix at ∼700 °C. This phase crystallizes at 900 °C after decomposition of the major part of bulk carbonates. The surface layer of perovskite particles formed by stacked nanocrystallites is enriched in La cations and contains residual hydroxyls and carbonates, which results in distortion of the local environment of both cations creating oxygen defect sites as well. Such a microheterogeneity is partly retained up to 1300 °C.

KW - Lanthanum aluminate

KW - Nanocrystalline

KW - Perovskites

KW - Powders

KW - Starch

KW - COMBUSTION SYNTHESIS

KW - SMFE1-XALXO3 X=0.00

KW - NMR

KW - AREA

KW - LAGAO3

KW - POWDER DIFFRACTION

KW - PHASE-TRANSITION

KW - CUBIC PHASE

KW - METAL

KW - PEROVSKITES

UR - http://www.scopus.com/inward/record.url?scp=85041480746&partnerID=8YFLogxK

U2 - 10.1016/j.matchemphys.2017.12.056

DO - 10.1016/j.matchemphys.2017.12.056

M3 - Article

AN - SCOPUS:85041480746

VL - 207

SP - 423

EP - 434

JO - Materials Chemistry and Physics

JF - Materials Chemistry and Physics

SN - 0254-0584

ER -

ID: 10420808