Journal Article

PUBDB-2019-00205

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Synthesis and characterization of perovskite-type $La_{1-y}Ca_{y}Mn_{1-x}B^{″}_{x}O_{3±δ}$ nanomaterials (B″ = Ni, Fe; x = 0.2, 0.5; y = 0.4, 0.25)

Franke, D. (Corresponding author) ; Trots, D.DESY* ; Vasylechko, L. ; Vashook, V. ; Guth, U.

2018
Elsevier Amsterdam [u.a.]

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Please use a persistent id in citations: doi:10.1016/j.solidstatesciences.2017.12.008  doi:10.3204/PUBDB-2019-00205

Abstract: Perovskite-type nanomaterials of the compositions $La_{1-y}Ca_{y}Mn_{1-x}B^{″}_{x}O_{3±δ}$ with B’’ = Ni, Fe; x = 0.2, 0.5 and y = 0.4, 0.25 were prepared using two different preparation routes (synthesis by precipitation and the PVA/sucrose method) at 500 °C–700 °C. The calcined products of the syntheses were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX) and physisorption measurements. The materials from the PVA/sucrose method contain particles with diameters from 33 nm to 48 nm, generate specific surface areas up to 33 m2/g and form pure compared to 45 nm–93 nm and up to 18 m$^2$/g from precipitation method which contain a significant amount of sodium ions. The agglomeration process was analyzed for one nanomaterial (B’’ = Fe, x = 0.2, y = 0.4) from the PVA/sucrose method using temperature dependent XRD showing only a slight growth (4.3%) of nanoparticles at 600 °C. The materials from the PVA/sucrose method turned out to be more suitable as electrode materials in electrochemical applications (SOFC, sensors) because of smaller particle sizes, higher specific surface areas and purity.

Note: © Elsevier Masson SAS.

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Contributing Institute(s):

1. FS-Experimentebetreuung DORIS (FS-DO)

Research Program(s):

1. 6214 - Nanoscience and Materials for Information Technology (POF3-621) (POF3-621)

Experiment(s):

1. DORIS Beamline B2 (DORIS III)

Appears in the scientific report 2018

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Database coverage:
; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Web of Science Core Collection

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