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Citric acid auto-combustion synthesis of Ti-containing perovskites via aqueous precursors

Vieten, Josua and Bulfin, Brendan and Roeb, Martin and Sattler, Christian (2018) Citric acid auto-combustion synthesis of Ti-containing perovskites via aqueous precursors. Solid State Ionics, 315, pp. 92-97. Elsevier. DOI: 10.1016/j.ssi.2017.12.010 ISSN 0167-2738

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Official URL: https://www.sciencedirect.com/science/article/pii/S0167273817307269

Abstract

Mixed metal oxides find many established industrial as well as future applications, such as in thermochemical processes, catalysis, or the semiconductor and ceramics industries. These oxides can be prepared via direct solid state synthesis from the oxides, or via solution-based methods such as citric acid auto-combustion routes which involve nitrates as starting materials. However, especially in the case of titanates, direct solid state methods often yield low phase purity, and synthesis from nitrates cannot be carried out as stable titanium nitrates do not exist. We found that the dissolution of titanium monoxide (TiO) using hydrogen peroxide in the presence of ammonia yields an excellent aqueous precursor for citric acid auto-combustion which is insensitive towards hydrolysis. Moreover, the method is fast, easy to implement, and yields excellent phase purity. Solid solutions of CaMnO3 and CaTiO3 could be formed in any mixture ratio.

Item URL in elib:https://elib.dlr.de/117820/
Document Type:Article
Title:Citric acid auto-combustion synthesis of Ti-containing perovskites via aqueous precursors
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Vieten, JosuaJosua.Vieten (at) dlr.deUNSPECIFIED
Bulfin, Brendanbrendan.bulfin (at) dlr.deUNSPECIFIED
Roeb, MartinMartin.Roeb (at) dlr.deUNSPECIFIED
Sattler, ChristianChristian.Sattler (at) dlr.dehttps://orcid.org/0000-0002-4314-1124
Date:2018
Journal or Publication Title:Solid State Ionics
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:315
DOI :10.1016/j.ssi.2017.12.010
Page Range:pp. 92-97
Publisher:Elsevier
ISSN:0167-2738
Status:Published
Keywords:Pereovskites, citric acid Auto combustion
HGF - Research field:Energy
HGF - Program:Renewable Energies
HGF - Program Themes:Solar Fuels
DLR - Research area:Energy
DLR - Program:E SW - Solar and Wind Energy
DLR - Research theme (Project):E - Solar Fuels
Location: Köln-Porz
Institutes and Institutions:Institute of Solar Research > Solar Chemical Engineering
Deposited By: Sattler, Prof. Dr. Christian
Deposited On:03 Jan 2018 14:07
Last Modified:03 Jan 2018 14:07

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