Strontium Titanate
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2022 ◽  
Vol 202 ◽  
pp. 110969
Namhoon Kim ◽  
Brian J. Blankenau ◽  
Tianyu Su ◽  
Nicola H. Perry ◽  
Elif Ertekin

Materials ◽  
2022 ◽  
Vol 15 (2) ◽  
pp. 578
Agata Lisińska-Czekaj ◽  
Dionizy Czekaj

In the present paper, results of X-ray photoelectron studies of electroceramic thin films of barium strontium titanate, Ba1−xSrxTiO3 (BST), composition deposited on stainless-steel substrates are presented. The thin films were prepared by the sol-gel method. A spin-coating deposition of BST layers with different chemical compositions was utilized so the layer-type structure of (0-2) connectivity was formed. After the deposition, the thin-film samples were heated in air atmosphere at temperature T = 700 °C for 1 h. The surfaces of BST thin films subjected to thermal treatment were studied by X-ray diffraction. X-ray diffraction measurements confirmed the perovskite-type phase for all grown thin-film samples. The oxidation states of the elements were examined by the X-ray photoelectron spectroscopy method. X-ray photoelectron spectroscopy survey spectra as well as high-resolution spectra (photo-peaks) of the main metallic elements, such as Ti, Ba, and Sr, were compared for the layer-type structures, differing in the deposition sequence of the barium strontium titanate layers constituting the BST thin film.

2022 ◽  
Vol 4 (1) ◽  
C. W. Rischau ◽  
D. Pulmannová ◽  
G. W. Scheerer ◽  
A. Stucky ◽  
E. Giannini ◽  

Robert C. Chapleski ◽  
Azhad U. Chowdhury ◽  
Kyle R. Mason ◽  
Robert L. Sacci ◽  
Benjamin Doughty ◽  

Correction for ‘Interfacial acidity on the strontium titanate surface: a scaling paradigm and the role of the hydrogen bond’ by Robert C. Chapleski, Jr. et al., Phys. Chem. Chem. Phys., 2021, 23, 23478–23485, DOI: 10.1039/D1CP03587H.

2022 ◽  
Vol 334 ◽  
pp. 04008
Jonathan Cavazzani ◽  
Enrico Squizzato ◽  
Elena Brusamarello ◽  
Antonella Glisenti

Ammonia exhibits interesting features as fuel to feed Solid Oxide Fuel Cell. Herein, Ni and La co-doped strontium titanate was synthetized using wet chemistry route. Ni nanoparticles emerged via exsolution in reducing environment to decorate the surface. X-Ray Diffraction measurements exhibits perovskite structure was also preserved after the exsolution, as expected. H2 – Temperature Programmed Reduction highlights the great resistance of titanates in anode operation condition. Ammonia conversion in nitrogen and hydrogen were investigated by catalytic tests. It begins to decompose at 560°C and the full yield was achieved at 720°C. Electrochemical measurements were recorded at 800°C using 10% of ammonia in Ar. They were analysed though the model of equivalent circuit and two processes were attributed. Results certify Ni exsolution strongly enhances the hydrogen oxidation and the total polarisation resistance in ammonia approaches to the one in hydrogen.

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