Preparation and characterization of Pt-Ba-Al2O3 coatings obtained by spray pyrolysis

Pt-Ba-Al2O3 coatings were obtained by spray pyrolysis deposition on stainless steel foil. The XRD results showed that the coatings consisted from Ba carbonate and Pt (fcc) phases. SEM micrographs demonstrated that the coatings are smooth and compact. The XPS data confirmed that Ba and Pt are in close contact. Pt crystallite size is only slightly influenced by the order of Pt and Ba deposition and the dispersion of Pt is in the narrow range from 28 to 33% for all samples. Catalyst component deposition order affects NOx storage capacity. Simultaneous deposition of Ba and Pt on already formed Al2O3 substrate produces the most efficient catalyst. Pt deposited on top of the Ba layer results in slightly reduced NOx storage capacity, while deposition of Pt on the separated layer with Ba layer on top significantly reduces the ability for NOx storage.

Keywords:

Spray pyrolysis / Platinum / Barium / Coatings

Source:
Thin Solid Films, 2017, 628, 7-12

Publisher:

Elsevier Science Sa, Lausanne

Funding / projects:

DOI: 10.1016/j.tsf.2017.03.007

ISSN: 0040-6090

WoS: 000400215400002

Scopus: 2-s2.0-85014613943

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TY  - JOUR
AU  - Radić, Nenad
AU  - Grbić, Boško
AU  - Stojadinović, Stevan
AU  - Vasilić, Rastko
AU  - Petrović, Srđan
AU  - Rožić, Ljiljana
AU  - Stefanov, Plamen
PY  - 2017
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2259
AB  - Pt-Ba-Al2O3 coatings were obtained by spray pyrolysis deposition on stainless steel foil. The XRD results showed that the coatings consisted from Ba carbonate and Pt (fcc) phases. SEM micrographs demonstrated that the coatings are smooth and compact. The XPS data confirmed that Ba and Pt are in close contact. Pt crystallite size is only slightly influenced by the order of Pt and Ba deposition and the dispersion of Pt is in the narrow range from 28 to 33% for all samples. Catalyst component deposition order affects NOx storage capacity. Simultaneous deposition of Ba and Pt on already formed Al2O3 substrate produces the most efficient catalyst. Pt deposited on top of the Ba layer results in slightly reduced NOx storage capacity, while deposition of Pt on the separated layer with Ba layer on top significantly reduces the ability for NOx storage.
PB  - Elsevier Science Sa, Lausanne
T2  - Thin Solid Films
T1  - Preparation and characterization of Pt-Ba-Al2O3 coatings obtained by spray pyrolysis
VL  - 628
SP  - 7
EP  - 12
DO  - 10.1016/j.tsf.2017.03.007
ER  -

@article{
author = "Radić, Nenad and Grbić, Boško and Stojadinović, Stevan and Vasilić, Rastko and Petrović, Srđan and Rožić, Ljiljana and Stefanov, Plamen",
year = "2017",
abstract = "Pt-Ba-Al2O3 coatings were obtained by spray pyrolysis deposition on stainless steel foil. The XRD results showed that the coatings consisted from Ba carbonate and Pt (fcc) phases. SEM micrographs demonstrated that the coatings are smooth and compact. The XPS data confirmed that Ba and Pt are in close contact. Pt crystallite size is only slightly influenced by the order of Pt and Ba deposition and the dispersion of Pt is in the narrow range from 28 to 33% for all samples. Catalyst component deposition order affects NOx storage capacity. Simultaneous deposition of Ba and Pt on already formed Al2O3 substrate produces the most efficient catalyst. Pt deposited on top of the Ba layer results in slightly reduced NOx storage capacity, while deposition of Pt on the separated layer with Ba layer on top significantly reduces the ability for NOx storage.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Thin Solid Films",
title = "Preparation and characterization of Pt-Ba-Al2O3 coatings obtained by spray pyrolysis",
volume = "628",
pages = "7-12",
doi = "10.1016/j.tsf.2017.03.007"
}

Radić, N., Grbić, B., Stojadinović, S., Vasilić, R., Petrović, S., Rožić, L.,& Stefanov, P.. (2017). Preparation and characterization of Pt-Ba-Al2O3 coatings obtained by spray pyrolysis. in Thin Solid Films
Elsevier Science Sa, Lausanne., 628, 7-12.
https://doi.org/10.1016/j.tsf.2017.03.007

Radić N, Grbić B, Stojadinović S, Vasilić R, Petrović S, Rožić L, Stefanov P. Preparation and characterization of Pt-Ba-Al2O3 coatings obtained by spray pyrolysis. in Thin Solid Films. 2017;628:7-12.
doi:10.1016/j.tsf.2017.03.007 .

Radić, Nenad, Grbić, Boško, Stojadinović, Stevan, Vasilić, Rastko, Petrović, Srđan, Rožić, Ljiljana, Stefanov, Plamen, "Preparation and characterization of Pt-Ba-Al2O3 coatings obtained by spray pyrolysis" in Thin Solid Films, 628 (2017):7-12,
https://doi.org/10.1016/j.tsf.2017.03.007 . .