Next Article in Journal
Optimizing Mechanical Structures Through Butt Joining of Dissimilar Materials for Lightweight Components
Previous Article in Journal
State-of-the-Art Nanomaterials in Energy and Environmental Applications
Previous Article in Special Issue
Effect of Hopcalite Modification on the Pore Textural and HCl Adsorption Properties of Activated Carbon Fibers
 
 
Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
Journals
Materials
Volume 19
Issue 1
10.3390/ma19010020
materials-logo
Submit to this Journal Review for this Journal Propose a Special Issue
► Article Menu

Article Menu

share Share announcement Help format_quote Cite
first_page
settings
Order Article Reprints
Font Type:
Arial Georgia Verdana
Font Size:
Aa Aa Aa
Line Spacing:
Column Width:
Background:
This is an early access version, the complete PDF, HTML, and XML versions will be available soon.
Article

Titania-Based Oxide Catalysts for Removing Nitrogen Oxides

by
Anna Białas
1,*,
Natalia Kowalska
1,
Małgorzata Zimowska
2,
Grzegorz Mordarski
2 and
Jacek Gurgul
2
1
AGH University of Krakow, Faculty of Energy and Fuels, Mickiewicza 30, 30-059 Krakow, Poland
2
Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, 30-239 Krakow, Poland
*
Author to whom correspondence should be addressed.
Materials 2026, 19(1), 20; https://doi.org/10.3390/ma19010020 (registering DOI)
Submission received: 29 October 2025 / Revised: 16 December 2025 / Accepted: 17 December 2025 / Published: 20 December 2025
(This article belongs to the Special Issue Advanced Nanoporous and Mesoporous Materials)
Versions Notes

Abstract

Titania catalysts containing cerium, copper, or iron were obtained using the sol–gel method and tested in the selective reduction of nitrogen oxide. Samples with cerium and iron showed high activity at temperatures ranging from 200 to 400 °C, without the formation of N2O. The materials crystallized in anatase structure, and only a small amount of ceria was detected by XRD. Their crystallites were nanometric in size. The solids were mesoporous, with a specific surface area between 74 and 160 m2/g, determined based on nitrogen sorption at low temperature. The optimum Ce/Ti and Fe/Ti atomic ratio was 0.1 to 0.9, and such catalysts were composed of small anatase crystallites, although the presence of ceria also resulted in high catalytic activity. This activity was due to the presence of Fe3+ or Ce3+ ions on the surface of the material.
Keywords: sol–gel; titania; cerium; iron; SCR NO sol–gel; titania; cerium; iron; SCR NO

Share and Cite

MDPI and ACS Style

Białas, A.; Kowalska, N.; Zimowska, M.; Mordarski, G.; Gurgul, J. Titania-Based Oxide Catalysts for Removing Nitrogen Oxides. Materials 2026, 19, 20. https://doi.org/10.3390/ma19010020

AMA Style

Białas A, Kowalska N, Zimowska M, Mordarski G, Gurgul J. Titania-Based Oxide Catalysts for Removing Nitrogen Oxides. Materials. 2026; 19(1):20. https://doi.org/10.3390/ma19010020

Chicago/Turabian Style

Białas, Anna, Natalia Kowalska, Małgorzata Zimowska, Grzegorz Mordarski, and Jacek Gurgul. 2026. "Titania-Based Oxide Catalysts for Removing Nitrogen Oxides" Materials 19, no. 1: 20. https://doi.org/10.3390/ma19010020

APA Style

Białas, A., Kowalska, N., Zimowska, M., Mordarski, G., & Gurgul, J. (2026). Titania-Based Oxide Catalysts for Removing Nitrogen Oxides. Materials, 19(1), 20. https://doi.org/10.3390/ma19010020

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

Article Metrics

Back to TopTop