Next Article in Journal
Point-Defect-Rich Carbon Sheets as the High-Activity Catalyst Toward Oxygen Reduction and Hydrogen Evolution
Next Article in Special Issue
Co-precipitation Synthesized MnOx-CeO2 Mixed Oxides for NO Oxidation and Enhanced Resistance to Low Concentration of SO2 by Metal Addition
Previous Article in Journal
Hydroconversion of Aromatic Hydrocarbons over Bimetallic Catalysts
Previous Article in Special Issue
Heteropolyacid Salt Catalysts for Methanol Conversion to Hydrocarbons and Dimethyl Ether: Effect of Reaction Temperature
 
 
Search for Articles:
Title / Keyword
Author / Affiliation
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
Journals
Catalysts
Volume 9
Issue 4
10.3390/catal9040385
catalysts-logo
Submit to this Journal Review for this Journal Edit a Special Issue
► Article Menu

Article Menu

share announcement question_answer thumb_up
...
textsms
...
Communication

Ultra-Small Pd Nanoparticles on Ceria as an Advanced Catalyst for CO Oxidation

by
Andrei Tereshchenko
1,*,
Vladimir Polyakov
1,2,
Alexander Guda
1,
Tatiana Lastovina
1,
Yulia Pimonova
1,
Alexey Bulgakov
1,
Andrey Tarasov
3,4,
Leonid Kustov
3,4,
Vera Butova
1,2,
Alexander Trigub
5 and
Alexander Soldatov
1
1
The Smart Materials Research Institute, Southern Federal University, 344090 Rostov-on-Don, Russia
2
Federal Research Centre the Southern Scientific Center of the Russian Academy of Sciences, 344006 Rostov-on-Don, Russia
3
Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russia
4
National University of Science and Technology MISiS, 4 Leninsky prosp., 119991 Moscow, Russia
5
National Research Centre ‘Kurchatov Institute’, 1 Akademika Kurchatova pl., 123182 Moscow, Russia
*
Author to whom correspondence should be addressed.
Catalysts 2019, 9(4), 385; https://doi.org/10.3390/catal9040385
Received: 7 March 2019 / Revised: 16 April 2019 / Accepted: 21 April 2019 / Published: 24 April 2019
(This article belongs to the Special Issue Heterogeneous Catalytic Materials: Synthesis, Characterization and Applications for Energetic Purposes)
View Full-Text Download PDF
Browse Figures

Abstract

In this study, we demonstrate the preparation and characterization of small palladium nanoparticles (Pd NPs) on modified ceria support (Pd/CeO2) using wet impregnation and further reduction in an H2/Ar flow. The obtained particles had a good dispersion, but their small size made it difficult to analyze them by conventional techniques such as transmission electron microscopy (TEM) and X-ray powder diffraction (XRPD). The material demonstrated a high catalytic activity in the CO oxidation reaction: the 100% of CO conversion was achieved at ~50 °C, whereas for most of the cited literature, such a high conversion usually was observed near 100 °C or higher for Pd NPs. Diffuse reflectance infrared Fourier-transform (DRIFT) spectroscopy in combination with CO probe molecules was used to investigate the size and morphology of NPs and the ceria support. On the basis of the area ratio under the peaks attributed to bridged (B) and linear (L) carbonyls, high-dispersion Pd NPs was corroborated. Obtained results were in good agreement with data of X-ray absorption near edge structure analysis (XANES) and CO chemisorption measurements. View Full-Text
Keywords: catalysts; ultra-small nanoparticles; ceria support; TEPA; CO oxidation; DRIFT spectroscopy; CO probe molecules catalysts; ultra-small nanoparticles; ceria support; TEPA; CO oxidation; DRIFT spectroscopy; CO probe molecules
►▼ Show Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Supplementary Material

SciFeed

Share and Cite

MDPI and ACS Style

Tereshchenko, A.; Polyakov, V.; Guda, A.; Lastovina, T.; Pimonova, Y.; Bulgakov, A.; Tarasov, A.; Kustov, L.; Butova, V.; Trigub, A.; Soldatov, A. Ultra-Small Pd Nanoparticles on Ceria as an Advanced Catalyst for CO Oxidation. Catalysts 2019, 9, 385. https://doi.org/10.3390/catal9040385

AMA Style

Tereshchenko A, Polyakov V, Guda A, Lastovina T, Pimonova Y, Bulgakov A, Tarasov A, Kustov L, Butova V, Trigub A, Soldatov A. Ultra-Small Pd Nanoparticles on Ceria as an Advanced Catalyst for CO Oxidation. Catalysts. 2019; 9(4):385. https://doi.org/10.3390/catal9040385

Chicago/Turabian Style

Tereshchenko, Andrei, Vladimir Polyakov, Alexander Guda, Tatiana Lastovina, Yulia Pimonova, Alexey Bulgakov, Andrey Tarasov, Leonid Kustov, Vera Butova, Alexander Trigub, and Alexander Soldatov. 2019. "Ultra-Small Pd Nanoparticles on Ceria as an Advanced Catalyst for CO Oxidation" Catalysts 9, no. 4: 385. https://doi.org/10.3390/catal9040385

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Metrics

Article Access Map by Country/Region

1
Back to TopTop