Structural analysis of Ru/Ce1-xZrxO2 catalysts for the carbon dioxide methanation

作者

Nadezhda Kharchenko¹ , Vera Pakharukova¹ , Anna Gorlova¹ , Olga Stonkus² , Andrey Saraev² , Vladimir Rogozhnikov² , Dmitriy Potemkin²

1. Boreskov Institute of Catalysis, Novosibirsk, Russia; Novosibirsk State University, Novosibirsk
2. Boreskov Institute of Catalysis, Novosibirsk, Russia

会议/活动

8th Asian Symposium on Advanced Materials ASAM-8, July 2023 (Novosibirsk, Russian Federation)

海报摘要

Reduction of the amount of carbon dioxide emissions into the atmosphere is one of the eco-scientific challenges. The catalytic process of CO2 methanation is of practical importance due to its use for CO2 utilization with simultaneous synthesis of energy carrier, methane. Ruthenium-based catalysts, for example, Ru/CeO2 and Ru/Ce1-xZrxO2 are known to be highly active in methanation processes. However, there is little information about structure of ruthenium-containing particles due to their high dispersion. Such studies require the use of methods that allow to solve structure at the atomic. In this case, the X-ray atomic pair distribution function (PDF) analysis can be effective. This poster presents the results of structural studies of the supported Ru/Ce1-xZrxO2 heterogeneous catalysts. For this purpose, powder X-ray diffraction (XRD) methods and PDF analysis were used. Some attention is paid to the study on structural evolution of catalyst upon its activation via reduction with use of in-situ XRD.

关键词

Ruthenium, Ce1-xZrxO2, X-ray atomic pair distribution function analysis, CO2 methanation, In situ XRD, Powder X-ray diffraction

研究领域

Material Sciences, Physics, Environmental Sciences

参考文献

1. Kim A. et al. Mesoporous TiO2 support materials for Ru-based CO2 methanation catalysts //ACS Applied Nano Materials. – 2019. – Т. 2. – №. 5. – С. 3220–3230
2. López-Rodríguez S. et al. Effect of Ru loading on Ru/CeO2 catalysts for CO2 methanation //Molecular Catalysis. – 2021. – Т. 515. – С. 111911.
3. Rynkowski J. M. et al. Characterization of Ru/CeO2-Al2O3 catalysts and their performance in CO2 methanation //Reaction Kinetics and Catalysis Letters. – 2000. – Т. 71. – С. 55-64

基金

1. Russian Science Foundation (No. 21–73–20075)

补充材料

暂无数据

附加信息

利益冲突

No competing interests were disclosed.

数据可用性声明

The datasets generated during and / or analyzed during the current study are available from the corresponding author on reasonable request.

知识共享许可协议

Copyright © 2023 Kharchenko et al. This is an open access work distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.