Support properties in applied to the formation of sulfur dioxide oxidation catalysts

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作者

Olga Kovalenko¹ , Irina Simentsova¹ , Evgeniy Paukshtis¹

1. 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

In the work has been shown that on modifying of diatomite proceeds in specific adsorption of V2O5 on the base centers of impurity oxides of Al, Ti, and Fe. As a result, the diatomite surface is positively charged: a) according to IR spectroscopy, the basic sites disappear, and the strength of the acid sites increases; b) the point of zero charge decreases: 7.85 →3.97. The activity of the catalyst on the modified diatomite by 15% exceeds the activity of the catalyst on the initial diatomite. Thus, it can be assumed that modification with vanadium contributes to the uniform distribution of the melt of the active component on the support and leads to a decrease in the ignition temperature of the catalyst.

关键词

Acid-base surface properties, Diatomite, Adsorption of V2O5

研究领域

Chemistry

参考文献

1. N.V. Spiridonova, B.M. Maslennikov et.al. Proceedings of NIUIF, M., 1977, V.230, С.19-22
2. S.A. Lavrishcheva, L.A. Nefedova et.al. Chem. Chem. Tech., 2005, V.48, 1, C.105-109
3. F. Cavalca, P. Beato et.al. J. Phys. Chem. C, 2017, V.121, 6, C.3350–3364

基金

暂无数据

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 Kovalenko 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.