Copper content effect in V₂O₅/TiO₂–ZrO₂ catalysts prepared by the sol–gel method

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发表日期：

2024年6月7日

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Pastora Salinas-Hernández,
Maribel Jiménez Guerra,
Fernando Chávez Rivas,
Raúl Pérez Hernández,
Mario A. Romero Romo,
Fernando Morales-Anzures,
Gloria Berlier

摘要

Cu–V/TiO₂–ZrO₂ catalysts were prepared by the sol–gel method. The XRD results show the formation of an amorphous phase. With the EPR technique, Cu²⁺ and V⁴⁺ ions were identified and confirmed by UV–Vis-RD. The TPR technique showed modifications in the reducibility of copper and vanadium, and species present in the catalysts, which depend on the copper content. Cu additions to V/TiO₂–ZrO₂ catalysts improve the basic properties that influence the production of acetone that is selectively formed in this kind of sites, in addition to improving the specific surface area of the catalytic materials. These changes had a positive impact on the CO oxidation reaction.

Graphical Abstract

Copper content effect in V2O5/TiO2–ZrO2 catalysts prepared by the sol–gel method

摘要

Copper content effect in V₂O₅/TiO₂–ZrO₂ catalysts prepared by the sol–gel method