Design of Experiments in optimization of constituents in high entropic oxides for CO2 hydrogenation to methanol

BSc. Angela KIENBERGER

Master's thesis

Design of experiment in optimization of constitutents in high entropy oxides for CO2 hydrogenation to methanol

Abstract:

The focus of this thesis was the synthesis and optimization of high-entropy oxides (HEOs) as heterogeneous catalysts for CO2 hydrogenation to methanol. HEOs are of particular interest because their compositional diversity can improve catalyst stability and performance under the challenging conditions of CO2 hydrogenation. Therefore, a suitable synthesis strategy for HEO catalysts was developed and investigated. To address the vast compositional complexity of these materials, a structured Design of Experiments (DoE) approach was employed to assess the influence of individual constituents and systematically explore the compositional space of the catalysts. This approach allowed for the identification of the most impactful constituents and provided a framework for further optimization of HEO catalyst compositions.

Abstract:

The focus of this thesis was the synthesis and optimization of high-entropy oxides (HEOs) as heterogeneous catalysts for CO2 hydrogenation to methanol. HEOs are of particular interest because their compositional diversity can improve catalyst stability and performance under the challenging conditions of CO2 hydrogenation. Therefore, a suitable synthesis strategy for HEO catalysts was developed and investigated. To address the vast compositional complexity of these materials, a structured Design of Experiments (DoE) approach was employed to assess the influence of individual constituents and systematically explore the compositional space of the catalysts. This approach allowed for the identification of the most impactful constituents and provided a framework for further optimization of HEO catalyst compositions.

Keywords

High-entropy oxides, CO2 transformation to methanol, Design of Experiments

Jazyk práce: English

Datum vytvoření / odevzdání či podání práce: 19. 2. 2026

Obhajoba závěrečné práce

• Vedúci: prof. Dr. Christian Paulik, RNDr. Ján Štěrba, Ph.D.

UNIVERSITY OF SOUTH BOHEMIA IN ČESKÉ BUDĚJOVICE

Faculty of Science

Master programme / odbor:
Biological Chemistry / Biological Chemistry