A5014002372- Zeolite Catalysis and Synthesis
- Mesoporous Materials and Catalysis
- Catalysis and Hydrodesulfurization Studies
- Electrocatalysts for Energy Conversion
- Catalytic Processes in Materials Science
- Metal-Organic Frameworks: Synthesis and Applications
- Layered Double Hydroxides Synthesis and Applications
- Advanced oxidation water treatment
- Polyoxometalates: Synthesis and Applications
- Asymmetric Hydrogenation and Catalysis
- Bauxite Residue and Utilization
- Catalysis for Biomass Conversion
- Chemical Synthesis and Characterization
- Nanomaterials for catalytic reactions
- Catalysis and Oxidation Reactions
- Carbon Dioxide Capture Technologies
- Chemical Synthesis and Reactions
Universidade Estadual de Campinas (UNICAMP)
2019-2024
Pontifícia Universidade Católica de Campinas
2020
The influence of framework topology on the separation carbon dioxide from methane has been studied in a set small pore pure silica zeolites with CHA, IHW, ITW, LTA, MTF and RWR structures. To isolate this effect, composition materials kept constant by using materials, which have neither aluminium their nor extraframework cations that can alter adsorption behaviour. Pure component isotherms breakthrough experiments synthetic mixtures resembling biogas natural gas conducted. Materials Si-RWR...
The catalytic performance of γ-Fe2O3 nanopowder was investigated in the acetone hydrodeoxygenation (HDO) reaction, an essential reaction biomass valorization. Sequential reduction/oxidation thermal pre-treatments induced significant structural and electronic modifications that directly impacted its performance. co-existence Fe3+/Fe2+/Fe0 sites led to different pathways (C-C coupling, hydrogenolysis, hydrogenation, (hydro)deoxygenation) formed a wide range products. correlation data provided...
The catalytic performance of γ-Fe2O3 nanopowder was investigated in the acetone hydrodeoxygenation (HDO) reaction, an essential reaction biomass valorization. Sequential reduction/oxidation thermal pre-treatments induced significant structural and electronic modifications that directly impacted its performance. co-existence Fe3+/Fe2+/Fe0 sites led to different pathways (C-C coupling, hydrogenolysis, hydrogenation, (hydro)deoxygenation) formed a wide range products. correlation data provided...
Abstract Metal oxides have attracted attention as catalysts for various reduction and oxidation reactions due to their abundance, inexpensiveness, the possibility of combining different catalytic sites (e. g., acid‐base, redox, oxygen vacancy sites). Previous results demonstrated that metal are promising candidates hydrodeoxygenation (HDO) reaction, one processes aim upgrade biomass‐derived products by reducing content. In this work, molybdenum oxide (MoO 3 ) was subjected acetone HDO...
The design and tuning of active sites (e.g., metallic, acid, redox sites) are crucial for developing active, selective, stable catalysts. Metal-support interactions (MSI) the creation interfacial can tailor catalytic performance metal/oxide catalysts various reactions, directly impacting C-O, C-C, C-H bond activation H2 spillover. By modulating acidity support (i.e., Brønsted-rich or Lewis-rich), we elucidate role acid over acetone hydrodeoxygenation reaction pathways. favor formation...
Vapor adsorption experiments support the catalytic results of H-[Al]-magadiite and H-[Al]-RUB-18, once interlamellar space swell accommodate substrate molecules.
Understanding how to tune the properties of metal oxides, e.g. controlling and manipulating defects catalytic sites, establishing a clear understanding support interactions is essential for developing catalysts with enhanced activity, selectivity, stability. Here, we report synthesis Pt-supported Ti-Nb mixed aiming acidity modulation Brønsted Lewis acid sites catalysts’ surface. Results demonstrated that catalyst richer in was promising candidate acetone hydrodeoxygenation reaction,...
Zeolites are microporous, aluminosilicate minerals extensively used in industry. An interesting feature about these materials is their good performance as ion exchangers, which allows the capture of metal cations considered toxic and harmful, for example. In this work, magnetic zeolites from LTA group were prepared using particles found red mud resulting a core-shell system. The perspective to apply obtained composites water treatment be able remove them taking advantage behavior.