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Universidade Estadual Paulista (UNESP). Campus de Araraquara. Instituto de Química (IQ) (Institutional affiliation from the last research proposal) Birthplace: Brazil
Leandro Pierroni Martins in research grants and scholarships supported by FAPESP.
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This proposal aims to find technological solutions as well as to promote the development of our country's sustainable fuel industry, and consequently, to contribute to the reduction of atmospheric pollutants. The gas emissions from fossil fuels burn make evident the need of more efficient and renewable energy resources. In this context, one of the biggest challenges from this century is t…
This proposal aims to study the synthesis of nanosized zeolites in discrete particles ("single crystals"), smaller than 100 nm, and their applications as catalysts. The synthesis of nanosized zeolites poses an important challenge for their catalytic applications: the reduction in crystal size leads to a large amount of SiOH silanol groups on the surface, generated due to interrupted cryst…
In 20 years we are expected to reach the Natural Gas Golden Age, when methane will play a leading role as primary industrial feedstock. Hence, this proposal aims to develop fundamental and applied knowledge for the catalytic conversion of CH4 by oxidative routes, as well as the utilization of CO2 a greenhouse gas present in natural gas (and also by product of methane reforming). It is pro…
Mixed oxides based on vanadium and molybdenum are prominent catalysts for performing oxidation reactions due to the oxidative potential of vanadium in these structures. Catalytic oxidation is under constant study and the mechanism is primarily due to the redox cycle: creation of surface vacancies of oxygen and consequent rearrangement of oxygen atoms through the oxide structure to provide…
This new century has been characterized by intense research on the use of renewable sources for the production of base chemical compounds, such as conversion of ethanol, biodiesel, glycerol and lignino cellulosic materials and also in the preservation of the environment with the conversion of NOx and CO2 into products with low environmental impact. However, there is a need for extensive r…
In 20 years we are expected to reach the Natural Gas Golden Age, when methane will play a leading role as primary industrial feedstock. Hence, this proposal aims to develop fundamental and applied knowledge for the catalytic conversion of CH4 by oxidative routes, as well as the utilization of CO2 a greenhouse gas present in natural gas (and also by product of methane reforming). It is pro…
(Only some records are available in English at this moment)
The conversion of methanol to hydrocarbons (MTH - methanol to hydrocarbons) using acidic zeolites, especially ZSM-5, is closely related to the pronounced confinement effect of the reaction intermediates in the catalyst pores, composed of straight and sinusoidal channels. These two channels have an intersection point with a diameter slightly larger than that of the channels. The latest stu…
The project aims to develop and evaluate nickel-based catalysts supported on hierarchical ZSM-5 zeolites, with different Si/Al ratios, for application in hydrotreatment reactions of vegetable oils aiming at the production of hydrotreated vegetable oil (HVO), an advanced and sustainable biofuel. The motivation comes from the growing demand for renewable energy sources and the limitations a…
Propylene is an important raw material and has been suffering with high demand and low supply in the global market. Propylene production by propane dehydrogenation (DHP) has been used to try to fill this gap, but this reaction suffers from severe deactivation and is an endothermic reaction, which makes it very costly energetically. A promising alternative to DHP has been found in the oxid…
Ethanol to hydrocarbons (ETH) reactions have received special attention due to the environmental problems caused by the use of fossil fuels. Its potential can be especially explored in the Brazilian scenario, where the production of ethanol from renewable sources is consolidated. These reactions can be carried out via heterogeneous catalysis by protonic zeolites, especially H-ZSM-5. In th…
In this project, acid catalysts based on the FAU structure will be used. These zeolites present adjustable micro-mesoporosity and variations of the hydrophobic-hydrophilic balance depending on their chemical composition. In a few two-phase reaction systems, the issue of phase immiscibility can be a problem for the overall performance of the process, so the choice of catalysts that favor p…
The conversion of methanol to olefins is often carried out in zeolites of Chabazite structure and the main obstacle of this technology is the obtaining of the zeolitic catalyst, as it involves the use of an aqueous reaction mixture containing an organic structure directing agent, in addition to the longtime of synthesis and high temperatures. As a strategy to overcome the limitations aris…
(Only some records are available in English at this moment)
The production of propylene, an essential organic chemical used in the manufacturing of various industrial products, is currently facing a demand-supply gap due to the switch from naphtha cracking to shale gas cracking. To overcome this issue, oxidative dehydrogenation of propane (ODHP) has emerged as a promising alternative to the dehydrogenation of propane (DHP), which is the commonly u…
This BEPE project intends to carry out the complete acid characterization of FAU catalysts, micro-mesoporous and with varied hydrophilicity, used in the ketalization reaction of glycerol with acetone. The reaction takes place via acid catalysis in a two-phase liquid-liquid system. A set of five catalysts showed that the porosity and affinity of the catalyst with the two phases play an imp…
Utilization of zeolites has been a strategic focus in converting carbon dioxide (CO2) into industrial chemicals because CO2 is one of the main greenhouse gases and has high concentration in atmosphere. Zeolites are microporous crystalline aluminosilicates widely employed in several catalytic reactions due to their selectivity, well-defined microporous structure, high specific area, high t…
(Only some records are available in English at this moment)
| 3 / 3 | Ongoing grants |
| 9 / 7 | Completed research grants |
| 3 / 3 | Ongoing scholarships in Brazil |
| 24 / 17 | Completed scholarships in Brazil |
| 9 / 9 | Completed scholarships abroad |
| 48 / 39 | All research grants and scholarships |
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