| Grant number: | 18/03156-5 |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| Start date: | September 01, 2018 |
| End date: | August 31, 2019 |
| Field of knowledge: | Physical Sciences and Mathematics - Chemistry - Physical-Chemistry |
| Principal Investigator: | Fabio Henrique Barros de Lima |
| Grantee: | Francisco Willian de Souza Lucas |
| Host Institution: | Instituto de Química de São Carlos (IQSC). Universidade de São Paulo (USP). São Carlos , SP, Brazil |
| Associated research grant: | 13/16930-7 - Electrocatalysis V: electrocatalytic processes of chemical and electrical energy interconversion, AP.TEM |
Abstract The increasing rise in the atmospheric CO2 concentration (greenhouse gas and climate change) has encouraged the search for methods to fix this pollutant. In recent years, photo-/electro-reduction of CO2 has been highlighted as promising; beyond the consumption of this gas, it still produces fuel, or reagents such as hydrocarbons, alcohols and carboxylic acids. Several materials have been employed in this reaction, but despite the great advance of this area, there is still a great gap in the literature on the use and understanding of photo-/electrocatalysis in metal alloys (binary and ternary) and chalcogenides. Due to the existence of numerous materials that may present interesting performances, the use of the "High-Throughput" Combinatorial (HTC) approach to obtain metal alloys, and their respective chalcogenides, for application in CO2 photo-/electrochemical reduction reaction is the central objective of this project. HTC is an alternative methodology to conventional one-to-one experiments, presenting several advantages such as: accelerated experimental optimization, lower cost and quick access to a wide variety of materials. In the development of this project, materials that show evidence of selectivity of the CO2 photo-/electro-reduction to formic acid will be chosen, since it is considered one of the most profitable and feasible routes. Thus, we will study binary and ternary alloys of Sn with: Sb (not reporting in the literature, despite chemical similarity), In, Bi, Ag or Zn. These will also be submitted to thermochemical treatments for the formation of the respective chalcogenides (oxides, selenides and tellurides). After obtaining of films with remarkable performance, as proof of concept, synthetic photosynthesis reactor, or a CO2 reduction reactor coupled to a direct formic acid fuel cell will be manufactured. (AU) | |
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