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Synthesis of nanowires for application in the reduction reaction of carbon dioxide

Grant number: 19/08244-2
Support type:Scholarships in Brazil - Doctorate
Effective date (Start): September 01, 2019
Effective date (End): July 31, 2023
Field of knowledge:Physical Sciences and Mathematics - Chemistry - Physical-Chemistry
Principal Investigator:Raphael Nagao de Sousa
Grantee:Maria Rodrigues Pinto
Home Institution: Instituto de Química (IQ). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
Associated research grant:16/01817-9 - Design and control of self-organized electrochemical patterns, AP.JP


New technologies that mimic photosynthesis, a complex reaction that occurs in living organisms, are vital in today's society since they bring the possibility of converting carbon dioxide into energy-rich molecules such as methane and ethylene. The development of new methodologies for control and rational design of materials that can be used as catalysts must be carried out keeping in mind the challenge of promoting the highest selectivity and conversion efficiency possible. It is common to observe multiple reactions happening simultaneously in electrochemical systems, so in order to understand in detail the processes that occur in the system it is necessary to use rapid monitoring techniques that, combined with the electrochemical information, lead to a deeper understanding of the system. This project proposes to establish relationships between new materials for catalytic purposes with information about the molecular kinetic chemistry involved and, consequently, to selective obtain molecules of interest through the knowledge of the mechanistic aspects. The electrocatalytic material to be studied proposed in this work consists of multilayer copper/copper oxide nanowires, in which the conductive and electrocatalytic characteristics can be combined with synergistic effects. The oscillatory electrodeposition reaction will be used in order to perform the growth of the nanowires on anodized alumina oxide substrate containing self-organized nanopores. On-line mass spectrometry coupled to the electrochemical cell will be used for the monitoring of volatile reaction intermediates, thus evaluating the performance of the proposed catalyst. (AU)

Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
PINTO, MARIA R.; PEREIRA, GUILHERME B.; QUEIROZ, ADRIANA C.; NAGAO, RAPHAEL. Influence of the Ligands in Cu(II) Complexes on the Oscillatory Electrodeposition of Cu/Cu2O. Journal of Physical Chemistry C, v. 124, n. 23, p. 12559-12568, JUN 11 2020. Web of Science Citations: 0.
PINTO, MARIA R.; COSTA, GABRIEL F.; MACHADO, EDUARDO G.; NAGAO, RAPHAEL. Self-Organization in Electrochemical Synthesis as a Methodology towards New Materials. CHEMELECTROCHEM, v. 7, n. 14 MAY 2020. Web of Science Citations: 0.

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