Hybrid nanomaterials for energy conversion: integrating plasmonic nanostructures and photoluminescent nanomaterials

• Grant number: 17/07564-8
• Support Opportunities: Scholarships in Brazil - Master
• Start date: July 01, 2017
• End date: February 28, 2019
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Inorganic Chemistry
• Agreement: Coordination of Improvement of Higher Education Personnel (CAPES)
• Principal Investigator: Pedro Henrique Cury Camargo
• Grantee: Thaylan Pinheiro Araújo
• Host Institution: Instituto de Química (IQ). Universidade de São Paulo (USP). São Paulo , SP, Brazil
• Associated research grant: 15/26308-7 - Optimization of the physicochemical properties of nano -structured materials for applications in molecular recognition, catalysis and energy conversion/storage, AP.TEM
• Associated scholarship(s): 17/25882-7 - In situ/operando investigation of CO2 hydrogenation process on Au/N-DOPED carbon surfaces: probing catalytically important properties, BE.EP.MS

Abstract

This project aims to obtain a new class of hybrid nanomaterials, which are described by the integration of photoluminescent carbon nanodots (CNDs), doped or not with heteroatoms (N, S, B and P), and silver (Ag) or gold (Au) plasmonic nanostructures. This will be directed towards to the application of these in the conversion of solar energy to fuels. In these nanomaterials, we are interested on preparing core@shell structures in which the CNDs appear as the core, while the plasmonic nanostructures as the shell. In this sense, the first stage of this project will focus on the development and optimization of synthetic routes for such structures, in which we intend to achieve excellent control over their uniformity, morphology, size and composition. In the second part of this project, the synthesized nanomaterials will be used as photocatalysts targeting the production of H2 fuel from the photocatalytic water splitting reaction. In this case, we will investigate the photocatalytic activity of these nanomaterials as function of their morphologies, sizes and compositions. In the third step, we will expand this study to verify how the hybrid nanomaterials and photocatalytic properties are influenced by the combination of the CNDs up-conversion photoluminescence effect and the phenomena of localized surface plasmon resonance of the Ag or Au plasmonic nanostructures. It is expected that based on this knowledge, we can optimize quite accurately the photocatalytic properties of hybrid nanomaterials composed by CNDs and plasmonic nanostructures. (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)

FIORIO, JHONATAN L.; ARAUJO, THAYLAN P.; BARBOSA, EDUARDO C. M.; QUIROZ, JHON; CAMARGO, PEDRO H. C.; RUDOLPH, MATTHIAS; HASHMI, A. STEPHEN K.; ROSSI, LIANE M.. Gold-amine cooperative catalysis for reductions and reductive aminations using formic acid as hydrogen source. APPLIED CATALYSIS B-ENVIRONMENTAL, v. 267, JUN 15 2020. (15/11452-5, 15/21366-9, 15/26308-7, 16/17866-9, 17/07564-8, 16/16738-7)

ARAUJO, THAYLAN P.; QUIROZ, JHON; BARBOSA, EDUARDO C. M.; CAMARGO, PEDRO H. C.. Understanding plasmonic catalysis with controlled nanomaterials based on catalytic and plasmonic metals. CURRENT OPINION IN COLLOID & INTERFACE SCIENCE, v. 39, p. 110-122, FEB 2019. (17/07564-8, 15/26308-7, 16/17866-9, 15/11452-5)

QUIROZ, JHON; BARBOSA, EDUARDO C. M.; ARAUJO, THAYLAN P.; FIORIO, JHONATAN L.; WANG, YI-CHI; ZOU, YI-CHAO; MOU, TONG; ALVES, TIAGO V.; DE OLIVEIRA, DANIELA C.; WANG, BIN; et al. Controlling Reaction Selectivity over Hybrid Plasmonic Nanocatalysts. Nano Letters, v. 18, n. 11, p. 7289-7297, NOV 2018. (15/26308-7, 17/07564-8, 16/16738-7, 15/21366-9, 16/17866-9, 15/11452-5)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

ARAÚJO, Thaylan Pinheiro. Catalysts based on transition metals for applications in energy conversion. 2019. Master's Dissertation - Universidade de São Paulo (USP). Conjunto das Químicas (IQ e FCF) (CQ/DBDCQ) São Paulo.