Over the last decade, the CO2 reduction reaction (CO2RR) has been increasingly exploited for the synthesis of high-value raw materials in gaseous or liquid form, although no examples of CO2 fixation in nanoparticle systems have been dem- onstrated. Herein, CO2 fixation into solid nanomaterials by laser synthesis and processing of gold colloids in water, traditionally considered a green approach leading to ligand-free nanoparticles without the formation of by-products, is reported. If carbon monoxide-rich gold nanoparticles are observable even after synthesis in deionized water, the presence of CO2 derivatives in alkaline water environment leads to C2 and C3 coupling with the production of carboxylic acids as a typical CO2RR fingerprint. While laser processing of preformed gold colloids is selective for C2 coupling, both C2 and C3 coupling to lactic acid are observed during pulsed laser ablation of a gold target. In the latter case, it is demonstrated that it is possible to synthesize photoluminescent organometallic nanocomposites in the blue spectral region with a quantum yield of about 20% under adequate experi- mental conditions. In this research, new pathways are offered to be explored in energetics, photonics, catalysis, and synthesis at the nanoscale.

Pulsed-Laser-Driven CO2 Reduction Reaction for the Control of the Photoluminescence Quantum Yield of Organometallic Gold Nanocomposites / Tahir, Guilherme C. Concas, Mariana Gisbert, Marco Cremona, Fernando Lazaro, Marcelo Eduardo H. Maia da Costa, Suellen D. T. De Barros, Ricardo Q. Aucélio, Tatiana Saint Pierre, José Marcus Godoy, Diogo Mendes, Gino Mariotto, Nicola Daldosso, Francesco Enrichi, Alexandre Cuin, Aldebarã F. Ferreira, Walter M. de Azevedo, Geronimo Perez, Celso SantAnna, Braulio Soares Archanjo, Yordy E. Licea Fonseca, Andre L. Rossi, Francis L. Deepak, Rajwali Khan, Quaid Zaman, Sven Reichenberger, Theo Fromme, Giancarlo Margheri, José R. Sabino, Gabriella Fibbi, Mario Del Rosso, Anastasia Chillà, Francesca Margheri, Anna Laurenzana, Tommaso Del Rosso. - In: SMALL SCIENCE. - ISSN 2688-4046. - ELETTRONICO. - (2024), pp. 1-15. [10.1002/smsc.202300328]

Pulsed-Laser-Driven CO2 Reduction Reaction for the Control of the Photoluminescence Quantum Yield of Organometallic Gold Nanocomposites

Gabriella Fibbi;Mario Del Rosso;Anastasia Chillà;Francesca Margheri;Anna Laurenzana
;
Tommaso Del Rosso
2024

Abstract

Over the last decade, the CO2 reduction reaction (CO2RR) has been increasingly exploited for the synthesis of high-value raw materials in gaseous or liquid form, although no examples of CO2 fixation in nanoparticle systems have been dem- onstrated. Herein, CO2 fixation into solid nanomaterials by laser synthesis and processing of gold colloids in water, traditionally considered a green approach leading to ligand-free nanoparticles without the formation of by-products, is reported. If carbon monoxide-rich gold nanoparticles are observable even after synthesis in deionized water, the presence of CO2 derivatives in alkaline water environment leads to C2 and C3 coupling with the production of carboxylic acids as a typical CO2RR fingerprint. While laser processing of preformed gold colloids is selective for C2 coupling, both C2 and C3 coupling to lactic acid are observed during pulsed laser ablation of a gold target. In the latter case, it is demonstrated that it is possible to synthesize photoluminescent organometallic nanocomposites in the blue spectral region with a quantum yield of about 20% under adequate experi- mental conditions. In this research, new pathways are offered to be explored in energetics, photonics, catalysis, and synthesis at the nanoscale.
2024
1
15
Tahir, Guilherme C. Concas, Mariana Gisbert, Marco Cremona, Fernando Lazaro, Marcelo Eduardo H. Maia da Costa, Suellen D. T. De Barros, Ricardo Q. Aucélio, Tatiana Saint Pierre, José Marcus Godoy, Diogo Mendes, Gino Mariotto, Nicola Daldosso, Francesco Enrichi, Alexandre Cuin, Aldebarã F. Ferreira, Walter M. de Azevedo, Geronimo Perez, Celso SantAnna, Braulio Soares Archanjo, Yordy E. Licea Fonseca, Andre L. Rossi, Francis L. Deepak, Rajwali Khan, Quaid Zaman, Sven Reichenberger, Theo Fromme, Giancarlo Margheri, José R. Sabino, Gabriella Fibbi, Mario Del Rosso, Anastasia Chillà, Francesca Margheri, Anna Laurenzana, Tommaso Del Rosso
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/1357497
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