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예술체육학
복합학
DBpia AI
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AI 아이디어
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Citeasy
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초록·키워드
Over the last decade, the CO<sub>2</sub> reduction reaction (CO<sub>2</sub>RR) has been increasingly exploited for the synthesis of high-value raw materials in gaseous or liquid form, although no examples of CO<sub>2</sub> fixation in nanoparticle systems have been demonstrated. Herein, CO<sub>2</sub> 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 CO<sub>2</sub> derivatives in alkaline water environment leads to <i>C</i> <sub>2</sub> and <i>C</i> <sub>3</sub> coupling with the production of carboxylic acids as a typical CO<sub>2</sub>RR fingerprint. While laser processing of preformed gold colloids is selective for <i>C</i> <sub>2</sub> coupling, both <i>C</i> <sub>2</sub> and <i>C</i> <sub>3</sub> 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 experimental conditions. In this research, new pathways are offered to be explored in energetics, photonics, catalysis, and synthesis at the nanoscale.
#Quantum yield
#Photoluminescence
#Colloidal gold
#Laser ablation
#Laser ablation synthesis in solution
#Nanoparticle
#Materials science
#Nanomaterials
#Nanotechnology
#Carbon monoxide
#Nanocomposite
#Catalysis
#Chemical engineering
#Yield (engineering)
#Photochemistry
#Laser
#Chemistry
#Organic chemistry
#Laser power scaling
#Fluorescence
#Metallurgy
#Optoelectronics
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