Abstract
Gold nanoparticles (AuNPs) were functionalized by ruthenium porphyrins through a sulfur/gold covalent bond using a three-steps reaction. The catalyst was characterized by scanning electron microscopy (SEM) and thermogravimetric analysis (TGA) in order to control the binding of ruthenium porphyrin on AuNPs’ surface. The catalyst was tested and compared with an analog system not bound to AuNPs in the oligomerization reaction using 1-phenylacetylene as the substrate.
Highlights
Gold nanoparticles (AuNPs) are attracting the attention of a large community of scientists because of their tunable electronic structures that generate useful characteristics such as size-related and shape-related optoelectronic properties [1,2,3]. large surface-tovolume ratio, excellent biocompatibility, and low toxicity [4,5,6], which stimulated their applications in several fields such as biotechnology [7,8], sensing [9], and catalysis [10]
Hybrid architectures composed of both porphyrin/metalloporphyrin and different materials such as organic or inorganic nanoparticles [14,15] and carbon-based-nanomaterials [16], obtained by a bottom-up approach, are well suited for the formation of functional nanostructures [17] that display structural control and synergic functionalities
We investigated the functionalization of AuNPs with a Ruthiomethyl-tetraphenylporphyrin (Ru-TPP-CH2 -SH) and compared the selectivity of coupled compound Ru-TPP-CH2 S-AuNPs to separate moieties for the oligomerization of phenylacetylene
Summary
Ru-Porphyrin and Their Selectivity inGold nanoparticles (AuNPs) are attracting the attention of a large community of scientists because of their tunable electronic structures that generate useful characteristics such as size-related and shape-related optoelectronic properties [1,2,3]. large surface-tovolume ratio, excellent biocompatibility, and low toxicity [4,5,6], which stimulated their applications in several fields such as biotechnology [7,8], sensing [9], and catalysis [10].Properties and applications of AuNPs can be tuned by functionalization, which allows the imprinting of a hydrophilic or a hydrophobic character, varies hindrance, and influences photoluminescence. Hybrid architectures composed of both porphyrin/metalloporphyrin and different materials such as organic or inorganic nanoparticles [14,15] and carbon-based-nanomaterials [16], obtained by a bottom-up approach, are well suited for the formation of functional nanostructures [17] that display structural control and synergic functionalities These preparation methods will result in the formation of unique materials with properties fundamental for the development of compounds that find wide space in several fields such as optics [18,19,20,21,22]; electronics [23]; photodynamic therapy [24]; materials able to enhance light absorption [25]; and catalysis [26].
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