Recent advances in soluble ruthenium(0) nanocatalysts and their reactivity

Reshi, Noor U Din; Samuelson, Ashoka G.

doi:10.1016/j.apcata.2020.117561

Cited by 5 publications

(3 citation statements)

References 174 publications

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“…9 Rare metal NPs such as Rh, 10 Ir, 11 Pt and Pd, 12 Ru (ref. 13) and Os (ref. 14) were investigated for their catalytic activity and they proved to be highly active in the splitting of base chemicals such as hydrocarbons, alcohols and ketones for the production of hydrogen.…”

Section: Introductionmentioning

confidence: 99%

A sustainable, top-down mechanosynthesis of carbohydrate-functionalized silver nanoparticles

et al. 2022

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Section: Introductionmentioning

confidence: 99%

A sustainable, top-down mechanosynthesis of carbohydrate-functionalized silver nanoparticles

et al. 2022

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“…In this sense, some of us have reported the use of Ru NPs for the selective deuteration of several nitrogen- and sulfur-containing bioactive compounds. , Afterward, this protocol has been extended to the enantiospecific deuteration of a large diversity of amino acids . Nevertheless, if the protocol is extended to aromatic substrates, Ru NPs display a major drawback because of their high activity in the reduction of these substrates. , In contrast, the functionalization of NPs with organic ligands permits us not only to stabilize them in the reaction medium but also to tune the solubility, selectivity, and catalytic activity, which can constitute a great advantage over conventional heterogeneous catalysts . In this sense, N-heterocyclic carbene (NHC) ligands have emerged as versatile NPs stabilizers due to their unique stereoelectronic properties. − Thus, we reported the synthesis of water-soluble NHC-stabilized Ru NPs that could successfully deuterate the CH 2 -α, CH 2 -γ, and CH 2 -ε positions with respect to the amino acid moiety at pH >10 .…”

Section: Introductionmentioning

confidence: 99%

N-Heterocyclic Carbene-Based Iridium and Ruthenium/Iridium Nanoparticles for the Hydrogen Isotope Exchange Reaction through C–H Bond Activations

et al. 2022

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Suppressing aromatic ring reduction in noble-metal-catalyzed H/D exchange reactions remains a challenge. This drawback may be overcome by finding a synergetic effect in bimetallic nanoparticles (NPs). Herein, we report the synthesis of bimetallic lipo- and water-soluble Ru/Ir NPs. They were characterized by state-of-the-art techniques such as transmission electron microscopy (TEM), high-resolution TEM, attenuated total reflection Fourier transform infrared, powder X-ray diffraction, and solid-state nuclear magnetic resonance. These NPs were found to disperse in both organic and aqueous media because of the stabilization and coordination of adequate N-heterocyclic carbene (NHC) ligands to the NP surface. They were tested in the deuteration of 2-phenylpyridine, 2-methyl-naphthylamine, 5,6,7,8-tetrahydro-naphthtylamine, and l-lysine using D2 as the isotopic source. Bimetallic NPs showed an unusual selectivity toward the H/D exchange of 2-phenylpyridine, deuterating not only the expected C–H positions close to the N atom but also remote positions on the heterocycle. Additionally, reduction of the aromatic rings, which is a common undesired side reaction catalyzed by Ru NPs, was not observed. These outcomes, rationalized by a synergetic effect of both metals, are enhanced when NHC ligands are on the surface in comparison to model catalysts stabilized by polyvinylpyrrolidone. With regard to non-aromatic substrates, CH2-α and CH2-ε positions with respect to the amino acid group of l-lysine were fully deuterated, while moderate deuteration of the γ position was observed as the iridium content was increased in the bimetallic system.

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“…In the next section, examples of such compounds and several Ru usages are discussed. Its applications are primarily in the fields of technical devices, catalysis, and sensors. − In addition, Ru work as a novel catalyst in variety of processes, including Fischer–Tropsch, C–H activation, oxidation, , reduction, ammonia synthesis, C–C coupling, CO 2 conversion, H 2 production, and so on. Furthermore, in recent years, there has been considerable expansion and evaluation in the field of coordination, organometallic chemistry of Ru.…”

Section: Introductionmentioning

confidence: 99%

Review of the Design of Ruthenium-Based Nanomaterials and Their Sensing Applications in Electrochemistry

Veerakumar

Hung

et al. 2022

J. Agric. Food Chem.

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In this review, ruthenium nanoparticles (Ru NPs)-based functional nanomaterials have attractive electrocatalytic characteristics and they offer considerable potential in a number of fields. Ru-based binary or multimetallic NPs are widely utilized for electrode modification because of their unique electrocatalytic properties, enhanced surface-area-to-volume ratio, and synergistic effect between two metals provides as an effective improved electrode sensor. This perspective review suggests the current research and development of Ru-based nanomaterials as a platform for electrochemical (EC) sensing of harmful substances, biomolecules, insecticides, pharmaceuticals, and environmental pollutants. The advantages and limitations of mono-, bi-, and multimetallic Rubased nanocomposites for EC sensors are discussed. Besides, the relevant EC properties and analyte sensing approaches are also presented. On the basis of these insights, we highlighted recent results for synthesizing techniques and EC environmental pollutant sensors from the perspectives of diverse supports, including graphene, carbon nanotubes, silica, semiconductors, metal sulfides, and polymers. Finally, this work overviews the modern improvements in the utilization of Ru-based nanocomposites on the basis for electroanalytical sensors as well as suggestions for the field's future development.

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Recent advances in soluble ruthenium(0) nanocatalysts and their reactivity

Cited by 5 publications

References 174 publications

A sustainable, top-down mechanosynthesis of carbohydrate-functionalized silver nanoparticles

A sustainable, top-down mechanosynthesis of carbohydrate-functionalized silver nanoparticles

N-Heterocyclic Carbene-Based Iridium and Ruthenium/Iridium Nanoparticles for the Hydrogen Isotope Exchange Reaction through C–H Bond Activations

Review of the Design of Ruthenium-Based Nanomaterials and Their Sensing Applications in Electrochemistry

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