The Synthesis of Nanostructured Pure-Phase Catalysts by Hydrodynamic Cavitation

Moser, William R.; Sunstrom, Joseph E.; Marshik-Guerts, Barbara

doi:10.1016/b978-012508460-4/50014-0

Cited by 10 publications

(3 citation statements)

References 18 publications

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“…Therefore, knowledge on how to synthesize NPs for controlling the catalyst particle size, shape and distribution is extremely necessary. There are several methods to fabricate NPs for catalytic reactions [71][72][73]. These methods are classified as physical and chemical techniques: (i) physical methods include sputtering (dc, RF and reactive), evaporation (thermal and electron beam) and pulse laser deposition (PLD), and ion implantation; (ii) chemical methods include sol-gel, co-precipitation, impregnation, chemical vapour synthesis (CVS) and hydrothermal.…”

Section: Preparation Methods Of Nps Catalystsmentioning

confidence: 99%

Nanoparticle catalysts

Moshfegh¹

2009

J. Phys. D: Appl. Phys.

213

125

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In this review, the importance of nanoparticles (NPs), with emphasis on their general and specific properties, especially the high surface-to-volume ratio (A/V), in many technological and industrial applications is studied. Some physical and chemical preparation methods for growing several metallic and binary alloy NP catalysts are reviewed. The growth and mechanism of catalytic reactions for synthesis of 1D nanostructures such as ZnO nanowires and multiwall carbon nanotubes (MWCNTs) are discussed. Gas-phase production with emphasis on dependence of catalytic activity and selectivity on size, shape and structure of NPs is also investigated. Application of NP catalysts in several technological processes including H2 production and storage as well as antibacterial effect, gas sensors and fuel cells is discussed. The mechanism of H2 production from catalytic photoelectrochemical and photocatalytic degradation reactions of some organic dyes is discussed. Finally, the future outlook of NP catalysts in various disciplines is presented.

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Section: Preparation Methods Of Nps Catalystsmentioning

confidence: 99%

Nanoparticle catalysts

Moshfegh¹

2009

J. Phys. D: Appl. Phys.

213

125

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“…Various preparation methods for the synthesis of supported mono and bimetallic catalysts have been developed by researchers. [28][29][30][31] During the preparation of supported metal catalysts, calcination and reduction are the important steps in obtaining the required catalysts used for hydrogenation reactions. A single-step approach to attain metal on support will be very much useful in the preparation of catalysts.…”

Section: Introductionmentioning

confidence: 99%

Utilization of γ-radiation in the synthesis of bimetallic Cu–Ni catalysts for selective vapour phase hydrogenation of levulinic acid to γ-valerolactone

et al. 2023

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“…Another benefit of this property is that when nanoparticles are used as catalysts, the rate and reactivity are increased [4]. Thus, the unique properties of materials at nanoscale increases their effectiveness in various applications such as in catalysts, microelectronics, and drug-delivery systems, to name a few [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Long-Chain Hydrosilanes Mediated Phase Transfer of Aqueous Metal Nanoparticles

Cook¹,

Johnson²,

Longia³

et al. 2022

Macromol

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This research presents a new approach to the dispersion and stabilization of gold nanoparticles from aqueous to organic solution through the use of alkylsilanes. The unique phase activity of poly(hydro)silanes inspired the investigation of monomeric hydrosilanes as transfer agents. This method utilizes n-butylsilane, hexylsilane, octylsilane, and octadecylsilane as transfer agents to complete a ligand exchange, allowing the nanoparticles to flow into organic solution. These reactions were monitored and characterized through UV-Vis Spectrometry (UV-Vis), Fourier Transform Infrared Spectroscopy (FTIR), and Transmission Electron Microscopy (TEM). The gold and silver nanoparticles transferred using this protocol maintained their size and shape throughout the reaction. This phase-transfer reaction successfully transferred 2-AST stabilized gold and silver nanoparticles to a variety of organic solvents which remained stable for prolonged periods.

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The Synthesis of Nanostructured Pure-Phase Catalysts by Hydrodynamic Cavitation

Cited by 10 publications

References 18 publications

Nanoparticle catalysts

Nanoparticle catalysts

Utilization of γ-radiation in the synthesis of bimetallic Cu–Ni catalysts for selective vapour phase hydrogenation of levulinic acid to γ-valerolactone

Long-Chain Hydrosilanes Mediated Phase Transfer of Aqueous Metal Nanoparticles

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