Inhibition of Silver Corrosion in Nitric Acid by Some Aliphatic Amines

Wanees, S. Abd El; Mohamed, Ahmed; Azeem, Muhammad; Said, R. El

doi:10.1080/01932690903294022

Cited by 13 publications

(2 citation statements)

References 35 publications

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“…Thus with the surface of the metal insulated from the solution, the corrosion becomes signicantly more difficult. 65,66 Some insight into the role of the adsorption of the surfactant was proposed by Chen and Yeh. 67 It was proposed that the hydrophilic heads of the surfactants adsorb on the NP surfaces while the hydrophobic tails are oriented in the outward direction.…”

Section: Surface Morphology Analysismentioning

confidence: 99%

Effects of surfactants on electrochemically prepared Ag nanostructures

Fathi

Kraatz

2013

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The morphology and corrosion behavior of electrochemically prepared Ag nanostructures (NSs) have been examined in the absence and presence of potassium citrate, polyvinylpyrrolidone (PVP) and polyoxyethylene(20) sorbitan monolaurate (Tween-20). These additives give rise to morphologically distinct Ag NSs. The presence of citrate increases the dissolution of Ag and creates finer nanostructured Ag surfaces with more cavities, while Tween-20 protects the Ag surface against corrosion in alkaline solution and generates spherical non-packed nanofeatured Ag surfaces.

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Section: Surface Morphology Analysismentioning

confidence: 99%

Effects of surfactants on electrochemically prepared Ag nanostructures

Fathi

Kraatz

2013

Analyst

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“…Methods for preserving colloids rely on the formation of protective layers that passivate an otherwise reactive surface. Oxides, , metals, , polymers, , short-chain alkanethiols, , and aliphatic amines have all been used for this purpose and provide varying degrees of protection. Methods for protecting substrate-supported structures can encapsulate structures individually or form a continuous layer over both the nanostructures and the exposed substrate.…”

Section: Introductionmentioning

confidence: 99%

Stabilization of Plasmonic Silver Nanostructures with Ultrathin Oxide Coatings Formed Using Atomic Layer Deposition

et al. 2021

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Even though performance metrics position silver as the preeminent plasmonic material in the visible and near-infrared regions of the electromagnetic spectrum, it remains underutilized in applications because its properties irreversibly degrade in the environments it must operate. The emergence of shell-isolated plasmonic nanostructures as a distinct class of nanomaterials has, however, created new opportunities for the utilization of silver because its vulnerable surfaces can be encapsulated in a chemically robust transparent shell while maintaining important plasmonic properties. To fully capitalize on this opportunity requires that shell−nanostructure combinations be rationally designed where consideration is given to a parameter space encompassing nanostructure stability–property relationships. Herein, we demonstrate the layer-by-layer deposition capabilities of the atomic layer deposition (ALD) technique as a means to design shell-isolated silver nanostructures where the confined structure acts as a built-in plasmonic sensor for spectroscopically evaluating durability in air, water, and chemically aggressive environments. For all cases, appropriately designed oxide shells are shown to provide long-term stability, but where their own surface chemistry and structural integrity become limiting factors in bolstering and preserving plasmonic properties. The work, therefore, forwards the use of ALD-deposited layers for the realization of shell-isolated plasmonic nanostructures that exploit the remarkable properties of silver.

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