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Yemets, B. G.

doi:10.1023/a:1026472929088

Cited by 4 publications

(7 citation statements)

References 7 publications

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“…To conclude, we reported here on interesting observations relating to the effects of rf-treatment on electrochemical deposition and its stabilization by nanoparticle doping. We propose that the previously reported anomalous effects of rf-treatment [58][59][60][61][62][63][64][65][66][67][68][69] together with our new findings hint to the existence of unknown physical phenomena related to the fundamental properties of water. The experiments reported here might provide important clues to revealing these principles.…”

Section: D256supporting

confidence: 66%

“…58, our guiding assumption is that the effects of rf-irradiation are mainly mediated via the formation of stable nanobubbles in the solution. In the next section we provide a concise summary of previous studies that support the idea that rf-irradiation of water can lead to the formation of stable ͑hours͒ array of gas nanobubbles 59,60,65,67 A new idea hinted at by the experimental findings presented here is that the ordered shell of the nanobubbles induces long range water structure and that this induced order can act as new singular perturbation mechanisms that affect patterning both on the micro-and macrolevels.…”

supporting

confidence: 52%

“…The chain of explanation begins with the idea that rf-irradiation of water and aqueous solutions can lead to the formation of stable ͑hours͒ gas nanobubbles. 59,60,65,67 The latter induce ordering in the water around them that is assumed to generate the observed anomalous effects of the rf-treatment. This idea is strongly supported by the fact that degassing of the treated water or solutions erases the effects, and rf-treatment has no effect on degassed water.…”

Section: Discussionmentioning

confidence: 99%

“…This idea is strongly supported by the fact that degassing of the treated water or solutions erases the effects, and rf-treatment has no effect on degassed water. [58][59][60][61][62][63][64][65][66][67][68][69] Let us look again at the previously proposed assumptions in the literature regarding the formation and effects of nanobubbles ͑see the first section͒: ͑1͒ The nanobubbles have long-term stability ͑hours͒; ͑2͒ the gas-water interface of the nanobubbles is hydrophobic and therefore the water molecules form clathrate shells with an "icelike" structure around the gas nanobubbles; ͑3͒ the ordered shells can induce order in the water molecules surrounding the nanobubbles that extends up to a micrometer in range.…”

Section: Discussionmentioning

confidence: 99%

“…During the past two decades, much effort has been devoted in various fields of science and engineering to study the effects of rf-irradiation on the behavior of aqueous solutions and suspensions. [58][59][60][61][62][63][64][65][66][67][68][69][70][71][72][73][74][75] The following long term effects of rf treatment are currently well documented. ͑1͒ Intake of dissolved air from the water into nanobubbles and formation of nanobubbles.…”

Section: The Effects Of Rf-irradiation On Water and Aqueous Solutionsmentioning

confidence: 99%

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The Effect of rf-Irradiation on Electrochemical Deposition and Its Stabilization by Nanoparticle Doping

Katsir

Miller

Aharonov

et al. 2007

J. Electrochem. Soc.

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Qualitative observations of electrochemical deposition in thin circular cells have shown that radio-frequency ͑rf͒ irradiation of zinc sulfate solutions can dramatically affect the deposition patterns. For some growth parameters the rf-treatment can even induce morphology transitions between the dense branching morphology and dendritic growth. We found that the effects of rf-treatments can last for a long time ͑hours͒. In addition, detailed studies using electron microscopy observations reveal that the effects span on all scales, from the micrometer-scale organization to the self-organization of the macroscopic pattern. We propose that these changes of patterning on all scales resulted from singular effects of gas-filled submicrometer bubbles or nanobubbles, which are generated by the rf-irradiation. The idea is that hydration shells around the nanobubbles induce water ordering that acts as a new singular perturbation mechanism in the solution. The latter is in addition to the well studied microscale singular perturbation mechanisms in the deposit ͑surface tension and attachment kinetics͒. We also studied electrochemical deposition in zinc sulfate solutions prepared from water that is doped with nanoparticles under rf-irradiation, and found similar and even amplified effects. Moreover, the nanoparticle doping stabilizes the effects-they are retained months after the solutions were prepared.

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