Influence of Electrostatic Forces on the Growth of One‐Dimensional Nanostructures

Cross, Michael; Varhue, W. J.

doi:10.1155/2012/105782

Cited by 4 publications

(2 citation statements)

References 27 publications

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“…The nanomaterial coated electrode surface is similar to the RuO 2 nanorods coated material whose SEM image was shown in Figure 1(a) [14]. The RuO 2 material is an electrical conductor and can be treated electrically as part of the electrode [15]. As stated above the increase in resulting interfacial area has been measured in previous experiments to be on the order of 10X greater [3].…”

Section: Electrolysis Of Dilute Aqueous Solutions Of H 2 Somentioning

confidence: 65%

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Effect of Wetting on the Ability of Nanomaterials to Act as Effective Catalysts

Cross¹,

Varhue²,

McDevitt³

et al. 2016

ACES

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The ability of some nanostructured materials to perform as effective heterogeneous catalysts is potentially hindered by the failure of the liquid reactant to effectively wet the solid catalyst surface. In this work, two different chemical reactions, each involving a change of phase from liquid to gas on a solid catalyst surface, are investigated. The first reaction is the catalyzed decomposition of a H 2 O 2 monopropellant within a micro-chemical reactor chamber, decorated with RuO 2 nanorods (NRs). The second reaction involves the electrolysis of dilute aqueous solutions of H 2 SO 4 performed with the cathode electrode coated with different densities and sizes of RuO 2 NRs. In the catalyzed H 2 O 2 decomposition, the reaction rate is observed to decrease with increasing catalyst surface density because of a failure of the liquid to wet on the catalyst surface. In the electrolysis experiment, however, the reaction rate increased in proportion to the surface density of RuO 2 NRs. In this case, the electrical bias applied to drive the electrolysis reaction also causes an electrostatic force of attraction between the fluid and the NR coated surface, and thus assures effective wetting.

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Section: Electrolysis Of Dilute Aqueous Solutions Of H 2 Somentioning

confidence: 65%

“…The RuO 2 material is an electrical conductor and can be treated electrically as shorted to the starting substrate surface [15]. The increase in the resulting material's interfacial surface area has been measured in previous experiments in our lab to be up to a factor of 10 greater than the original uncoated surface [3].…”

Section: Experimental Methodologymentioning

confidence: 74%