Electrochemical properties of atomic-scale metal wires

Xu, Bingqian; He, Huixin; Boussaad, S.; Tao, Nongjian

doi:10.1016/s0013-4686(03)00386-4

Cited by 23 publications

(27 citation statements)

References 39 publications

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“…A technique developed by Xu et al [137], in which the nanowires are fabricated electrochemically [138,139]. Recent TEM data have confirmed clearly that a metal wire with quantized conductance consists of a string of a few metal atoms [140,141].…”

Section: Nanowiresmentioning

confidence: 99%

Nanostructured Materials Synthesized Using Electrochemical Techniques

Oliveira

Freitas

Mattoso

et al. 2008

Nanostructured Materials in Electrochemistry

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The visualization and/or handling of atom clusters, or even individual atoms, has been achieved during the past 25 years. One of the most practical instruments for this purpose is the tunneling microscope, which was invented during the 1980s. On such a small scale, materials properties are not the same as those of a macroscopicsized substance. The first occasion on which a scientist proposed atom handling was in 1959, when Professor Richard Feynman [1], during a lecture at the California Institute Technology, suggested that in the near future engineers would be able to take atoms and place them exactly where they wanted to, without -of courseinfringing the laws of Nature. Today, Professor Feynmans lecture, which was entitled There is Plenty of Room at the Bottom, is considered a milestone of the current technological and scientific era.We can define nanoscience as the study of the phenomena and handling of structures on the atomic, molecular and macromolecular scale, where at least one dimension is significantly less than the others. And nanotechnology includes the design, characterization, and production of devices and systems on a nanometer scale. This definition of nanotechnology is wide-ranging, it is not a specific technology, all of the techniques based on physics, chemistry, biology, materials science and engineering -and/or using computers -leading to the development of materials and tools in such a way that the common point among them is the reduced dimension in which they operate. Among these applications are: increased storage and processing capacity for computers; the creation of new mechanisms for drug delivery; and the production of materials which are both lighter and more resistant than metals and plastics. Additional benefits of nanotechnology developments include energy saving, environmental protection, and the more efficient use of increasingly scarce raw materials.Today, these new investigations into material fabrication are focused mainly on nanostructured devices or, at least, microdevices. The most-often used technique for j117 Nanostructured Materials in Electrochemistry. Edited by Ali Eftekhari

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Section: Nanowiresmentioning

confidence: 99%

Nanostructured Materials Synthesized Using Electrochemical Techniques

Oliveira

Freitas

Mattoso

et al. 2008

Nanostructured Materials in Electrochemistry

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show abstract

“…On the other hand, this methodology can be used in situ for electrochemical experiments. In fact, it has been employed by Tao and co-workers to perform conductance measurements with Au nanowires under a variety of experimental electrochemical conditions (He et al, 2002;Xu et al, 2003b), including the properties of the nanojunction when molecules are inserted into it (Xu et al, 2003a;Xu & Tao, 2003). Efficient electrochemical methods for the generation of nanowires have also been developed.…”

Section: Introductionmentioning

confidence: 99%

Computational Tools to Study and Predict the Long-Term Stability of Nanowires.

Michoff¹,

Vélez²,

Dassie³

et al. 2010

Electrodeposited Nanowires and Their Applications

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“…In this context, metal nanowires and carbon nanotubes in contact with electrolyte solutions are a particularly interesting class of electrochemical systems, both from a theoretical and a practical point of view. Recently such interfaces have become the subject of experimental studies on the basis of electrochemical scanning probe techniques [1][2][3][4][5][6][7][8][9][10][11]. Thus, the adsorption of anions and organic molecules from electrolyte solutions at copper and gold nanowires was investigated by Tao et al [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

“…Using cyclic voltammetry the authors [3] studied redox properties of hemoglobin (Hb) immobilized onto the surface of CNT; the apparent heterogeneous electron transfer rate constant was estimated. It was concluded that the direct electron transfer rate of Hb greatly enhances after its immobilization onto the surface of CNT [10].…”

Section: Introductionmentioning

confidence: 99%