Au-Ag alloy nanoporous nanotubes

Gu, Xiaohu; Xu, Liqiang; Tian, Fang; Ding, Yi

doi:10.1007/s12274-009-9038-3

Cited by 62 publications

(53 citation statements)

References 30 publications

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“…By combining with other synthesis or nanofabrication methods including polyol process, templated process, solid-state dewetting, and different nanolithography techniques, Au-Ag alloys can be formed in many specific forms, and after dealloying, the nanoporous gold can be obtained in the corresponding forms, including the forms of nanotubes [38], nanowires [39], nanoparticles [17,40,41], hollowed nanospheres [42], nanobowls [43], nanodisks [44,45], ordered array of nanoparticles and nanodisks [46][47][48].…”

Section: Fabrication Of Gold Nanosponges and Hybrid Nanospongesmentioning

confidence: 99%

Plasmonic nanosponges

Wang

Schaaf

2018

Advances in Physics: X

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Gold nanosponges, or nanoporous gold nanoparticles, possess a percolated nanoporous structure over the entire nanoparticles. The optical and plasmonic properties of gold nanosponges and its related hybrid nanosponges are very fascinating due to the unique structural feature, and are controllable and tuneable in a large scope by changing the structural parameters like pore/ligament size, porosity, particle size, particles form, and hybrid structure. The nanosponges show the strong polarization dependence and multiple resonances behavior. Besides, the nanosponges exhibit a significantly higher local field enhancement than the solid nanoparticles. Strong nonlinear optical properties are confirmed by their high-order photoemission behavior, whereby long-lived plasmon modes are also clearly observed. All this is very important and relevant for the applications in enhanced Raman scattering, fluorescence manipulation, sensing, and nonlinear photonics.

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Section: Fabrication Of Gold Nanosponges and Hybrid Nanospongesmentioning

confidence: 99%

Plasmonic nanosponges

Wang

Schaaf

2018

Advances in Physics: X

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“…An alternate strategy for the preparation of nanoporous nanowires that does not involve electrodeposition entails the deposition of gold on a silver nanowire formed via a polyol process. The Au:Ag alloy is formed when the surface gold atoms interdiffuse with the underlying silver atoms at an elevated temperature [57].…”

Section: Alloy Preparationmentioning

confidence: 99%

Nanoporous Gold Electrodes and Their Applications in Analytical Chemistry

Collinson

2013

ISRN Analytical Chemistry

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Nanoporous gold prepared by dealloying Au:Ag alloys has recently become an attractive material in the field of analytical chemistry. This conductive material has an open, 3D porous framework consisting of nanosized pores and ligaments with surface areas that are 10s to 100s of times larger than planar gold of an equivalent geometric area. The high surface area coupled with an open pore network makes nanoporous gold an ideal support for the development of chemical sensors. Important attributes include conductivity, high surface area, ease of preparation and modification, tunable pore size, and a bicontinuous open pore network. In this paper, the fabrication, characterization, and applications of nanoporous gold in chemical sensing are reviewed specifically as they relate to the development of immunosensors, enzyme-based biosensors, DNA sensors, Raman sensors, and small molecule sensors.

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“…Nanopores developed only during delithiation, involving the aggregation of vacancies produced by lithium extraction, similar to the formation of porous metals in dealloying. Shui et al Similarly, Gu et al 87,88 also reported a kind of wellde¯ned 1D Ag-Au alloy nanotubes. In their work, a three-step nanocrystal growth and structure-tailoring process was involved.…”

Section: Other Nontemplate-assisted Methodsmentioning

confidence: 94%

Synthesis and Applications of One-Dimensional Porous Nanowire Arrays: A Review

Wang

2015

NANO

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In recent years, particular attention has been drawn to one-dimensional (1D) porous nanowires due to their high surface-to-volume ratios as well as the as-revealed excellent performance in varieties of applications. This review begins with a wide introduction to the as-reported various preparation methods for the typical 1D porous nanowires mainly consisting of template-free method (i.e., chemical etching, chemical vapor deposition, hydrothermal, electrospinning, gassolid reaction, etc.) and template-assisted method (i.e., using hard template and soft template, respectively). Based on the classi¯cation of design and preparation strategies, the as-evolved various nonmetallic and metallic 1D nanoporous materials with varied microstructural features have been highlighted, followed by the corresponding description and discussion on their typical applications in catalysis, sensors, rechargeable batteries, solar cells, super-capacitors, water treatment, random lasers and so forth.

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Au-Ag alloy nanoporous nanotubes

Cited by 62 publications

References 30 publications

Plasmonic nanosponges

Plasmonic nanosponges

Nanoporous Gold Electrodes and Their Applications in Analytical Chemistry

Synthesis and Applications of One-Dimensional Porous Nanowire Arrays: A Review

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