Triangular Ag/Pd nanoplates with sawtooth edges: Displacement synthesis and optical and catalytic properties

Lee, Chien‐Liang; Tseng, Chun-Ming; Wu, Rong-Bing

doi:10.1016/j.elecom.2008.12.055

Cited by 8 publications

(3 citation statements)

References 15 publications

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“…SGD can be used to synthesize a variety of functional nanomaterials that cannot necessarily be produced by other methods with examples such as Pt nanotubes from Ag nanowires or structures/compositions such as bimetallic ,,− or trimetallic materials. , It also has the potential to create high surface area porous nanostructures, − thrift high-cost materials, for example, by using a Ni nanoparticle template to deposit an ultrathin layer of Pt/Au, and the ability to tune structures through the use of surfactants, metal ion size, crystal structure, or metal ion valency . It is thus possible to synthesize shape-controlled nanomaterials by SGD reactions with a degree of compositional control that cannot be otherwise obtained.…”

Section: Introductionmentioning

confidence: 99%

“…Experimental ,,− ,,− and theoretical studies have been conducted to elucidate the mechanism of SGD, often by displacing Ag templates with Au as a model system. The displacement of Ag nanowires by HAuCl 4 was studied using in situ transmission X-ray microscopy (TXM), revealing that oxidation of Ag initially occurs at sites with high surface energy facets .…”

Section: Introductionmentioning

confidence: 99%

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Mechanistic Study of Shape-Anisotropic Nanomaterials Synthesized via Spontaneous Galvanic Displacement

Strand¹,

Leong

Tassone

et al. 2016

J. Phys. Chem. C

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Among the broad portfolio of preparations for nanoscale materials, spontaneous galvanic displacement (SGD) is emerging as an important technology because it is capable of creating functional nanomaterials that cannot be obtained through other routes and may be used to thrift precious metals used in a broad range of applications including catalysis. With advances resulting from increased understanding of the SGD process, materials that significantly improve efficiency and potentially enable widespread adoption of next generation technologies can be synthesized. In this work, PtAg nanotubes synthesized via displacement of Ag nanowires by Pt were used as a model system to elucidate the fundamental mechanisms of SGD. Characterization by X-ray diffraction (XRD), small-angle X-ray scattering (SAXS), and atom probe tomography (APT) indicates nanotubes are formed as Ag is oxidized first from the surface and then from the center of the nanowire, with Pt deposition forming a rough, heterogeneous surface on the PtAg nanotube.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Mechanistic Study of Shape-Anisotropic Nanomaterials Synthesized via Spontaneous Galvanic Displacement

Strand¹,

Leong

Tassone

et al. 2016

J. Phys. Chem. C

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“…In our previous study, we reported the effect of 2,2 -bipyridyl on active Ag nanoparticles for catalyzing the ECD process. 8 Among the studies on ECD catalysts, [9][10][11] the compare of activity relative to the use of catalytic amount on deposition rate has been used, but studies on the activity in terms of the electrochemical surface area (ESA) of the used catalyst available as the real surface area in electrochemistry are very few. The ESA is an essential parameter to compare the activities of different electrochemical catalysts.…”

mentioning

confidence: 99%

Activity on Electrochemical Surface Area: Silver Nanoplates as New Catalysts for Electroless Copper Deposition

Chen

Yang

Chen

et al. 2012

J. Electrochem. Soc.

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Electrochemical surface areas (ESAs) were used to estimate the specific activities of different-sized Ag nanoplates (NPLs), which were used as novel catalysts for electroless copper deposition (ECD). Based on the consideration of ESAs and deposition kinetics measured using an electrochemical quartz crystal microbalance, the mean specific activities of NPLs with sizes of 74 nm, 117 nm, and 162 nm were determined to be 0.107, 0.250, and 1.017 mg • cm −2 , respectively. The largest NPLs showed the highest activity. Simultaneously, in the Tafel plot normalized to the ESA, the specific current density corresponding to 74 nm < 117 nm < 162 nm NPLs for formaldehyde oxidation in the high overpotential region was determined. This anodic reaction activated with various NPLs could thus be the rate-determining step in ECD. Additionally, an untypical open circuit potential curve containing two mixed potentials for two period depositions-Cu deposition on Ag NPLs and Cu on the deposited Cu layer-was observed. In the intended application, conductive Cu patterns on a flexible polyimide film using Ag NPL ink of 2.5 wt% solid content were successfully fabricated by inkjet printing combined with catalyzed ECD.

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Bimetallic Nanoplates and Nanosheets

Dong

Yang

Hou

2018

Bimetallic Nanostructures

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Triangular Ag/Pd nanoplates with sawtooth edges: Displacement synthesis and optical and catalytic properties

Cited by 8 publications

References 15 publications

Mechanistic Study of Shape-Anisotropic Nanomaterials Synthesized via Spontaneous Galvanic Displacement

Mechanistic Study of Shape-Anisotropic Nanomaterials Synthesized via Spontaneous Galvanic Displacement

Activity on Electrochemical Surface Area: Silver Nanoplates as New Catalysts for Electroless Copper Deposition

Bimetallic Nanoplates and Nanosheets

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