Silica‐Coated Metal Nanoparticles

Liu, Shuhua; Han, Ming‐Yong

doi:10.1002/asia.200900228

Cited by 261 publications

(108 citation statements)

References 88 publications

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“…It is worthwhile to emphasize that the reproducibility of silica coating using Stöber method depends on several synthesis parameters like pH, temperature, and chemical purity [76][77][78], and in particular, for getting a thin silica shell in a controlled fashion, a modified Stöber method has to be often used [73,79]. In this approach, citrate capping ligands of the Au NPs were replaced by silane linker molecules (typically aminosilanes or mercaptosilanes), which then act as excellent reaction sites for the silica growth [80].…”

Section: Core-shell Nanostructuresmentioning

confidence: 99%

Recent advancements in plasmon-enhanced promising third-generation solar cells

Gangadharan

Liu

et al. 2016

Nanophotonics

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Abstract:The unique optical properties possessed by plasmonic noble metal nanostructures in consequence of localized surface plasmon resonance (LSPR) are useful in diverse applications like photovoltaics, sensing, nonlinear optics, hydrogen generation, and photocatalytic pollutant degradation. The incorporation of plasmonic metal nanostructures into solar cells provides enhancement in light absorption and scattering cross-section (via LSPR), tunability of light absorption profile especially in the visible region of the solar spectrum, and more efficient charge carrier separation, hence maximizing the photovoltaic efficiency. This review discusses about the recent development of different plasmonic metal nanostructures, mainly based on Au or Ag, and their applications in promising third-generation solar cells such as dye-sensitized solar cells, quantum dot-based solar cells, and perovskite solar cells.

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Section: Core-shell Nanostructuresmentioning

confidence: 99%

Recent advancements in plasmon-enhanced promising third-generation solar cells

Gangadharan

Liu

et al. 2016

Nanophotonics

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“…The yolk-shell nanoparticles have two parts-the metal cores and the shell layers-and thus the syntheses involve the formation of hollow shells in the presence of the metal cores [25]. Synthetic methods for yolk-shell nanoparticles can be divided into two types, manipulation of the core and manipulation of the shell.…”

Section: Synthesis Of Au@sio 2 Yolk-shell Nanostructure With Variablementioning

confidence: 99%

Metal@Silica yolk-shell nanostructures as versatile bifunctional nanocatalysts

2010

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Recent developments in nanochemistry offer precise morphology control of nanomaterials, which has significant impacts in the field of heterogeneous catalysis. Rational design of bifunctional catalysts can influence various aspects of catalytic properties. In this review, a new class of bifunctional catalysts with a metal@silica yolk-shell nanostructure is introduced. This structure has many advantages as a heterogeneous catalyst since it ensures a homogeneous environment around each metal core, and particle sintering is effectively eliminated during high temperature reactions. The catalysts exhibit high activity and recyclability in gas-and solution-phase reactions. It is anticipated that appropriate selection of bifunctional components and optimal structural control will significantly further enhance the catalytic properties, and enable target reaction-oriented development of new catalysts.

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“…Great efforts have been made to design metal@oxide core-shell structures [49,[247][248][249][250][251][252][253]. However, only limited attention has been paid to the use of such core-shell structures [252,[254][255][256][257][258][259][260][261] or their supported versions [262][263][264] in the fabrication of new catalysts [265,266].…”

Section: Dispersion Of Au@oxide Core-shell Structures On a Supportmentioning

confidence: 99%

Development of novel supported gold catalysts: A materials perspective

2010

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Since Haruta et al. discovered that small gold nanoparticles finely dispersed on certain metal oxide supports can exhibit surprisingly high activity in CO oxidation below room temperature, heterogeneous catalysis by supported gold nanoparticles has attracted tremendous attention. The majority of publications deal with the preparation and characterization of conventional gold catalysts (e.g., Au/TiO 2 ), the use of gold catalysts in various catalytic reactions, as well as elucidation of the nature of the active sites and reaction mechanisms. In this overview, we highlight the development of novel supported gold catalysts from a materials perspective. Examples, mostly from those reported by our group, are given concerning the development of simple gold catalysts with single metal-support interfaces and heterostructured gold catalysts with complicated interfacial structures. Catalysts in the first category include active Au/SiO 2 and Au/metal phosphate catalysts, and those in the second category include catalysts prepared by pre-modification of supports before loading gold, by post-modification of supported gold catalysts, or by simultaneous dispersion of gold and an inorganic component onto a support. CO oxidation has generally been employed as a probe reaction to screen the activities of these catalysts. These novel gold catalysts not only provide possibilities for applied catalysis, but also furnish grounds for fundamental research.

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Silica‐Coated Metal Nanoparticles

Cited by 261 publications

References 88 publications

Recent advancements in plasmon-enhanced promising third-generation solar cells

Recent advancements in plasmon-enhanced promising third-generation solar cells

Metal@Silica yolk-shell nanostructures as versatile bifunctional nanocatalysts

Development of novel supported gold catalysts: A materials perspective

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