Functionalization of hollow nanoparticles for nanoreactor applications

Lee, Ji‐Hwan; Kim, Soo Min; Lee, In Su

doi:10.1016/j.nantod.2014.09.003

Cited by 160 publications

(120 citation statements)

References 254 publications

Supporting

Mentioning

119

Contrasting

Order By: Relevance

“…In particular, AuNPs functionalized with thiolated oligonucleotides are extensively used in DNA nanotechnology, since they can be easily attached to a DNA strand and furthermore linked to the DNA structure via sequence-complementarity. In addition, there exists a wide variety of other functionalized nanoparticles, such as thiol-PEG-coated spherical gold nanoparticles [56] and Au rods [57], alkylamine-stabilized platinum nanoparticles [58], benzyl methacrylate (BzMA) hollow Au@SiO 2 particles [59], oligo-functionalized Au-triangles [60], silica-coated silver nanoparticles [61] and AgNPs/graphene composition functionalized with streptavidin [62], that can be utilized in a wide range of applications, for example in energy storage materials and catalysis [63,64]. …”

Section: Structural Dna Nanotechnologymentioning

confidence: 99%

Metallic Nanostructures Based on DNA Nanoshapes

et al. 2016

View full text Add to dashboard Cite

Metallic nanostructures have inspired extensive research over several decades, particularly within the field of nanoelectronics and increasingly in plasmonics. Due to the limitations of conventional lithography methods, the development of bottom-up fabricated metallic nanostructures has become more and more in demand. The remarkable development of DNA-based nanostructures has provided many successful methods and realizations for these needs, such as chemical DNA metallization via seeding or ionization, as well as DNA-guided lithography and casting of metallic nanoparticles by DNA molds. These methods offer high resolution, versatility and throughput and could enable the fabrication of arbitrarily-shaped structures with a 10-nm feature size, thus bringing novel applications into view. In this review, we cover the evolution of DNA-based metallic nanostructures, starting from the metallized double-stranded DNA for electronics and progress to sophisticated plasmonic structures based on DNA origami objects.

show abstract

Section: Structural Dna Nanotechnologymentioning

confidence: 99%

Metallic Nanostructures Based on DNA Nanoshapes

et al. 2016

View full text Add to dashboard Cite

show abstract

“…Nanoscale hollow structures exhibit unique physical and chemical properties compared to their solid counterparts, enabling them to be a promising class of building blocks in applications such as photonic crystals, sensing devices, batteries, supercapacitors, drug‐delivery carriers, nano‐/microreactors with confined volumes, and high‐performance catalysts . A rapid progress in the development of synthesis methods has been witnessed in the recent decades, resulting in the availability of a wide range of hollow nanostructures with varying shapes and compositions.…”

Section: Introductionmentioning

confidence: 99%

In Situ Techniques for Probing Kinetics and Mechanism of Hollowing Nanostructures through Direct Chemical Transformations

Sun

2018

Small Methods

View full text Add to dashboard Cite

Chemical transformation of nanostructures into hollow ones becomes important in the synthesis of materials with unique properties for applications ranging from sensing to energy storage, to high‐performance catalysis. The nanoscale Kirkendall effect and galvanic replacement represent two typical mechanisms responsible for hollowing nanostructures. These two mechanisms occur either independently or simultaneously to form hollow nanostructures with appropriate geometries and desirable properties. Precisely distinguishing the hollowing mechanism and kinetics involved in a chemical transformation relies on in situ characterization methods including in situ electron microscopy, in situ optical spectroscopy, and a suite of in situ synchrotron X‐ray techniques (e.g., imaging, scattering, and X‐ray absorption fine structure spectroscopy). Here, the two typical hollowing mechanisms and the in situ characterization extensively explored in recent years are summarized, providing a timely overview of the promise of in situ methods in studying nanoparticle evolution under real reaction conditions.

show abstract

“…In the development of supported catalysts, the carriers or supports play a critical role, as they are generally required to immobilize the active species, improve the structural stability, and enhance the charge‐transport capabilities of composite catalysts . Among the various materials used as catalyst carriers, carbon materials have attracted significant attention for scientific and industrial applications owing to their chemical inertness (resistance to both acidic and basic environments), highly developed porosities, large surface areas, and flexible surface chemistry .…”

Section: Introductionmentioning

confidence: 99%

Smart Design of Small Pd Nanoparticles Confined in Hollow Carbon Nanospheres with Large Center‐Radial Mesopores

Zhao

et al. 2017

Eur J Inorg Chem

View full text Add to dashboard Cite

Although considerable progress has been made with carbon‐based heterogeneous nanocatalysts, great effort is still needed to regulate their structural parameters to further improve their catalytic activities and stabilities. Herein, we have successfully designed and synthesized new composite nanocatalysts composed of porous hollow carbon nanospheres (PHCNs) containing many small Pd nanoparticles (NPs) on their inner surfaces (PHCNs@Pd NPs). Notably, the PHCNs have disordered micropores and large center‐radial mesopores in the shell and craterlike inner surface, and a high density of small Pd NPs are partially confined on the inner surfaces of the PHCNs. Dendrimer‐like mesoporous silica nanospheres (DMSNs) as hard templates play a critical role in the formation of these unique structures. The resulting PHCNs@Pd NP catalyst exhibits high catalytic activity and selectivity as well as good recyclability in the catalytic oxidation of benzyl alcohol to benzaldehyde, and this catalytic performance is attributed to the unique structure of the support coupled with ultradispersed Pd NPs. Moreover, this synthesis strategy may provide some inspiration for the synthesis of advanced composites with complicated nanostructures for various applications.

show abstract

Functionalization of hollow nanoparticles for nanoreactor applications

Cited by 160 publications

References 254 publications

Metallic Nanostructures Based on DNA Nanoshapes

Metallic Nanostructures Based on DNA Nanoshapes

In Situ Techniques for Probing Kinetics and Mechanism of Hollowing Nanostructures through Direct Chemical Transformations

Smart Design of Small Pd Nanoparticles Confined in Hollow Carbon Nanospheres with Large Center‐Radial Mesopores

Contact Info

Product

Resources

About