Journal ArticleDOI
Cluster-Based Self-Assembly: Reversible Formation of Polyoxometalate Nanocones and Nanotubes
Amjad Nisar,Jing Zhuang,Xun Wang +2 more
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TLDR
In this paper, the surface of POM clusters was modified by organic surfactant through single-phase approach, by carefully controlling and varying clusters surrounding environment, all assemblies were found to reverse into each other.Abstract:
Reversible self-assembly of Keggin structure polyoxometalate (POM) nanoclusters into nanodisks, nanocones, and nanotubes is described. The surface of POM clusters was modified by organic surfactant through single-phase approach. By carefully controlling and varying clusters surrounding environment, all assemblies were found to reverse into each other. The different assemblies and their evolutions from each other were studied by scanning electron microscopy and optical microscopy while the inner structure was investigated by transmission electron microscopy. The formation and transformation of different assembly shapes into each other is interpreted by considering electrostatic binding of surfactant molecules with the POM cluster, number of surfactant molecules attached, and particular surrounding environment arising from the optimized mixed solvent.read more
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Ionic Complexes of Metal Oxide Clusters for Versatile Self-Assemblies
TL;DR: The inspiration from the construction of ionic complexation and self-assembly in this Account provides vivid profiles for the design of hybrid materials involving nanoclusters and/or nanoparticles with rich potentials in addition to polyoxometalate chemistry.
Journal ArticleDOI
Construction of Amphiphilic Polyoxometalate Mesostructures as a Highly Efficient Desulfurization Catalyst
Amjad Nisar,Jing Zhuang,Xun Wang +2 more
TL;DR: Inspired by conventional amphiphiles, researchers have also increasingly been considering polyoxometalates (POMs), which is a class of inorganic clusters with rich structural versatility along with well-defined physical and chemical properties, to construct new amphiphilic structures and explore their potential applications.
Journal ArticleDOI
Smart self-assemblies based on a surfactant-encapsulated photoresponsive polyoxometalate complex
Yi Yan,Huanbing Wang,Bao Li,Guang-Feng Hou,Zhendong Yin,Lixin Wu,Vivian Wing-Wah Yam,Vivian Wing-Wah Yam +7 more
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Polyoxometalate Nanocone Nanoreactors: Magnetic Manipulation and Enhanced Catalytic Performance
TL;DR: The functionalization of nanocones with magnetite nanocrystals and their controlled manipulation in the reaction system are applied for the catalytic oxidation of sulfides in which they act as nanoreactors to provide enhanced efficiency, selectivity, and easier recovery under an external magnetic field.
Journal ArticleDOI
Aqueous synthesis of mesostructured BiVO4 quantum tubes with excellent dual response to visible light and temperature
TL;DR: In this article, a novel assembly-fusion strategy for the synthesis of mesostructured monoclinic BiVO4 quantum tubes with ultranarrow diameter of 5 nm, ultrathin wall thickness down to 1 nm and exposed {020} facets, via a convenient hydrothermal method at temperatures as low as 100 °C.
References
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Journal ArticleDOI
Polyoxometalate Chemistry: An Old Field with New Dimensions in Several Disciplines
Michael T. Pope,Achim Müller +1 more
TL;DR: Inorganic metal-oxygen cluster anions form a class of compounds that is unique in its topological and electronic versatility and is important in several disciplines, such as analytical and clinical chemistry, catalysis (including photocatalysis), biochemistry, and medicine (antitumoral, antiviral, and even anti-HIV activity) as mentioned in this paper.
Journal ArticleDOI
Fabrication of novel biomaterials through molecular self-assembly.
TL;DR: Two complementary strategies can be used in the fabrication of molecular biomaterials as discussed by the authors : chemical complementarity and structural compatibility, both of which confer the weak and noncovalent interactions that bind building blocks together during self-assembly.
Journal ArticleDOI
Self-Oriented Regular Arrays of Carbon Nanotubes and Their Field Emission Properties
Shou-Shan Fan,Michael Chapline,Nathan R. Franklin,Thomas W. Tombler,Alan M. Cassell,Hongjie Dai +5 more
TL;DR: The synthesis of massive arrays of monodispersed carbon nanotubes that are self-oriented on patterned porous silicon and plain silicon substrates is reported and the mechanisms of nanotube growth and self-orientation are elucidated.
Journal ArticleDOI
Catalysis by Heteropoly Acids and Multicomponent Polyoxometalates in Liquid-Phase Reactions
Journal ArticleDOI
Structural diversity in binary nanoparticle superlattices
Elena V. Shevchenko,Dmitri V. Talapin,Dmitri V. Talapin,Nicholas A. Kotov,Stephen O'Brien,Christopher B. Murray +5 more
TL;DR: It is demonstrated that electrical charges on sterically stabilized nanoparticles determine B NSL stoichiometry; additional contributions from entropic, van der Waals, steric and dipolar forces stabilize the variety of BNSL structures.