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253 Result(s)
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Article
Open AccessGrowth of anisotropic platinum nanostructures catalyzed by gold seed nanoparticles
This paper reports an effective method for the synthesis of platinum nanostructures with anisotropic morphologies by decomposition of platinum dichloride in oleylamine at intermediate temperatures catalyzed by...
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Open AccessTheoretical and experimental studies of Schottky diodes that use aligned arrays of single-walled carbon nanotubes
We present theoretical and experimental studies of Schottky diodes that use aligned arrays of single-walled carbon nanotubes. A simple physical model, taking into account the basic physics of current rectifica...
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A facile one-step synthesis of TiO2/graphene composites for photodegradation of methyl orange
TiO2/graphene composite photocatalysts have been prepared by a simple liquid phase deposition method using titanium tetrafluoride and electron beam (EB) irradiation-pretreated graphene as the raw materials. The p...
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Synthesis of protein nano-conjugates for cancer therapy
A eukaryotic cell contains thousands of proteins that regulate its cellular function; delivering functional proteins into cells to rectify cellular functions holds great promise for treatment of various diseas...
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Direct imaging of molecular orbitals of metal phthalocyanines on metal surfaces with an O2-functionalized tip of a scanning tunneling microscope
High-resolution scanning tunneling microscope images of iron phthalocyanine and zinc phthalocyanine molecules on Au(111) have been obtained using a functionalized tip of a scanning tunneling microscope (STM), ...
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Template-directed assembly of pentacene molecules on epitaxial graphene on Ru(0001)
The template-directed assembly of planar pentacene molecules on epitaxial graphene grown on Ru(0001) (G/Ru) has been investigated by means of low-temperature scanning tunneling microscopy (STM) and density fun...
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Article
Facile carbonaceous microsphere templated synthesis of Co3O4 hollow spheres and their electrochemical performance in supercapacitors
Co3O4 hollow spheres assembled from nanoparticles have been successfully synthesized by a one-pot hydrothermal carbonization and calcination method. In this method, carbon spheres obtained through hydrothermal ca...
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Reduced graphene oxide with a highly restored π-conjugated structure for inkjet printing and its use in all-carbon transistors
An inkjet-printed graphene film is of great importance for next-generation flexible, low cost and high performance electronic devices. However, due to the limitation of the inkjet printing process, the electri...
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Construction of two-dimensional hydrogen clusters on Au(111) directed by phthalocyanine molecules
Low-dimensional H2 aggregates have been successfully fabricated on Au(111) surfaces and investigated by means of low temperature scanning tunneling microscopy. We use manganese phthalocyanine (MnPc) molecules anc...
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Article
Transparent paper-based triboelectric nanogenerator as a page mark and anti-theft sensor
The triboelectric nanogenerator (TENG), based on the well-known triboelectric effect and electrostatic induction effect, has been proven to be a simple, cost effective approach for self-powered systems to conv...
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Chemically exfoliated metallic MoS2 nanosheets: A promising supporting co-catalyst for enhancing the photocatalytic performance of TiO2 nanocrystals
Electron-hole separation is a critical step to achieving efficient photocatalysis, towards which use of co-catalysts has become a widely used strategy. Despite the tremendous efforts and demonstrated functions...
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Interconnected 1D Co3O4 nanowires on reduced graphene oxide for enzymeless H2O2 detection
Enzymeless hydrogen peroxide (H2O2) detection with high sensitivity and excellent selectivity is desirable for clinical diagnosis. Herein, one-dimensional Co3O4 nanowires have been successfully constructed on red...
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Article
Templated synthesis of TiO2 nanotube macrostructures and their photocatalytic properties
Controlled synthesis of hierarchically assembled titanium dioxide (TiO2) nanostructures is important for practical applications in environmental purification and solar energy conversion. We present here the fabri...
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Article
Gold nanoparticle/ZnO nanorod hybrids for enhanced reactive oxygen species generation and photodynamic therapy
Gold nanoparticle (Au NP)@ZnO nanorod (NR) (Au@ZnO) hybrids with various ZnO:Au molar ratios were developed to enhance the generation of reactive oxygen species (ROS) in photodynamic therapy (PDT) applications...
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Article
Etching approach to hybrid structures of PtPd nanocages and graphene for efficient oxygen reduction reaction catalysts
Cathodic oxygen reduction reaction (ORR) is a highly important electrochemical reaction in renewable-energy technologies. In general, the surface area, exposed facets and electrical conductivity of catalysts a...
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Article
Group 14 element-based non-centrosymmetric quantum spin Hall insulators with large bulk gap
To date, a number of two-dimensional (2D) topological insulators (TIs) have been realized in Group 14 elemental honeycomb lattices, but all are inversionsymmetric. Here, based on first-principles calculations,...
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Article
Prediction of a large-gap quantum-spin-Hall insulator: Diamond-like GaBi bilayer
A quantum-spin-Hall (QSH) state was achieved experimentally, albeit at a low critical temperature because of the narrow band gap of the bulk material. Twodimensional topological insulators are critically impor...
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Direct writing of graphene patterns and devices on graphene oxide films by inkjet reduction
Direct writing of graphene patterns and devices may significantly facilitate the application of graphene-based flexible electronics. In terms of scalability and cost efficiency, inkjet printing is very competi...
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Article
Organic–inorganic bismuth (III)-based material: A lead-free, air-stable and solution-processable light-absorber beyond organolead perovskites
Methylammonium bismuth (III) iodide single crystals and films have been developed and investigated. We have further presented the first demonstration of using this organic–inorganic bismuth-based material to r...
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A highly active oxygen evolution electrocatalyst: Ultrathin CoNi double hydroxide/CoO nanosheets synthesized via interface-directed assembly
A cost-efficient and stable oxygen evolution electrocatalyst is essential for improving energy storage and conversion efficiencies. Herein, 2D nanosheets with randomly cross-linked CoNi layered double hydroxid...