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Bioinspired hierarchical structures on the surface of vertical light‐emitting diodes (VLEDs) are fabricated by S.‐J. Park and co‐workers based on combining a self‐assembled dip‐coating process and nanopatterning transfer method using thermal release tape. These novel surfaces reduce the total internal reflection and grant additional antifouling abilities to VLEDs. On page 161, this provides a guideline...
Bioinspired hierarchical structures on the surface of vertical light‐emitting diodes (VLEDs) are demonstrated by combining a self‐assembled dip‐coating process and nanopatterning transfer method using thermal release tape. This versatile surface structure can efficiently reduce the total internal reflection and add functions, such as superhydrophobicity and high oleophobicity, to achieve an antifouling...
Heterostructured TiO2 nanorod@nanobowl (NR@NB) arrays consisting of rutile TiO2 nanorods grown on the inner surface of arrayed anatase TiO2 nanobowls are designed and fabricated as a new type of photoanodes for photoelectrochemical (PEC) water splitting. The unique heterostructures with a hierarchical architecture are readily fabricated by interfacial nanosphere lithography followed by hydrothermal...
Mesoporousintegrated TiO2 spheres composed of numerous orderly arranged nanocrystals with a reduced lattice–lattice interface connection, display an almost four times longer electron lifetime (350 ps) than the randomly aggregated nanoparticles (80 ps), and hence enhance the corresponding photocatalytic H2 and O2 generation.
A simple method to prepare metal‐organic framework (MOF) nanotubes is developed by employing polyoxometalates (POMs) as modulators. The local structure of the MOF nanotubes is investigated combining XANES and EXAFS studies. These nanotubes show both an excellent catalytic performance in the detoxification of sulfur compounds in O2 atmosphere and a remarkable cycling stability as the anode material...
Bone, as a mineralized composite of inorganic (mostly carbonated hydroxyapatite) and organic (mainly type I collagen) phases, possesses a unique combination of remarkable strength and toughness. Its excellent mechanical properties are related to its hierarchical structures and precise organization of the inorganic and organic phases at the nanoscale: Nanometer‐sized hydroxyapatite crystals periodically...
Graphene aerogels (GAs) anchoring hierarchical, mulberry‐like ZnO particles are fabricated in situ using a one‐step solvothermal reaction. The resulting composites can function as anodes in lithium ion batteries, where they exhibit a high capacity and cyclic stability. The reversible capacities obtained are 365, 320, and 230 mA h g−1 at current densities of 1, 2, and 10 A g−1. Their high reversible...
A highly stretchable superhydrophobic surface is prepared by Changyu Tang and co‐workers in article number 1602353, through a facile spray‐coating of nano‐carbon black/polybutadiene elastomeric composite on a rubber substrate. The hierarchical roughness of the resulting composite coating exhibits a self‐adaptive deformation behavior and enables the surface to maintain a superhydrophobic property (water...
With the rapid development of stretchable electronics, functional textiles, and flexible sensors, water‐proof protection materials are required to be built on various highly flexible substrates. However, maintaining the antiwetting of superhydrophobic surface under stretching is still a big challenge since the hierarchical structures at hybridized micro‐nanoscales are easily damaged following large...
A novel and simple strategy is developed to construct ultralight and 3D pure carbon nanotube (CNT) aerogels by the spontaneous expansion of superaligned CNT films soaked in a piranha (mixed H2SO4 and H2O2) solution, followed by cryodesiccation. The macroscopic CNT aerogels have an extremely low apparent density (0.12 mg cm−3), ultrahigh porosity (99.95%), high specific surface area (298 m2 g−1), and...
2D layered metal hydroxides (LMH) are promising materials for electrochemical energy conversion and storage. Compared with exfoliation of bulk layered materials, wet chemistry synthesis of 2D LMH materials under mild conditions still remains a big challenge. Here, an “MgO‐mediated strategy” for mass production of various 2D LMH nanosheets is presented by hydrolyzing MgO in metal salt aqueous solutions...
Layered lithium transition‐metal oxides, with large capacity and high discharge platform, are promising cathode materials for Li‐ion batteries. However, their high‐rate cycling stability still remains a large challenge. Herein, hierarchical LiNi1/3Co1/3Mn1/3O2 polyhedron assemblies are obtained through in situ chelation of transition metal ions (Ni2+, Co2+, and Mn2+) with amide groups uniformly distributed...
Rational design and controllable synthesis of nanostructured materials with unique microstructure and excellent electrochemical performance for energy storage are crucially desired. In this paper, a facile method is reported for general synthesis of hierarchically core–shell structured Ni3S2@NiMoO4 nanowires (NWs) as a binder‐free electrode for asymmetric supercapacitors. Due to the intimate contact...
Hierarchical metal nanostructures containing 1D nanobuilding blocks have stimulated great interest due to their abundant active sites for catalysis. Herein, hierarchical 4H/face‐centered cubic (fcc) Ru nanotubes (NTs) are synthesized by a hard template‐mediated method, in which 4H/fcc Au nanowires (NWs) serve as sacrificial templates which are then etched by copper ions (Cu2+) in dimethylformamide...
In article number 1801893, Sara Mahshid and co‐workers develop a nanostructured fluidic device for sensitive analysis of pathogenic bacteria based on a hierarchical nano/micro‐islands detection platform enabling direct, rapid, and quantifiable detection of bacteria. Performance of the integrated device in probe‐free optical detection of pathogenic bacteria such as Escherichia coli and optoimmunocapturing...
Efficient capture and rapid detection of pathogenic bacteria from body fluids lead to early diagnostics of bacterial infections and significantly enhance the survival rate. We propose a universal nano/microfluidic device integrated with a 3D nanostructured detection platform for sensitive and quantifiable detection of pathogenic bacteria. Surface characterization of the nanostructured detection platform...
Self‐powered charging systems in conjunction with renewable energy conversion and storage devices have attracted promising attention in recent years. In this work, a prolific approach to design a wind/solar‐powered rechargeable high‐energy density pouch‐type hybrid supercapacitor (HSC) is proposed. The pouch‐type HSC is fabricated by engineering nature‐inspired nanosliver (nano‐Ag) decorated Ni0.67...
In article 1805308, Jiajun Gu and co‐workers assemble nanosized metal and semiconductor building blocks with various sizes and shapes into hierarchical structures in centimeter size, by introducing steric hindrance to compensate for environmentally sensitive hydrogen‐bonds and electrostatic interaction.
Assembling nanosized building blocks into macroscopic 3D complex structures is challenging. Here, nanosized metal and semiconductor building blocks with a variety of sizes and shapes (spheres, stars, and rods) are successfully assembled into a broad range of hierarchical (nanometer to micrometer) assemblies of functional materials in centimeter size using butterfly wings as templates. This is achieved...
Self‐cleaning materials, which are inspired and derived from natural phenomena, have gained significant scientific and commercial interest in the past decades as they are energy‐ and labor‐saving and environmentally friendly. Several technologies are developed to obtain self‐cleaning materials. The combination of superhydrophobic and photocatalytic properties enables the efficient removal of solid...
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