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In article number 2000705, Peng Zhang, Zhiyong Zhang, and co‐workers present a comprehensive review of nanomaterial transformation in the soil–plant system. Main knowledge gaps are highlighted, and future research needs are outlined so as to ensure sustainable nano‐enabled agricultural applications.
TaS2 nanolayers with reduced dimensionality show interesting physics, such as a gate‐tunable phase transition and enhanced superconductivity, among others. Here, a solution‐based strategy to fabricate a large‐area foil of hybrid TaS2/organic superlattice, where [TaS2] monolayers and organic molecules alternatively stack in atomic scale, is proposed. The [TaS2] layers are spatially isolated with remarkably...
Osteomyelitis is an inflammatory bone disease caused by infection microorganisms which leads to progressive bone destruction and loss. Drug resistance and inflammatory damage make it urgent to develop new dual‐functional therapies. Based on the powerful bactericidal effect of monocyte/macrophage cells by nature, a functional monocyte with programed anti‐inflammatory ability is promising for osteomyelitis...
2D transition‐metal carbides and nitrides, named MXenes, are promising materials for energy storage, but suffer from aggregation and restacking of the 2D nanosheets, which limits their electrochemical performance. In order to overcome this problem and realize the full potential of MXene nanosheets, a 3D MXene foam with developed porous structure is established via a simple sulfur‐template method,...
In article number 1904293, Bin Xu and co‐workers prepare a flexible and freestanding 3D porous MXene foam by a simple sulfur‐template method, which enhances the electrochemical performance when directly used as anode in lithium‐ion batteries, by facilitating the electron/Li+ transfer and offering massive active sites for lithium storage.
2D layers of metal dichalcogenides are of considerable interest for high‐performance electronic devices for their unique electronic properties and atomically thin geometry. 2D SnS2 nanosheets with a bandgap of ≈2.6 eV have been attracting intensive attention as one potential candidate for modern electrocatalysis, electronic, and/or optoelectronic fields. However, the controllable growth of large‐size...
The large‐scale commercial application of lithium–oxygen batteries (LOBs) is overwhelmed by the sluggish kinetics of oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) associated with insoluble and insulated Li2O2. Herein, an elaborate design on a highly catalytic LOBs cathode constructed by N‐doped carbon nanotubes (CNT) with in situ encapsulated Co2P and Ru nanoparticles is reported...
In article number 1900001, Chengxiang Wang, Longwei Yin, and co‐workers report a green protocol for in situ encapsulating Co2P and Ru nanoparticles into N‐doped graphitic carbon nanotubes as a Li–O2 battery cathode. The homogeneously dispersed Co2P and Ru catalysts can synergistically induce the formation of large Li2O2 nanosheets coating layer with poorly crystallized and quasi‐amorphous structure...
Carbon dots (CDs) have tremendous potential applications in bioimaging, biomedicine, and optoelectronics. By far, it is still difficult to produce photoluminescence (PL) tunable CDs with high quantum yield (QY) across the entire visible spectrum and narrow the emission peak widths of CDs close to those of typical quantum dots. In this work, a series of CDs with tunable emission from 443 to 745 nm,...
In this paper, the development of organic field‐effect transistor (OFET) memory device based on isolated and ordered nanostructures (NSs) arrays of wide‐bandgap (WBG) small‐molecule organic semiconductor material [2‐(9‐(4‐(octyloxy)phenyl)‐9H‐fluoren‐2‐yl)thiophene]3 (WG3) is reported. The WG3 NSs are prepared from phase separation by spin‐coating blend solutions of WG3/trimethylolpropane (TMP), and...
A series of carbon dots/NiCo2O4 composites with various morphologies are prepared and tested for supercapacitors. These samples have good electrical conductivities and efficient ions transport paths, so they exhibit high specific capacitances, superior rate performances, and high cycling stabilities. The optimal composite for hybrid supercapacitor exhibits a high energy density up to 62.0 Wh kg−1...
The 2H phase and 1T phase coexisting in the same molybdenum disulfide (MoS2) nanosheets can influence the electronic properties of the materials. The 1T phase of MoS2 is introduced into the 2H‐MoS2 nanosheets by two‐step hydrothermal synthetic methods. Two types of nonvolatile memory effects, namely write‐once read‐many times memory and rewritable memory effect, are observed in the flexible memory...
This article describes a novel supramolecular assembly‐mediated strategy for the organization of Au nanoparticles (NPs) with different shapes (e.g., spheres, rods, and cubes) into large‐area, free‐standing 2D and 3D superlattices. This robust approach involves two major steps: (i) the organization of polymer‐tethered NPs within the assemblies of supramolecular comblike block copolymers (CBCPs), and...
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