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Photoelectricity‐Induced Artificial Synapses
A miniaturized diode with reversible switching state based on N‐n MoS2 homojunction uses a bandgap renormalization effect through the band alignment type regulated by both dielectric and polarization, controllably switched between type‐I and type‐II, which can be simulated as artificial synapse for sensing memory processing because of its rectification,...
The development of efficient metal‐free photocatalysts for the generation of reactive oxygen species (ROS) for sulfur mustard (HD) decontamination can play a vital role against the stockpiling of chemical warfare agents (CWAs). Herein, one novel concept is conceived by smartly choosing a specific ionic monomer and a donor tritopic aldehyde, which can trigger linker‐independent regioselective protonation/deprotonation...
Metal Clusters
In article number 2208287, Tokuhisa Kawawaki, Yuichi Negishi, and co‐workers establish a method to load ultrafine, monodisperse, metallic Pt nanoclusters on a visible‐light‐driven graphitic carbon photocatalyst, resulting in a significantly improved hydrogen‐evolution activity compared with that of a Pt‐cocatalyst loaded photocatalyst by the conventional method.
In order to overcome the limitations of supramolecular organic cages for their incomplete accessibility of active sites in the solid state and uneasy recyclability in liquid solution, herein a nitrogen‐rich organic cage is rationally linked into framework systems and four isoreticular covalent organic frameworks (COFs), that is, Cage‐TFB‐COF, Cage‐NTBA‐COF, Cage‐TFPB‐COF, and Cage‐TFPT‐COF, are successfully...
Oxygen doping is an effective strategy for constructing high‐performance carbon anodes in Na ion batteries; however, current oxygen‐doped carbons always exhibit low doping levels and high‐defect surfaces, resulting in limited capacity improvement and low initial Coulombic efficiency (ICE). Herein, a stainless steel‐assisted high‐energy ball milling is exploited to achieve high‐level oxygen doping...
Stabilized Pt Clusters
In article number 2300547, Yunqian Dai and co‐workers report that they effectively stabilize 2.6 nm‐Pt clusters against sintering over 800 °C on electrospun CeO2 nanofibers decorated by CeO2 nanocubes with thermodynamic and kinetic strategy. Such clusters show superior catalytic performance toward both the hydrogenation and oxidation reactions.
Layered Clay Minerals
In article number 2300842, Weimin Xie, Ying Chen, and Huaming Yang review the current applications of layered clay minerals (LCM) in cancer therapy. Except for being used as drug delivery carriers, it can also produce reactive oxygen species, hydroxyl radicals, as an embolic agent, promote immune effects, adhesive cancer cells to prevent metastasis and their own antitumor effects...
Magnesium‐ion batteries (MIBs) are emerging as potential next‐generation energy storage systems due to high security and high theoretical energy density. Nevertheless, the development of MIBs is limited by the lack of cathode materials with high specific capacity and cyclic stability. Currently, transition metal sulfides are considered as a promising class of cathode materials for advanced MIBs. Herein,...
Converting ubiquitous ambient low‐grade thermal energy into electricity is of great significance for tackling the fossil energy shortage and environmental crisis but poses a considerable challenge. Here, a novel thermal‐driven triboelectric nanogenerator (TD‐TENG) is developed, which utilizes a bimetallic beam with a bi‐stable dynamic feature to induce continuous mechanical oscillations, and the mechanical...
Portable Carbon Nanotube Biosensors
Mengmeng Xiao, Yuehua Ke, Zhi‐Yong Zhang, and co‐workers develop a multi‐functionalized carbon nanotube field effect transistor biosensor arrays with a portable data reading system for the on‐site single virus level detection of SARS‐CoV‐2. The biosensor arrays can detect SARS‐CoV‐2 virus antigens and the unamplified long chain RNAs simultaneously with a detection...
Single‐Atom Catalysts
An integrated structure of core‐shell carbon nanoboxes doped with single Fe atoms wrapped with self‐growing carbon nanotubes is designed to modify the polypropylene (PP) membrane (Fe@C‐CNT). Self‐growing carbon nanotubes and carbon nanowires can significantly shorten the electron transfer distance and improve the conductivity of the catalyst. In addition, this unique rational...
Efficient Perovskite Solar Modules
In article number 2301110, Sisi He, Longbin Qiu, and co‐workers design a controllable release and deposition of Ni2+ by adding amino‐alcohol ligands, which enhance the anti‐sedimentation of the precursor solution during chemical bath deposition and the uniformity of the deposited hole transport layer with large area. The authors fabricate highly reproducible and...
Polycyclic Aromatic Hydrocarbons
A pentagon‐heptagon‐embedded polycyclic aromatic hydrocarbon (PAH) consisting of B‐N heteroatoms (BN‐2) is synthesized in only two steps. Combining spectroscopic measurements and theoretical calculations, the excited‐state dynamics of the resultant BN‐doped PAHs are well‐investigated, demonstrating both prompt fluorescence and long‐lived delayed fluorescence components...
Polymeric Nanoparticles
In article number 2300801, Liang‐Yin Chu, Wei Wang, and co‐workers develop a spontaneous confined nanoemulsification strategy to facilely fabricate sub‐10 nm uniform polymeric nanoparticles by template synthesis of nanoemulsions. The strategy employs a self‐confined reaction with highly accumulated surfactants in chemically‐active droplets to achieve enhanced molecular‐level...
Pd Nanocatalysts
Ceria‐supported palladium nanoparticles exposed to carbon monoxide have been investigated by diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) measurements and density functional theory (DFT) calculations. The molecular vibrations of the CO adsorbates and related infrared intensities have been used as a marker for identifying the structure of the catalyst by comparing...
Electrochromic (EC) reflective displays offer great advantages in delivering information and providing visual data, but are limited in dark environments. Reflective/emissive dual‐modal displays capable of electrochemically‐induced color and fluorescence change simultaneously are highly desirable, especially possessing rapid response speed as well as long‐term durability. Herein, an electroactive fluorescent...
Enhanced second‐harmonic generation (SHG) responses are reported in monolayer transition metal dichalcogenides (e.g., MX2, M: Mo, W; X: S, Se) due to the broken symmetries. The 3R‐like stacked MX2 spiral structures possessing the similar broken inversion symmetry should present dramatically enhanced SHG responses, thus providing great flexibility in designing miniaturized on‐chip nonlinear optical...
Developing novel synthetic strategies to downsize metal‐organic frameworks (MOFs) from polydisperse crystals to monodisperse nanoparticles is of great importance for their potential bioapplications. In this work, a novel synthetic strategy termed gelothermal synthesis is proposed, in which coordination polymer gel is first prepared and followed by a thermal reaction to give the monodisperse MOF nanoparticles...
Flexible electronics have gained great attention in recent years owing to their promising applications in biomedicine, sustainable energy, human‐machine interaction, and toys for children. Paper mainly produced from cellulose fibers is attractive substrate for flexible electronics because it is biodegradable, foldable, tailorable, and light‐weight. Inspired by daily handwriting, the rapid prototyping...
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