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Highly emissive semiconductor nanocrystals, or so‐called quantum dots (QDs) possess a variety of applications from displays and biology labeling, to quantum communication and modern security. Though ensembles of QDs have already shown very high photoluminescent quantum yields (PLQYs) and have been widely utilized in current optoelectronic products, QDs that exhibit high absorption cross‐section, high...
Multi‐shelled hollow metal‐organic frameworks (MH‐MOFs) are highly promising as electrode materials due to their impressive surface area and efficient mass transfer capabilities. However, the fabrication of MH‐MOFs has remained a formidable challenge. In this study, two types of double‐shelled open hollow Prussian blue analogues, one with divalent iron (DHPBA‐Fe(II)) and the other with trivalent iron...
Rheumatoid arthritis (RA) is a chronic autoimmune disease commonly associated with the accumulation of hyperactive immune cells (HICs), particularly macrophages of pro‐inflammatory (M1) phenotype, accompanied by the elevated level of reactive oxygen species (ROS), decreased pH and O2 content in joint synovium. In this work, an immunomodulatory nanosystem (IMN) is developed for RA therapy by modulating...
Al–S battery (ASB) is a promising energy storage device, notable for its safety, crustal abundance, and high theoretical energy density. However, its development faces challenges due to slow reaction kinetics and poor reversibility. The creation of a multifunctional cathode material that can both adsorb polysulfides and accelerate their conversion is key to advancing ASB. Herein, a composite composed...
Synaptic devices that mimic biological synapses are considered as promising candidates for brain‐inspired devices, offering the functionalities in neuromorphic computing. However, modulation of emerging optoelectronic synaptic devices has rarely been reported. Herein, a semiconductive ternary hybrid heterostructure is prepared with a D‐D’‐A configuration by introducing polyoxometalate (POM) as an...
Benefiting from the admirable energy density (1086 Wh kg−1), overwhelming security, and low environmental impact, rechargeable zinc–air batteries (ZABs) are deemed to be attractive candidates for lithium‐ion batteries. The exploration of novel oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) bifunctional catalysts is the key to promoting the development of zinc–air batteries. Transitional...
Solar‐driven CO2 conversion into valuable fuels is a promising strategy to alleviate the energy and environmental issues. However, inefficient charge separation and transfer greatly limits the photocatalytic CO2 reduction efficiency. Herein, single‐atom Pt anchored on 3D hierarchical TiO2‐Ti3C2 with atomic‐scale interface engineering is successfully synthesized through an in situ transformation and...
Lightweight and impact‐resistant materials with self‐monitoring capability are highly desired for protective applications, but are challenging to be artificially fabricated. Herein, a scalable‐manufactured aramid nanofiber (ANF)‐based composite combining these key properties is presented. Inspired by the strengthening and toughening mechanisms relying on recoverable interfaces commonly existing in...
In the development of flexible organic field‐effect transistors (OFET), downsizing and reduction of the operating voltage are essential for achieving a high current density with a low operating power. Although the bias voltage of the OFETs can be reduced by a high‐k dielectric, achieving a threshold voltage close to zero remains a challenge. Moreover, the scaling down of OFETs demands the use of photolithography,...
Lithium–sulfur batteries are one of the most promising next‐generation energy storage systems. The efficient interconversion between sulfur/lithium polysulfides and lithium sulfide is a performance‐determining factor for lithium–sulfur batteries. Herein, a novel strategy to synthesize a unique tube‐in‐tube CNT‐wired sulfur‐deficient MoS2 nanostructure embedding cobalt atom clusters as an efficient...
Single‐atom catalysts (SAs) with the maximum atom utilization and breakthrough activities toward hydrogen evolution reaction (HER) have attracted considerable research interests. Uncovering the nature of single‐atom metal centers under operating electrochemical condition is highly significant for improving their catalytic performance, yet is poorly understood in most studies. Herein, Pt single atoms...
The viable Li metal anodes (LMAs) are still hampered by the safety concerns resulting from fast Li dendrite growth and huge volume expansion during cycling. Herein, carbon nanofiber matrix anchored with MgZnO nanoparticles (MgZnO/CNF) is developed as a flexible triple‐gradient host for long cycling LMAs. The superlithiophilic MgZnO nanoparticles significantly increase the wettability of CNF for fast...
In article number 2001992, Ying Yang and co‐workers design a triple‐gradient host for long cycling lithium metal anodes at ultrahigh current density. In the graphic, the wizard on a magic broom and the flying wild geese guided by color winds indicate the fast movement of rectified Li‐ion flux repeatedly plated/stripped on the host represented by the castle on the clouds.
Novel nitrogen doped (N‐doped) hollow beaded structural composite carbon nanofibers are successfully applied for lithium‐ion batteries (LIBs) and sodium‐ion batteries (SIBs). Tungsten disulfide (WS2) nanosheets are confined, through synergistic anchoring, on the surface and inside of hollow beaded carbon nanofibers (HB CNFs) via a hydrothermal reaction method to construct the hierarchical structure...
In article number 1704047, Hao Ming Chen and co‐workers demonstrate an empirical utilization of light/heavy holes with hybrid metal‐2D semiconductor nanoplatelets, where the different roles are executed by light‐holes and heavy‐holes. This hybrid photocatalyst boosts the hole‐transfer and suppresses the recombination, achieving a high photocurrent density of 2.01 mA cm−2 at 1.23 V vs the reduced hydrogen...
II–VI semiconductors exhibit unique behaviors that can generate dual‐holes (“heavy and light”), but the application in photocatalysis is still missing. Herein, an empirical utilization of light/heavy holes in a hybrid metal cluster‐2D semiconductor nanoplatelets is reported. This hybrid material can boost the hole‐transfer at the surface and suppress the recombination. Different roles are enacted...
This study uses graphene oxide quantum dots (GOQDs) to enhance the Li+‐ion mobility of a gel polymer electrolyte (GPE) for lithium‐ion batteries (LIBs). The GPE comprises a framework of poly(acrylonitrile‐co‐vinylacetate) blended with poly(methyl methacrylate) and a salt LiPF6 solvated in carbonate solvents. The GOQDs, which function as acceptors, are small (3−11 nm) and well dispersed in the polymer...
In article number 1602947, Yi‐Jun Xu and co‐workers report progressive harvesting of visible‐to‐near infrared light by designing Au nanorods and metal nanoparticles co‐decorated one‐dimension CdS nanowires ensembles. They show that the fine control of a series of microscopic factors, including interfacial interaction, morphology optimization and co‐catalyst strategy in such ensembles, can result in...
Surface plasmon resonance (SPR)‐mediated photocatalysis without the bandgap limitations of traditional semiconductor has aroused significant attention in solar‐to‐chemical energy conversion. However, the photocatalytic efficiency barely initiated by the SPR effects is still challenged by the low concentration and ineffective extraction of energetic hot electrons, slow charge migration rates, random...
The diverse biological effects of nanomaterials form the basis for their applications in biomedicine but also cause safety issues. Induction of autophagy is a cellular response after nanoparticles exposure. It may be beneficial in some circumstances, yet autophagy‐mediated toxicity raises an alarming concern. Previously, it has been reported that upconversion nanoparticles (UCNs) elicit liver damage,...
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