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Vanadium‐based cathode materials have attracted great attention in aqueous zinc‐ion batteries (AZIBs). However, the inferior ion transport and cyclic stability due to the strong Coulomb interaction between Zn2+ and the lattice limit their further application. In this work, CO2 molecules are in situ embedded in the interlayer structure of NH4V4O10 by decomposing excess H2C2O4·2H2O in the main framework,...
Immunochromatographic Diagnosis
In article number 2310014, Chaoguang Wang, Chongwen Wang, Bing Gu, and co‐workers show that 4‐mercaptophenylboronic acid‐modified two‐dimensional film‐like magnetic SERS tag (GFe–DAu–D/M) exhibits universal capture ability and superior SERS activity for immunochromatographic diagnosis of three important bacteria in real clinical specimens. The GFe–DAu–D/M‐based immunochromatography...
Although Ruthenium‐based pyrochlore oxides can function as promising catalysts for acidic water oxidation, their limitations in terms of stability and activity still need to be addressed for further application in practical conditions. In this work, the possibility to enhance both oxygen evolution reaction activity and durability of Gd2Ru2O7‐δ through partial replacement with Na+ in Gd3+ sites is...
Strain effect in the structurally defective materials can contribute to the catalysis optimization. However, it is challenging to achieve the performance improvement by strain modulation with the help of geometrical structure because strain is spatially dependent. Here, a new class of compressively strained platinum–iridium‐metal zigzag‐like nanowires (PtIrM ZNWs, M = nickel (Ni), cobalt (Co), iron...
Achieving high catalytic activity with a minimum amount of platinum (Pt) is crucial for accelerating the cathodic hydrogen evolution reaction (HER) in proton exchange membrane (PEM) water electrolysis, yet it remains a significant challenge. Herein, a directed dual‐charge pumping strategy to tune the d‐orbital electronic distribution of Pt nanoclusters for efficient HER catalysis is proposed. Theoretical...
The performances of solid‐state polymer electrolytes are urgently required to be further improved for high energy density lithium metal batteries. Herein, a highly reinforced ultrathin composite polymer electrolyte (PLPP) is successfully fabricated in a large scale by densely filling the well‐dispersed mixture of polyethylene oxide (PEO), Li‐salt (LiTFSI) and a polymer of intrinsic microporosity (PIM‐1)...
Flexible All‐Hydrogel Supercapacitors
In article number 2309900, Jingya Nan, Yupeng Liu, Chunpeng Wang, and co‐workers develop a flexible all‐hydrogel supercapacitor that can integrate stable interface and anti‐freezing property together, which is produced by in situ polymerization of hydrogel electrolyte onto hydrogel electrodes. The constructed device demonstrates satisfactory low‐temperature capacitive...
The interactions between the catalyst and support are widely used in many important catalytic reactions but the construction of strong interaction with definite microenvironments to understand the structure‐activity relationship is still challenging. Here, strongly‐interacted composites are prepared via selective exsolution of active NiSe2 from the host matrix of NiFe2O4 (S‐NiSe2/NiFe2O4) taking advantage...
All‐hydrogel supercapacitors are emerging as promising power sources for next‐generation wearable electronics due to their intrinsic mechanical flexibility, eco‐friendliness, and enhanced safety. However, the insufficient interfacial adhesion between the electrode and electrolyte and the frozen hydrogel matrices at subzero temperatures largely limit the practical applications of all‐hydrogel supercapacitors...
Electrocatalysts with low Pt loading mass to achieve high current density (≥1 A cm−2) for hydrogen evolution reaction (HER) are still extremely challenging due to the limited intrinsic activity and weak stability of catalytic sites. The modulation of the electronic microenvironment of the support‐Pt structure is crucial to enhance the intrinsic activity and stability of catalytic sites. Herein, an...
Ensuring an appropriate nitrite level in food is essential to keep the body healthy. However, it still remains a huge challenge to offer a portable and low‐cost on‐site food nitrite analysis without any expensive equipment. Herein, a portable integrated electrochemical sensing system (IESS) is developed to achieve rapid on‐site nitrite detection in food, which is composed of a low‐cost disposable...
Achieving ultrabright fluorogens is a key issue for fluorescence‐guided surgery (FGS). Fluorogens with aggregation‐induced emission (AIEgens) are potential agents for FGS on the benefit of the bright fluorescence in physiological conditions. Herein, the fluorescence brightness of AIEgen is further improved by preparing the nanoparticle using a polystyrene‐based matrix and utilizing it for tumor FGS...
Although 2D π‐d conjugated metal–organic frameworks (MOFs) exhibit high in‐plane conductivity, the closely stacked layers result in low specific surface area and difficulty in mass transfer and diffusion. Hence, a conductive 3D MOF Fe3(HITP)2/bpm@Co (HITP = 2,3,6,7,10,11‐hexaiminotriphenylene) is reported through inserting bpm (4,4′‐bipyrimidine) ligands and Co2+ into the interlayers of 2D MOF Fe3...
Hydrogen peroxide (H2O2) is a highly value‐added and environmental‐friendly chemical with various applications. The production of H2O2 by electrocatalytic 2e− oxygen reduction reaction (ORR) has emerged as a promising alternative to the energy‐intensive anthraquinone process. High selectivity Catalysts combining with superior activity are critical for the efficient electrosynthesis of H2O2. Earth‐abundant...
Excitation of Dirac plasmon polaritons (DPPs) in bi‐dimensional materials have attracted considerable interest in recent years, both from perspectives of understanding their physics and exploring their transformative potential for nanophotonic devices, including ultra‐sensitive plasmonic sensors, ultrafast saturable absorbers, modulators, and switches. Topological insulators (TIs) represent an ideal...
Wearable thermoelectric generators (TEGs) have exhibited great potential to convert the temperature gradient between the human body and the environment into electrical energy for maintenance‐free wearable applications. A 2D planar device structure is widely employed for fabricating flexible TEGs due to its simple structure and facile fabrication properties. However, this device configuration is more...
All‐solid‐state batteries employing sulfide solid electrolyte and Li metal anode are promising because of their high safety and energy densities. However, the interface between Li metal and sulfides suffers from catastrophic instability which stems the practical use. Here, a dynamically stable sulfide electrolyte architecture to construct the hierarchy of interface stability is reported. By rationally...
The increasing demand for graphite and the higher lithium content than environment abundance make the recycling of anode in spent lithium‐ion batteries (LIBs) also become an inevitable trend. This work proposes a simple pathway to convert the retired graphite to high‐performance expanded graphite (EG) under mild conditions. After the oxidation and intercalation by FeCl3 for the retired graphite, H...
Mineralization capable of growing inorganic nanostructures efficiently, orderly, and spontaneously shows great potential for application in the construction of high‐performance organic–inorganic composites. As a thermodynamically spontaneous solid‐phase crystallization reaction involving dual organic and inorganic components, mineralization allows for the self‐assembly of sophisticated and exclusive...
Carbon monoxide shows great therapeutic potential in anti‐cancer. In particular, the construction of multifunctional CO delivery systems can promote the precise delivery of CO and achieve ideal therapeutic effects, but there are still great challenges in design. In this work, a RSS and ROS sequentially activated CO delivery system is developed for boosting NIR imaging‐guided on‐demand photodynamic...
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