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Increasing the sulfur cathode load is an important method for promoting the commercialization of lithium–sulfur batteries. However, there is a common problem of overcharging in high‐loading experiments, which is rarely reported. In this work, it is believed that an insulating layer of S8 forms on the current collector surface, hindering electron exchange with polysulfides. Continuous external current...
Piezocatalysis has increasingly gained prominence due to its enormous potential for addressing energy shortages and environmental pollution issues. Nonetheless, the low piezocatalytic activity of state‐of‐the‐art materials seriously inhibits the practical applications of piezocatalysis. Here, it is proposed to greatly enhance the piezocatalytic activity for a perovskite ferroelectric, i.e., Sm‐doped...
Transition metal oxides with high theoretical capacities are promising anode materials for lithium‐ion batteries (LIBs). However, the sluggish reaction kinetics remain a bottleneck for fast‐charging applications due to its slow Li+ migration rate. Herein, a strategy is reported of significantly reducing the Li+ diffusion barrier of amorphous vanadium oxide by constructing a specific ratio of the VO...
Li‐ion transport and phase transition of solid electrolytes are critical and fundamental issues governing the rate and cycling performances of solid‐state batteries. In this work, in‐operando high‐pressure nuclear magnetic resonance (NMR) spectroscopy for the solid‐state battery is developed and applied, in combination with 6Li‐tracer NMR and high‐resolution NMR spectroscopy, to investigate the Li...
The development of high‐efficiency non‐precious metal electrocatalysts for alkaline electrolyte hydrogen evolution reactions (HER) is of great significance in energy conversion to overcome the limited supply of fossil fuels and carbon emission. Here, a highly active electrocatalyst is presented for hydrogen production, consisting of 2D CoSe2/Co3S4 heterostructured nanosheets along Co3O4 nanofibers...
Flexible sensors play a crucial role in intelligent electronic devices, while strain‐sensing is the fundamental feature for these sensors of different fields. Therefore, developing high‐performance flexible strain sensors is essential for building the next generation of smart electronics. Here, a self‐powered ultrasensitive strain sensor based on graphene‐based thermoelectric composite threads through...
Primary explosive, as a reliable initiator for secondary explosives, is the central component of micro‐initiators for modern aerospace systems and military operations. However, they are typically prepared as powders, posing potential safety risks because of the inevitable particles scattering issues in the actual working environments. Here, the fabrication of a highly adaptive bulk material of copper...
Carbon‐based single metal atom catalysts (SACs) are being extensively investigated to improve the kinetics of the Li–S redox reaction, which is greatly important for batteries with cell‐level energy densities >500 W h kg‐1. However, there are contradictory reports regarding the electrocatalytic activities of the different metal atoms and the role of the metal atom in LiS chemistry still remains...
Metallic zinc is regarded as an ideal anode material for high‐energy aqueous zinc ion batteries owing to its high theoretical capacity, low cost, and abundant resource. However, the undesirable dendrite formation and side reactions occurring on Zn anode during the long‐term cycling process seriously restrict the electrochemical performance of the device. Herein, 1‐hydroxy ethylidene‐1,1‐diphosphonic...
Hybrid supercapacitors (HSCs), also called supercapattery, which can substitute for low power density batteries have attracted extensive interest. However, when HSCs comes to commercial applications, there is still space for improvement in energy density. It seems that designing of electrode with high capacity is an effective measure. Herein, amorphous–crystalline MoO3‐Ni3S2/NF‐0.5 nanosheet arrays...
Air Filtration
In article number 2102051, Jinhan Mo, Guiyin Xu, Ju Li, and co‐workers develop a two‐stage electrostatically assisted air (EAA) filtration device with stage‐I plasma charging and stage‐II polydopamine coated polyethylene terephthalate (PET) coarse filters. By controlling the surface microstructure of the filters, the authors report an EAA PDA@PET filter with a high filtration efficiency,...
Airborne particulate matters (PM) pose serious health threats to the population, and efficient filtration is needed for indoor and vehicular environments. However, there is an intrinsic conflict between filtration efficiency, air resistance, and service life. In this study, a two‐stage electrostatically assisted air (EAA) filtration device is designed and the efficiency‐air resistance‐filter life...
Skutterudite CoP3 holds a unique structural formation that exhibits much better electronic properties for obtaining high energy density supercapacitors. Herein, novel skutterudite Ni–CoP3 nanosheets are constructed by etching and coprecipitating at room temperature and subsequent low‐temperature phosphorization reaction. Benefiting from the enhanced electrical conductivity and more electroactive sites...
Lithium–sulfur batteries, as one of promising next‐generation energy storage devices, hold great potential to meet the demands of electric vehicles and grids due to their high specific energy. However, the sluggish kinetics and the inevitable “shuttle effect” severely limit the practical application of this technology. Recently, design of composite cathode with effective catalysts has been reported...
Virus‐like nanoparticles (VLPs) have been used as an attractive means in cancer immunotherapy because of their unique intrinsic immunostimulatory properties. However, for treating metastatic tumors in the peritoneal cavity, such as ovarian cancer, multiple injections of therapy are needed due to the large peritoneal space and fast excretion of therapy. Here, it is reported on the development of active...
Prussian blue analogs exhibit great promise for applications in aqueous rechargeable sodium‐ion batteries (ARSIBs) due to their unique open framework and well‐defined discharge voltage plateau. However, traditional coprecipitation methods cannot prepare self‐standing electrodes to meet the needs of wearable energy storage devices. In this work, a water bath method is reported to grow microcube‐like...
The fate of stem cells at the single cell level with limited communication with other cells is still unknown due to the lack of an efficient tool for highly accurate molecular detection. Moreover, the conditional sensitivity of biological experiments requires a sufficient number of parallel experiments to support a conclusion. In this work, a microfluidic single cell chip is designed for use with...
In article number 1905001, Lin Han, Hong Liu, Yuanhua Sang, and co‐workers design a microfluidic single cell chip with a protein chip to study the effect of hydroxyapatite (HAp) on the osteogenic differentiation of human adiposederived stem cells (hADSCs) in situ at the single cell level. The detection of secretory proteins confirms that HAp nanorods enhance osteogenic differentiation at the single...
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