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Attaining elevated thermal conductivity in organic materials stands as a coveted objective, particularly within electronic packaging, thermal interface materials, and organic matrix heat exchangers. These applications have reignited interest in researching thermally conductive organic materials. The understanding of thermal transport mechanisms in these organic materials is currently constrained....
Long‐term exposure to low concentration indoor VOCs of acetaldehyde (CH3CHO) is harmful to human health. Thus, a novel isogenous heterojunction CeO2/Ce‐MOF photocatalyst is synthesized via a one‐step hydrothermal method for the effective elimination of CH3CHO in this work. This CeO2/Ce‐MOF photocatalyst performs well in CH3CHO removal and achieves an apparent quantum efficiency of 7.15% at 420 nm,...
According to Archimedes' principle, a submerged object with a density lower than that of aqueous acid solution is more buoyant than a smaller one. In this work, a remarkable phenomenon is reported wherein a dissolving drop on a substrate rises in the water only after it has diminished to a much smaller size, though the buoyancy is smaller. The drop consisting of a polymer solution reacts with the...
Room temperature phosphorescence (RTP) has emerged as an interesting but rare phenomenon with multiple potential applications in anti‐counterfeiting, optoelectronic devices, and biosensing. Nevertheless, the pursuit of ultralong lifetimes of RTP under visible light excitation presents a significant challenge. Here, new phosphorescent materials that can be excited by visible light with record‐long...
Biomimetic flexible electronics for E‐skin have received increasing attention, due to their ability to sense various movements. However, the development of smart skin‐mimic material remains a challenge. Here, a simple and effective approach is reported to fabricate super‐tough, stretchable, and self‐healing conductive hydrogel consisting of polyvinyl alcohol (PVA), Ti3C2Tx MXene nanosheets, and polypyrrole...
Selective oxidation of biomass‐based molecules to high‐value chemicals in conjunction with hydrogen evolution reaction (HER) is an innovative photocatalysis strategy. The key challenge is to design bifunctional photocatalysts with suitable band structures, which can achieve highly efficient generation of high‐value chemicals and hydrogen. Herein, NiS/Cd0.6Zn0.4S Schottky junction bifunctional catalysts...
Manganese oxide is a promising cathode material for aqueous zinc batteries. However, its weak structural stability, low electrical conductivity, and sluggish reaction kinetics lead to rapid capacity fading. Herein, a crystal engineering strategy is proposed to construct a novel MnO2 cathode material. Both experimental results and theoretical calculations demonstrate that Al‐doping plays a crucial...
The electrochemical conversion reaction, usually featured by multiple redox processes and high specific capacity, holds great promise in developing high‐energy rechargeable battery technologies. However, the complete structural change accompanied by spontaneous atomic migration and volume variation during the charge/discharge cycle leads to electrode disintegration and performance degradation, therefore...
Polymer‐based solid electrolytes (PSEs) offer great promise in developing lithium metal batteries due to their attractive features such as safety, light weight, low cost, and high processability. However, a PSE‐based lithium battery usually requires a relatively high temperature (60 °C or above) to complete charge and discharge due to the poor ionic conductivity of PSEs. Herein, a gel polymer electrolytes...
Aqueous zinc ion batteries (ZIBs) are regarded as one of the most ideally suited candidates for large‐scale energy storage applications owning to their obvious advantages, that is, low cost, high safety, high ionic conductivity, abundant raw material resources, and eco‐friendliness. Much effort has been devoted to the exploration of cathode materials design, cathode storage mechanisms, anode protection...
Solid electrolytes are considered as an ideal substitution of liquid electrolytes, avoiding the potential hazards of volatilization, flammability, and explosion for liquid electrolyte–based rechargeable batteries. However, there are significant performance gaps to be bridged between solid electrolytes and liquid electrolytes; one with a particular importance is the ionic conductivity which is highly...
Lithium Metal Batteries
In article number 2106352, Fei Chen, Ben Bin Xu, and co‐workers develop a gel polymer electrolyte (GPE) with a supramolecular crosslinked structure and quadruple hydrogen bonding to fulfill a GPE with high thermal stability, good mechanical property and a high ionic conductivity of 3.8 × 10−3 S cm−1 at 25 °C. This work encompasses a route to develop high performance electrolyte...
Photoelectrochemical (PEC) conversion of CO2 in an aqueous medium into high‐energy fuels is a creative strategy for storing solar energy and closing the anthropogenic carbon cycle. However, the rational design of catalytic architectures to selectively and efficiently produce a target product such as CO has remained a grand challenge. Herein, an efficient and selective Si photocathode for CO production...
Surface/interfacial engineering is an essential technique to explore the fiber materials properties and fulfil new functionalities. An extensive scope of current physical and chemical treating methods is reviewed here together with a variety of real‐world applications. Moreover, a new surface/interface engineering approach is also introduced: self‐assembly via π–π stacking, which has great potential...
The past decade has witnessed a rapidly growing interest toward sodium ion battery (SIB) for large‐scale energy storage in view of the abundance and easy accessibility of sodium resources. Key to addressing the remaining challenges and setbacks and to translate lab science into commercializable products is the development of high‐performance anode materials. Anode materials featuring combined conversion...
2D molybdenum ditelluride (MoTe2) with polymorphism is a promising candidate to developing phase‐change memory, high‐performance transistors and spintronic devices. The phase‐transition‐assisted chemical vapor deposition (CVD) process has been used to prepare large‐scale 2H‐MoTe2 with large grain size and low density of grain boundary. However, because of the lack of precise control of the growth...
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.
Flexibility plays a vital role in wearable electronics. Repeated bending often leads to the dramatic decrease of conductivity because of the numerous microcracks formed in the metal coating layer, which is undesirable for flexible conductors. Herein, conductive textile‐based tactile sensors and metal‐coated polyurethane sponge‐based bending sensors with superior flexibility for monitoring human touch...
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