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2D MXene‐Ti3C2Tx holds great promise in various electronic applications, especially for electromagnetic interference (EMI) shielding devices and supercapacitors. Ti3C2Tx synthesis typically involves the use of hazardous fluorine‐containing chemicals that can result in the formation of inert fluoride functional groups on the surface of Ti3C2Tx, severely degrading its properties and posing a threat...
Water splitting is a promising technique in the sustainable “green hydrogen” generation to meet energy demands of modern society. Its industrial application is heavily dependent on the development of novel catalysts with high performance and low cost for hydrogen evolution reaction (HER). As a typical non‐precious metal, cobalt‐based catalysts have gained tremendous attention in recent years and shown...
Li‐CO2 battery with high energy density has aroused great interest recently, large‐scale applications are hindered by the limited cathode catalysis performance and execrably cycle performance. Herein, Mo3P/Mo Mott‐Schottky heterojunction nanorod electrocatalyst with abundant porous structure is fabricated and served as cathodes for Li‐CO2 batteries. The Mo3P/Mo cathodes exhibit ultra‐high discharge...
Lithium‐Ion Batteries
The effect of silicon particle size on its physical, chemical, and mechanochemical behaviors has been benchmarked via multiple lab‐ and synchrotron‐based characterizations. The significant differences caused by particle size in the composition transition, structure transition, particle pulverization, electrode expansion, and surface chemistry, are strongly related to their electrochemical...
High‐capacity silicon has been regarded as one of the most promising anodes for high‐energy lithium‐ion batteries. However, it suffers from severe volume expansion, particle pulverization, and repeated solid electrolyte interphase (SEI) growth, which leads to rapid electrochemical failure, while the particle size also plays key role here and its effects remain elusive. In this paper, through multiple‐physical,...
2D carbon nanomaterials such as graphene, carbon nanosheets, and their derivatives, representing the emerging class of advanced multifunctional materials, have gained great research interest because of their extensive applications ranging from electrochemistry to catalysis. However, sustainable and scalable synthesis of 2D carbon nanosheets (CNs) with hierarchical architecture and irregular structure...
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...
Nanotransducers
The microbial‐free bumblebee is a powerful tool to explore the precise control of engineered microbiota. Nanotransducers are fabricated to regulate the engineered bacteria inside the bumblebee gut by two spatiotemporal means, including magneto‐thermal and photothermal. This advanced technology lays the foundation for the treatment of bumblebee intestinal parasitic diseases and the...
Bumblebees are essential pollinators of wild‐flowering plants and crops. It is noticed that regulating the gut microorganisms of bumblebees is of great significance for the maintenance of bumblebee health and disease treatment. Additionally, social bees are used as models to study regulatory control methods of gut bacteria in vivo. However, these methods lack precision and are not studied in bumblebees...
Propylene is a crucial building block to produce many industrial‐scale chemicals including polypropylene. The separation of propylene from propane to reach the high‐purity levels needed for downstream applications is a difficult task due to the close similarities in their physical properties. The olefin/paraffin separation including that involving propylene mainly relies on highly energy‐intensive...
Aggredation‐induced electrochemiluminescence (AIECL) promises an efficient strategy for synthesize highly luminescent emitter and co‐reactant for ECL analysis, however, rational control of electrogenerated emission intensity is still challenging. The low electroconductivity and amorphous molecular configuration are intrinsic bottleneck. This work reveals the impact of polyvinyl pyrrolidone backbone...
Neuromorphic Imaging Systems
In article number 2206181, Xiaoli Zhao, Qingxin Tang, and co‐workers present a multimodal‐synergistic‐modulation neuromorphic imaging systems based on ultraflexible synaptic transistors. The device is capable to simulate the spherical structure and the environmental adaptive behavior of the human eye. Based on the function that synaptic weight can be synergistically regulated...
Inspired by human eyes, the neuromorphic visual system employs a highly efficient imaging and recognition process, which offers tremendous advantages in image acquisition, data pre‐processing, and dynamic storage. However, it is still an enormous challenge to simultaneously simulate the structure, function, and environmental adaptive behavior of the human eye based on one device. Here, a multimodal‐synergistic‐modulation...
Smart Photonic Materials
In article number 2204199, Bin Wang, Jinpeng Li, Guangdong Ying, and co‐workers construct a dual photonic bandgap structure to achieve flexible switching of intensity, wavelength, and direction of circularly polarized luminescence accompanied by ultra‐high asymmetry factor values. This work provides insights into the real‐time manipulation of circularly polarized signals by...
Currently, the smart photonic materials that can switch circularly polarized signals in real‐time have attracted extensive attention due to numerous potential applications in information storage and photonics displays. However, the dynamically reversible switching of circularly polarized signals requires precise structural reconfiguration, which is rarely achieved in traditional biomaterials. Herein,...
The disulfide compounds of molybdenum (MoS2) are layered van der Waals materials that exhibit a rich array of polymorphic structures. MoS2 can be roughly divided into semiconductive phase and metallic phase according to the difference in electron filling state of the 4d orbital of Mo atom. The two phases show completely different properties, leading to their diverse applications in biosensors. But...
Bifunctional Catalysts
In article number 2201974, Yunqi Liu, Xuan Yang, Xiang Feng, Yuan Pan, and co‐workers propose an encapsulation‐adsorption‐pyrolysis strategy for constructing Co‐Te diatomic sites with special CoN3C1‐TeN1C3 coordination structure anchored in N‐doped carbon, as efficient bifunctional catalysts for synergistic electrocatalytic hydrogen evolution and oxygen reduction. This work...
A encapsulation–adsorption–pyrolysis strategy for the construction of atomically dispersed Co‐Te diatomic sites (DASs) that are anchored in N‐doped carbon is reported as an efficient bifunctional catalyst for electrocatalytic hydrogen evolution reaction (HER) and oxygen reduction reaction (ORR). The as‐constructed catalyst shows the stable CoN3C1‐TeN1C3 coordination structure before and after HER...
The fabrication of heterostructures has inspired extensive interest in promoting the performance of solar cells or solar fuel production, but it is still challenging for nitrides to prepare structurally ordered heterostructures. Herein, one nickel nitride‐based heterostructure composed of 1D Ni0.2Mo0.8N nanorods and 0D Ni3N nanoparticles (denoted as NiMoN/NiN) is reported to exhibit significantly...
The morphologies of micromaterials play a key role in their functionality and efficiency across a broad range of applications, including catalysis, environmental remediation, and drug delivery. However, the relationships between the morphologies and performances of micromaterials still need to be further understood, to guide the rational design of effective morphologies for specific applications....
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