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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...
Lithium metal batteries (LMBs) are the most promising high energy density energy storage technologies for electric vehicles, military, and aerospace applications. LMBs require further improvement to operate efficiently when chronically or routinely exposed to high temperatures. Electrolyte engineering with high temperature tolerance and electrode compatibility has been essential to the development...
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...
Functional passivators are conventionally utilized in modifying the crystallization properties of perovskites to minimize the non‐radiative recombination losses in perovskite light‐emitting diodes (PeLEDs). However, the weak anchor ability of some commonly adopted molecules has limited passivation ability to perovskites and even may desorb from the passivated defects in a short period of time, which...
Efficient Light‐Emitting Diodes
In article number 2205336, Yue‐Min Xie, You‐Yong Li, Man‐Keung Fung, and co‐workers introduce a novel multidentate molecule (Formamidine Sulfinic Acid, FSA) to heal perovskite defects, where the intense bonding strength of the S≐O and –NH2 groups of the multidentate molecule to the undercoordinated Pb defects can effectively facilitate the passivation of the perovskites,...
Antibacterial Effects
In article number 2200548, Xu Yu, Li Xu, Itamar Willner, and co‐workers show that the Au3+‐metal‐organic framework nanoparticles (NMOFs) nanozymes reveal dual oxidase‐like and peroxidase‐like activities and act as an active catalyst for the catalyzed generation of O2•− under aerobic conditions or •OH in the presence of H2O2. The two reactive oxygen species agents cooperatively...
The synthesis and characterization of Au3+‐modified UiO‐67 metal‐organic framework nanoparticles, Au3+‐NMOFs, are described. The Au3+‐NMOFs reveal dual oxidase‐like and peroxidase‐like activities and act as an active catalyst for the catalyzed generation of O2•− under aerobic conditions or •OH in the presence of H2O2. The two reactive oxygen species (ROS) agents O2•− and •OH are cooperatively formed...
The multirelaxation behavior is promising for high‐performance dielectric materials based on polarization‐controllable high‐efficiency electromagnetic attenuation. However, a single polar unit is the main problem that restricts the development of dielectric materials in the field. Herein, by constructing multiple polar units based on nanodomain engineering, enhanced electromagnetic attenuation properties...
Resin derived hard carbons (HCs) generally demonstrate remarkable electrochemical performance for both sodium ion batteries (SIBs) and potassium‐ion batteries (KIBs), but their practical applications are hindered by their high price and high temperature pyrolysis (≈1500 °C). Herein, low‐cost pitch is coated on the resin surface to compromise the cost, and meanwhile manipulate the microstructure at...
Targeted and immunological therapy have revolutionized the malignancy treatment, but is suffering from the dose‐limiting side effects and inadequate responsiveness. The emerging nanoscale infinite coordination polymers provide a feasible strategy for tumor targeting and immune sensitization. Herein, a “one‐pot” self‐assembled strategy based on dynamic combinatorial chemistry (DCC) principle is designed...
Achieving uniform lithium (Li) deposition is the key to tackle uncontrollable dendrite growth, which hinders the application of Li metal anodes. In this study, molten Li is thermally injected into a 3D framework by growing lithiophilic CoO nanosheets on Cu foam (CF). The CoO layer grown on the CF surface physically adsorbs molten Li, which makes it possible to spontaneously wet the framework. The...