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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...
A family of hexagonal in‐plane chemical ordering (Mo2/3R1/3)2AlB2 (R = Tb, Dy, Ho, Er, Tm, and Lu) i‐MAB phases are synthesized with R‐3m hexagonal structure. The i‐MAB phases with R = Tb to Tm are considered to have a nonlinear ferromagnetic‐like coupling magnetic ground state with gradually weakened magnetocrystalline anisotropy due to variant R‐R distances and 4f electrons. Their 2D derivatives...
The transition metal–nitrogen–carbon (M─N─C) with MNx sites has shown great potential in CO2 electroreduction (CO2RR) for producing high value‐added C1 products. However, a comprehensive and profound understanding of the intrinsic relationship between the density of metal single atoms and the CO2RR performance is still lacking. Herein, a series of Ni single‐atom catalysts is deliberately designed...
Non‐aqueous solvents, in particular N,N‐dimethylaniline (NMP), are widely applied for electrode fabrication since most sodium layered oxide cathode materials are readily damaged by water molecules. However, the expensive price and poisonousness of NMP unquestionably increase the cost of preparation and post‐processing. Therefore, developing an intrinsically stable cathode material that can implement...
As the most popular liquid metal (LM), gallium (Ga) and its alloys are emerging as functional materials due to their unique combination of fluidic and metallic properties near room temperature. As an important branch of utilizing LMs, micro‐ and submicron‐particles of Ga‐based LM are widely employed in wearable electronics, catalysis, energy, and biomedicine. Meanwhile, the phase transition is crucial...
Topological insulators (TIs) are characterized by a full insulating gap in the bulk and gapless edge or surface states, which have attracted tremendous attention. 2D Bi (110), as a typical TI, is of particular interest due to its low symmetry structure and topologically protected and spin‐momentum‐locked Dirac surface states. However, the material's potential applications are hindered by difficulties...
Platinum‐rare earth metal (Pt‐RE) nanoalloys are regarded as a potential high performance oxygen reduction reaction (ORR) catalyst. However, wet chemical synthesis of the nanoalloys is a crucial challenge because of the extremely high oxygen affinity of RE elements and the significantly different standard reduction potentials between Pt and RE. Here, this paper presents a molten‐salt electrochemical...
Grafting‐Assisted Engineering
A new nonlinear optical (NLO) material, Cd2Nb2Te4O15, features a pseudo‐Aurivillius‐type perovskite layered structure composed of three types of NLO active groups, including CdO6 octahedron, NbO6 octahedron, and TeO4 seesaws, which exhibit a giant cond‐harmonic generation (SHG) response, a large band gap, a wide optical transparency window, superior birefringence, high...
Oxides are emerging candidates for mid‐infrared (mid‐IR) nonlinear optical (NLO) materials. However, their intrinsically weak second harmonic generation (SHG) effects hinder their further development. A major design challenge is to increase the nonlinear coefficient while maintaining the broad mid‐IR transmission and high laser‐induced damage threshold (LIDT) of the oxides. In this study, it is reported...
Hafnium‐Based Nanomaterials
The clinical translation of hafnium oxide for cancer radiotherapy has aroused extensive interest on Hf‐based nanomaterials for biomedical application. In article number 2300341, Gan Tian, Wenyan Yin, and co‐workers comprehensively summarize the recent advances in synthesis, computed tomography (CT)‐involved diagnosis and radiotherapy‐related synergistic cancer therapy of...
With the rapid development of nanotechnology and nanomedicine, there are great interests in employing nanomaterials to improve the efficiency of disease diagnosis and treatment. The clinical translation of hafnium oxide (HfO2), commercially namedas NBTXR3, as a new kind of nanoradiosensitizer for radiotherapy (RT) of cancers has aroused extensive interest in researches on Hf‐based nanomaterials for...
X‐Ray Detection and Shielding
In article number 2206782, Jian‐Qiang Wang, Jian Lin, and co‐workers demonstrate a bifunctional platform for X‐ray detection and shielding, which is realized by stepwise crystallization of millimeter‐scale thorium cluster single crystals. The judicious synergy between high‐Z thorium cations and 3‐(pyridin‐4‐yl)benzoate ligands gives rise to a radiochromic nanocluster,...
Monitoring and shielding of X‐ray radiation are of paramount importance across diverse fields. However, they are frequently realized in separate protocols and a single material integrating both functions remained elusive. Herein, a hexanuclear cluster [Th6(µ3‐OH)4(µ3‐O)4(H2O)6](pba)6(HCOO)6 (Th‐pba‐0D) incorporating high‐Z thorium cations and 3‐(pyridin‐4‐yl)benzoate ligands that can function as a...
Photo‐responsive semiconductors can facilitate nitrogen activation and ammonia production, but the high recombination rate of photogenerated carriers represents a significant barrier. Ferroelectric photocatalysts show great promise in overcoming this challenge. Herein, by adopting a low‐temperature hydrothermal procedure with varying concentrations of glyoxal as the reducing agent, oxygen vacancies...
Magnetic field enhanced electrocatalysis has recently emerged as a promising strategy for the development of a viable and sustainable hydrogen economy via water oxidation. Generally, the effects of magnetic field enhanced electrocatalysis are complex including magnetothermal, magnetohydrodynamic and spin selectivity effects. However, the exploration of magnetic field effect on the structure regulation...
Solar Cells
In article number 2108090, Gang Wang, Hao‐Li Zhang, Zhiwen Jin, and co‐workers propose a C3N quantum dots insertion method to effectively adsorb bulky organic cations, and provide nucleation sites to realize gradient distribution of solute in 2D CsPbI3 film to obtain a bi‐directional crystallization process. Importantly, the optimized 2D CsPbI3 film‐based device delivers a high power conversion...
Radical‐containing frameworks (RCFs) have emerged as promising functional materials in various fields due to the combination of the highly ordered frame structure and the fascinating property of organic radicals. Here, the first example of radical‐containing supramolecular organic frameworks (SOFs) fabricated by the chaotropic effect between closo‐dodecaborate cluster (B12H122−) and 2,4,6‐tri(4‐pyridyl)‐1,3,5‐triazine...
Two‐dimensional (2D) CsPbI3 is developed to conquer the phase‐stability problem of CsPbI3 by introducing bulky organic cations to produce a steric hindrance effect. However, organic cations also inevitably increase the formation energy and difficulty in crystallization kinetics regulation. Such poor crystallization process modulation of 2D CsPbI3 leads to disordered phase‐arrangement, which impedes...
Thermoelectric (TE) film has wide potential application in low‐grade waste heat recovery and TE generation due to its quick response and multifunctional integration. Multi‐nanocomposite is a promising method to solve the difficulty of maintaining temperature difference and achieving a high figure of merit ZT. However, the depletion layer induced by the multi‐nanocomposite typically degrades performance...
Ethanol is preferred to be oxidized into CO2 for the construction of a high‐performance direct ethanol fuel cell since this complete ethanol oxidation reaction (EOR) transfers 12 electrons. However, this EOR is sluggish and has the low activity as well as poor selectivity. To promote such a favorable EOR, more exactly the cleavage selectivity of CC bonds in ethanol, phosphorus‐doped silver‐core‐and‐Pd‐shell...
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