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Developing highly efficient bi‐functional noble‐metal‐free oxygen electrocatalysts with low‐cost and scalable synthesis approach is challenging for zinc–air batteries (ZABs). Due to the flexible valence state of manganese, MnF2 is expected to provide efficient OER. However, its insulating properties may inhibit its OER process to a certain degree. Herein, during the process of converting the manganese...
Manipulation of persistent charges in semiconductor nanostructure is the key point to obtain quantum bits towards the application of quantum memory and information devices. However, realizing persistent charge storage in semiconductor nano‐systems is still very challenge due to the disturbance from crystal defects and environment conditions. Herein, the two‐photon persistent charging induced long‐lasting...
Non‐noble metal catalysts are known for their efficient catalytic performance for oxygen reduction reaction (ORR), oxygen evolution reaction (OER), and hydrogen evolution reaction (HER). Metal organic gels (MOGs) can be considered as a promising electrocatalyst owing to the diverse physicochemical properties but usually suffer from its poor electrical conductivity and catalytic stability. Here, a...
A general method for the direct synthesis of highly homogeneous and dense polymerized carbon nitride (PCN) nanosheet films on F: SnO2 (FTO) is developed. Detailed photoelectrochemical (PEC) water‐splitting studies reveal that the as‐synthesized PCN films exhibit outstanding performance as photoanode for PEC water‐splitting. The optimal PCN photoanode exhibits excellent photocurrent density of 650 µA...
Sodium‐based dual‐ion batteries (SDIBs) have become a new type of energy storage device with great application value because of their high operating voltage, high energy density, and low cost. However, transition‐metal dichalcogenide (TMD) anodes show unsatisfactory Na+ electrochemical performance owing to the low intrinsic conductivity and inferior ion transport kinetics. Here, an elaborate design...
Conversion‐type cathodes such as metal fluorides, especially FeF2 and FeF3, are potential candidates to replace intercalation cathodes for the next generation of lithium ion batteries. However, the application of iron fluorides is impeded by their poor electronic conductivity, iron/fluorine dissolution, and unstable cathode electrolyte interfaces (CEIs). A facile route to fabricate a mechanical strong...
Two‐dimensional (2D) lamellar membranes have attracted increasing attention for efficient water purification. However, the low water‐permeability, structural failure in aqua and high production cost have significantly restricted their practical large‐scale applications. Inspired by the structures of glomerular filtration barrier (GFB) and nacre, a high‐performance biomimic membrane via supramolecular‐mediated...
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...
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...
The electrochemical carbon dioxide reduction reaction (CO2RR) provides a sustainable strategy to relieve global warming and achieve carbon neutrality. However, the practical application of CO2RR is still limited by the poor selectivity and low current density. Here, the surface molecular functionalization of unusual phase metal nanomaterials for high‐performance CO2RR under industry‐relevant current...
In vivo fluorescence imaging can perform real‐time, noninvasive, and high spatiotemporal resolution imaging to accurately obtain the dynamic biological information in vivo, which plays significant roles in the early diagnosis and treatment of cancer. However, traditional in vivo fluorescence imaging usually operates in the visible and near‐infrared (NIR)‐I windows, which are severely interfered by...
Aluminum–air batteries (AABs) are deemed as a potential clean energy storage device. However, exploiting high‐efficiency and stable oxygen reduction reaction (ORR) electrocatalysts in AABs is still a challenge. Iron phthalocyanine (FePc) shows a great prospect in ORR but still far from Pt‐based catalysts. Here, the hybrid electrocatalysts of monolayer FePc and hollow N,S‐doped carbon spheres (HNSCs)...
Metal–Air Batteries
In article number 2105594, Miao Yu, Jie Zhang, and co‐workers report the development of iron phthalocyanine (FePc) anchored onto N,S–doped hollow carbon spheres (HNSCs) to form FePc@HNSC. The charge distribution and d–band center of Fe atoms can be efficiently optimized. The material is applied as an efficient oxygen reduction electrocatalyst for aluminum–air batteries.
Many enveloped viruses utilize endocytic pathways and vesicle trafficking to infect host cells, where the acidification of virus‐containing endosomes triggers the virus‐endosome fusion events. Therefore, simultaneous correlation of intracellular location, local pH, and individual virus dynamics is important for gaining insight into viral infection mechanisms. Here, an imaging approach is developed...
Given the inherent characteristics of transition metal fluorides and open tunnel‐type frameworks, intercalation‐conversion‐type FeF3·0.33H2O has attracted widespread attention as a promising lithium‐ion battery cathode material with high operating voltage and high energy density. However, its low electronic conductivity and poor structural stability impede its practical application in high‐rate capacity...
Hybrid halide perovskites emerging as a highly promising class of functional materials for semiconductor optoelectronic applications have drawn great attention from worldwide researchers. In the past few years, prominent nonlinear optical properties have been demonstrated in perovskite bulk structures indicating their bright prospect in the field of nonlinear optics (NLO). Following the surge of 3D...
Ionometallurgy is a new development aiming at the sustainable low‐temperature conversion of naturally occurring metal ores and minerals to their metals or valuable chemicals in ionic liquids (ILs) or deep eutectic solvents. The IL betainium bis((trifluoromethyl)sulfonyl)imide, [Hbet][NTf2], is especially suited for this process due to its redox‐stability and specific‐functionalization. The potentiostatic...
Those responsible for the development of sonosensitizers are faced with a dilemma between high sonosensitization efficacy and good biosecurity that limited the development of sonodynamic therapy (SDT). Herein, inspired by the intriguing therapeutic features of SDT and the potential catalytic activity of graphene quantum dots, the potential of N‐doped graphene quantum dots (N‐GQDs) to act as a sonosensitizer...
In article number 2004867, Yiqin Shi, Guqiao Ding and co‐workers demonstrate the superior sonosensitization effect of N‐doped graphene quantum dots, which is believed to be 3–5 times higher than that of traditional sonosensitizers. More importantly, pyrrole N and pyridine N are believed to form catalytic centers in sonochemical processing of N‐doped graphene quantum dots. This knowledge is important...
The extremely complex structure of carbon‐based quantum dots (CQDs) greatly limits the understanding of the solid‐state photoluminescent mechanism of CQDs. In article number 2004621, Siwei Yang, Peng He, Guqiao Ding, and co‐workers summarize the current understanding of the solid‐state photoluminescent (PL) of solid‐state CQDs from the perspective of energy band theory and electronic transitions....
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