The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Establishing effective charge transfer channels between two semiconductors is key to improving photocatalytic activity. However, controlling hetero‐structures in situ and designing binding modes pose significant challenges. Herein, hydrolytic SnCl2·2H2O is selected as the metal source and loaded in situ onto a layered carbon nitriden supramolecular precursor. A composite photocatalyst, S4–Sn–N2, with...
Polyacrylonitrile/Boric acid/Melamine/the delaminated BN nanosheets electrospun fiber membrane (PB3N1BN) with excellent mechanical property, high thermal stability, superior flame‐retardant performance, and good wettability are fabricated by electrospinning PAN/DMF/H3BO3/C3H6N6/ the delaminated BN nanosheets (BNNSs) homogeneous viscous suspension and followed by a heating treatment. BNNSs are obtained...
Developing low‐cost and long‐cycling‐life aqueous zinc (Zn) ion capacitors (AZICs) for large‐scale electrochemical energy storage still faces the challenges of dendritic Zn deposition and interfacial side reactions. Here, an interface engineering strategy utilizing a dibenzenesulfonimide (BBI) additive is employed to enhance the stability of the Zn metal anode/electrolyte interface. The first‐principles...
The coupling of photocatalytic hydrogen production and selective oxidation of benzylamine is a topic of significant research interest. However, enhancing the bifunctional photocatalytic activity in this context is still a major challenge. The construction of Z‐scheme heterojunctions is an effective strategy to enhance the activity of bifunctional photocatalysts. Herein, a p‐n type direct Z‐scheme...
Cation‐intercalated vanadates, which have considerable promise as the cathode for high‐performance potassium metal batteries (PMBs), suffer from structural collapse upon K+ insertion and desertion. Exotic cations in the vanadate cathode may ease the collapse, yet their effect on the intrinsic cation remains speculative. Herein, a stable and dendrite‐free PMB, composed of a Na+ and K+ co‐intercalated...
Lead mixed‐halide perovskites offer tunable bandgaps for optoelectronic applications, but illumination‐induced phase segregation can quickly lead to changes in their crystal structure, bandgaps, and optoelectronic properties, especially for the Br–I mixed system because CsPbI3 tends to form a non‐perovskite phase under ambient conditions. These behaviors can impact their performance in practical applications...
Pyridinic nitrogen has been recognized as the primary active site in nitrogen‐doped carbon electrocatalysts for the oxygen reduction reaction (ORR), which is a critical process in many renewable energy devices. However, the preparation of nitrogen‐doped carbon catalysts comprised of exclusively pyridinic nitrogen remains challenging, as well as understanding the precise ORR mechanisms on the catalyst...
Metal–nitrogen–carbon (M–C/N) electrocatalysts have been shown to have satisfactory catalytic activity and long‐term durability for the oxygen reduction reaction (ORR). Here, a strategy to prepare a new electrocatalyst (Fe&Pd–C/N) using a unique metal‐containing ionic liquid (IL) is exploited, in which Fe & Pd ions are positively charged species atomically dispersed by coordination to the...
The intracellular uptake and interaction behavior of emulsion microparticles in liver cells critical to host defense and inflammation is significant to understanding their potential cytotoxicity and biomedical applications. In this study, the cell death responses of fibroblastic, hepatocyte, and Kupffer cells (KCs) induced by four types of emulsion particles that are stabilized by polysaccharide nanofibers...
The Ti3C2Tx film with metallic conductivity and high pseudo‐capacitance holds profound promise in flexible high‐rate supercapacitors. However, the restacking of Ti3C2Tx sheets hinders ion access to thick film electrodes. Herein, a mild yet green route has been developed to partially oxidize Ti3C2Tx to TiO2/Ti3C2Tx by introducing O2 molecules during refluxing the Ti3C2Tx suspension. The subsequent...
The development of high‐efficiency enzyme mimics is of great significance in the field of biocatalysis. However, it remains challenging to design novel enzyme mimics with multiple enzyme‐like activities, excellent stability, and good reusability. Herein, a facile molecular assembly strategy to construct dialdehyde cellulose (DAC) templated Cu‐doped polydopamine (DAC@PDA/Cu) membrane with dual enzyme‐like...
As a widely used substrate for flexible electronics, indium‐tin oxide‐based polymer electrodes (polymer‐ITO electrodes) exhibit poorly visible light transmittance of less than 80%. The inferior transmittance for polymer‐ITO electrodes severely limits the performance improvement of polymer‐ITO based electronics. Here, a conceptually different approach of the double‐sided antireflection coatings (DARCs)...
Edge Reconstruction
An unprecedented U‐edge reconstruction with the lowest energy is revealed to occur easily in the bilayer phosphorene. Such U‐edge reconstruction exhibits unexpectedly ultrafast electronic and thermal transport, nearly without edgeless scattering. More information can be found in article number 2105130 by Junfeng Gao, Gang Zhang, and co‐workers.
Edge termination plays a vital role in determining the properties of 2D materials. By performing compelling ab initio simulations, a lowest‐energy U‐edge [ZZ(U)] reconstruction is revealed in the bilayer phosphorene. Such reconstruction reduces 60% edge energy compared with the pristine one and occurs almost without an energy barrier, implying it should be the dominating edge in reality. The electronic...
Fluorophores with high quantum yields, extended maximum emission wavelengths, and long photoluminescence (PL) lifetimes are still lacking for sensing and imaging applications in the second near‐infrared window (NIR‐II). In this work, a series of rod‐shaped icosahedral nanoclusters with bright NIR‐II PL, quantum yields up to ≈8%, and a peak emission wavelength of 1520 nm are reported. It is found that...
The photocatalytic efficiency of polymeric carbon nitride is hampered by high carrier recombination rate and low charge transfer. Herein, these issues are addressed by constructing 1D strip‐like carbon nitride with a large π‐electron conjugated system from carbon‐doping, realizing the synchronization control of its electronic structure and morphology. Nicotinic acid, a monomer with the carboxyl group...
Development of highly stabilized and reversible cathode materials has become a great challenge for sodium‐ion batteries. O′3‐type layered Mn‐based oxides have deserved much attention as one of largely reversible‐capacity cathodes featured by the resource‐rich and low‐toxic elements. However, the fragile slabs structure of typical layered oxides, low Mn‐ion migration barriers, and Jahn–Teller distortion...
Double halide perovskites are a class of promising semiconductors applied in photocatalysis, photovoltaic devices, and emitters to replace lead halide perovskites, owing to their nontoxicity and chemical stability. However, most double perovskites always exhibit low photoluminescence quantum efficiency (PLQE) due to the indirect bandgap structure or parity‐forbidden transition problem, limiting their...
Wearable in‐plane Zn‐based microbatteries are considered as promising micropower sources for wearable electronics due to their high capacity, low cost, high safety, and easy integration. However, their applications are severely impeded by inadequate energy density arising from unsatisfactory capacity of cathode and poor cycling stability caused by degradation of electrode materials and Zn dendrite...
Osteogenesis, osteoclastogenesis, and angiogenesis are the most important processes in bone repair. Parathyroid hormone (PTH) has pro‐osteogenic, pro‐osteoclastogenic, and proangiogenic effects and may be a candidate for use in bone defect repair. However, the local application of PTH to bone defects is counterproductive due to its excessive osteoclastic and bone resorptive effects. In this study,...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.