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Bismuth chalcogenides are used as cathode materials in Zn‐proton hybrid ion batteries, which exhibit an ultraflat discharge plateau that is favorable for practical applications. Unfortunately, their capacity is not competitive, and their charge storage mechanisms are ambiguous, both of which hinder their further development. In this study, S‐doped Bi2Te3−x (SBT) nanosheets are prepared by tellurizing...
Lead‐free antiferroelectrics with excellent energy storage performance can become the core components of the next‐generation advanced pulse power capacitors. However, the low energy storage efficiency caused by the hysteresis of antiferroelectric‐ferroelectric transition largely limits their development toward miniaturization, lightweight, and integration. In this work, an ultrahigh recoverable energy...
Lead‐free dielectric ceramics with excellent energy‐storage performance are crucial to the development of the next‐generation advanced pulse power capacitors. However, low energy‐storage density limits the evolution of capacitors toward lightweight, miniaturization, and integration. Here, an effective strategy of constructing highly dynamic polarization heterogeneous nanoregions is proposed in lead‐free...
Single‐atom catalysts (SACs) for photocatalytic hydrogen peroxide (H2O2) generation are researched but it is still challenging to obtain high H2O2 yields. Herein, graphite carbon nitride (FeSA/CN) confined single Fe atoms with N/O coordination is prepared, and FeSA/CN shows high H2O2 production via oxalic acid and O2 activation. Under visible light illumination, the concentration of H2O2 generated...
Boosting charge separation and transfer of photoanodes is crucial for providing high viability of photoelectrochemical hydrogen (H2) generation. Here, a structural engineering strategy is designed and synthesized for uniformly coating an ultrathin CoFe bimetal‐organic framework (CoFe MOF) layer over a BiVO4 photoanode for boosted charge separation and transfer. The photocurrent density of the optimized...
Carbon@Titania Yolk–Shell Nanostructures
In article number 2203881, Shih‐Yun Chen, Chi‐Liang Chen, and co‐workers use carbon@titania yolk‐shell nanostructures for acetaminophen photocatalytic degradation in water. X‐ray absorption spectroscopy discovers critical charge transfer processes and holes that formed in the p‐d hybridized bands significantly enhance photodegradation ability under solar irradiation...
Carbon@titania yolk–shell nanostructures are successfully synthesized at different calcination conditions. These unique structure nanomaterials can be used as a photocatalyst to degrade the emerging water pollutant, acetaminophen (paracetamol). The photodegradation analysis studies have shown that the samples with residual carbon nanospheres have improved the photocatalytic efficiency. The local electronic...
The localization and accumulation of drugs in the body determine their therapeutic effects; however, the specific microstructure of damaged tissues hinders drug delivery. Currently, there is a shortage of effective drug carriers to breach these barriers and achieve efficient tissue and cellular delivery of drugs. In this study, an injectable double positively charged functional hydrogel microsphere...
The oxygen evolution reaction (OER) is crucial to electrochemical hydrogen production. However, designing and fabricating efficient electrocatalysts still remains challenging. By confinedly coordinating organic ligands with metal species in layered double hydroxides (LDHs), an innovative LDHs‐assisted approach is developed to facilely synthesize freestanding bimetallic 2D metal–organic framework nanosheets...
Single atom catalysts (SACs) have shown their noticeable potential and gradually become a new favorite in catalytic field due to the particular selectivity, high catalytic performance, and strong durability. The most important factor in the synthesis of SACs is the selection of appropriate support and formation of metal–support interaction. Among a large number of nanomaterials, MXenes can be utilized...
Abundant reactive oxygen species and tumor necrosis factor‐α (TNF‐α) cytokine supply of M1‐type macrophages boost rheumatoid arthritis (RA) pathological process. For efficient RA therapy, here a multifunctional nanoplatform is presented based on generation 5 (G5) poly(amidoamine) dendrimer‐entrapped gold nanoparticles (Au DENPs) to achieve co‐delivery of antioxidant alpha‐tocopheryl succinate (α‐TOS)...
Pancreatic cancer is a highly aggressive malignancy that strongly resists extant treatments. The failure of existing therapies is majorly attributed to the tough tumor microenvironment (TME) limiting drug access and the undruggable targets of tumor cells. The formation of suppressive TME is regulated by transforming growth factor beta (TGF‐β) signaling, while the poor response and short survival of...
Direct covalent functionalization of large‐area single‐layer hexagonal boron nitride (hBN) with various polymer brushes under mild conditions is presented. The photopolymerization of vinyl monomers results in the formation of thick and homogeneous (micropatterned, gradient) polymer brushes covalently bound to hBN. The brush layer mechanically and chemically stabilizes the material and allows facile...
In article number 1805228, Ihsan Amin, Tao Zhang, Rainer Jordan, and co‐workers present the direct covalent functionalization of hexagonal boron nitride (hBN) with polymer brushes under mild conditions. Photopolymerization results demonstrate the formation of thick and homogeneous (micropatterned, graded) polymer brushes covalently bound to hBN. The brush layer mechanically and chemically stabilizes...
This work reveals the intrinsic carrier transport behavior of 2D organolead halide perovskites based on phase‐pure homologous (n = 1, 2, and 3) Ruddelsden–Popper perovskite (RPP) (BA)2(MA)n−1PbnI3n+1 single crystals. The 2D perovskite field effect transistors with high‐quality exfoliated 2D perovskite bulk crystals are fabricated, and characteristic output and transfer curves are measured from individual...
Controllable degradation and excellent biocompatibility during/after a lifetime endow emerging transient electronics with special superiority in implantable biomedical applications. Currently, most of these devices need external power sources, limiting their real‐world utilizations. Optimizing existing bioresorbable electronic devices requires natural‐material‐based construction and, more importantly,...
Novel self‐powered nanoscale photodetectors that can work without an external power source, which have great application potential in next‐generation nanodevices that operate wirelessly and independently, are being widely studied. This review aims to give a comprehensive summary of the state‐of‐the‐art research results on self‐powered nanoscale photodetectors. An introduction of recent progress on...
There is an urgent demand to develop earth‐abundant electrocatalysts for efficient and durable water oxidation under mild conditions. A nickel‐substituted cobalt‐borate nanowire array is developed on carbon cloth (Ni‐Co‐Bi/CC) via oxidative polarization of NiCo2S4 nanoarray in potassium borate (K‐Bi). As a bimetallic electrocatalyst for water oxidation, such Ni‐Co‐Bi/CC is superior in catalytic activity...
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