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Perovskite and spinel oxides are promising alternatives to noble metal‐based electrocatalysts for oxygen evolution reaction (OER). Herein, a novel perovskite/spinel nanocomposite comprised of SrCo0.4Fe0.6O3 and CoFe2O4 (SCF/CF) is prepared through a simple one‐step method that incorporates iron doping into a SrCoO3‐δ matrix, circumventing complex fabrication processes typical of these materials. At...
The self‐healing ability of superhydrophobic surfaces in air has attracted tremendous additions in recent years. Once the superhydrophobic surface is damaged underwater, water seeps into gaps among micro/nano structures. The air film diffuses into water and eventually disappears during immersion without actively replenishing the gas, which results in the impossible of self‐healing. Here, an underwater...
Li+ insertion‐induced structure transformation in crystalline electrodes vitally influence the energy density and cycle life of secondary lithium‐ion battery. However, the influence mechanism of structure transformation‐induced Li+ migration on the electrochemical performance of micro‐crystal materials is still unclear and the strategy to profit from such structure transformation remains exploited...
Electronic Skin
In article number 2308127, Qichong Zhang, Nam‐Young Kim, Yang Li, and co‐workers propose a novel all‐fabric bionic (AFB) electronic skin (e‐skin) based on capacitive sensing, which achieves intuition and tactile bimodal sensing based on the fringing and iontronic effects. Assisted by the artificial intelligence‐motivated “brain”, the proposed AFB e‐skin can achieve the efficient perception...
Developing electronic skins (e‐skins) with extraordinary perception through bionic strategies has far‐reaching significance for the intellectualization of robot skins. Here, an artificial intelligence (AI)‐motivated all‐fabric bionic (AFB) e‐skin is proposed, where the overall structure is inspired by the interlocked bionics of the epidermis‐dermis interface inside the skin, while the structural design...
Functional metamaterials can be constructed by assembling nanoparticles (NPs) into well‐ordered structures, which show fascinating properties at different length scales. Using polymer‐grafted NPs (PGNPs) as a building block, flexible composite metamaterials can be obtained, of which the structure is significantly affected by the property of polymer ligands. Here, it is demonstrated that the crystallization...
Borophene, a promising material with potential applications in electronics, energy storage, and sensors, is successfully grown as a monolayer on Ag(111), Cu(111), and Au(111) surfaces using molecular beam epitaxy. The growth of two‐dimensional borophene on Ag(111) and Au(111) is proposed to occur via surface adsorption and boron segregation, respectively. However, the growth mode of borophene on Cu(111)...
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...
Improving local bone mineral density (BMD) at fracture‐prone sites of bone is a clinical concern for osteoporotic fracture prevention. In this study, a featured radial extracorporeal shock wave (rESW) responsive nano‐drug delivery system (NDDS) is developed for local treatment. Based on a mechanic simulation, a sequence of hollow zoledronic acid (ZOL)‐contained nanoparticles (HZNs) with controllable...
The carrier concentration in n‐type layered Bi2Te3‐based thermoelectric (TE) material is significantly impacted by the donor‐like effect, which would be further intensified by the nonbasal slip during grain refinement of crushing, milling, and deformation, inducing a big challenge to improve its TE performance and mechanical property simultaneously. In this work, high‐energy refinement and hot‐pressing...
In this work, it is reported that large‐area (centimeter‐scale) arrays of non‐close‐packed polystyrene‐tethered gold nanorod (AuNR@PS) can be prepared through a liquid–liquid interfacial assembly method. Most importantly, the orientation of AuNRs in the arrays can be controlled by changing the intensity and direction of electric field applied in the solvent annealing process. The interparticle distance...
Inorganic cesium lead halide perovskite single crystals are particularly intriguing to ionizing radiation detection by virtue of their material stability and high attenuation coefficients. However, the growth of high‐quality inorganic perovskite single crystals remains challenging, mainly due to the limited solubility. In this work, an additive‐enhanced crystallization method is proposed for cesium...
The relatively short‐lived excited states, such as the nascent electron–hole pairs (excitons) and the shallow trapping states, in semiconductor‐based photocatalysts produce an exceptionally high charge carrier recombination rate, dominating a low solar‐to‐fuel performance. Here, a π‐conjugated in‐plane heterostructure between graphitic carbon nitride (g‐CN) and carbon rings (Crings) (labeling g‐CN/C...
Layered double‐hydroxide (LDH) has been considered an important class of electrocatalysts for the oxygen evolution reaction (OER), but the adsorption‐desorption behaviors of oxygen intermediates on its surface still remain unsatisfactory. Apart from transition‐metal doping to solve this electrocatalytic problem of LDH, rare‐earth (RE) species have sprung up as emerging dopants owing to their unique...
Achieving efficient conversion of carbon dioxide (CO2) to formic acid (HCOOH) at mild conditions is a promising means to reduce greenhouse gas emission and mitigate the energy crisis. Herein, spin‐polarized density functional theory calculations with van der Waals corrections (DFT+D3) are performed to analyze the catalytic activity of seven metals (Ti, Fe, Ni, Cu, Zn, In, and Sn) anchored on a tungsten...
Exploring highly active and cost‐efficient single‐atom catalysts (SACs) for oxygen reduction reaction (ORR) is critical for the large‐scale application of Zn–air battery. Herein, density functional theory (DFT) calculations predict that the intrinsic ORR activity of the active metal of SACs follows the trend of Co > Fe > Ni ≈ Cu, in which Co SACs possess the best ORR activity due to its optimized...
The most common size range of particulate matter (PM) in tobacco smoke is 1.0 to 5.0 microns; however, a high number of the most harmful PM is as small as 0.5 micron that is a serious threat to human health, and it is difficult to remove. There is an urgent need to develop a new purification technology for high‐efficiency removing tobacco smoke with easily construction and low cost. Here, a method...
2D covalent organic frameworks (COFs) are considered as one kind of the most promising crystalline porous materials for solar‐driven hydrogen production. However, adding noble metal co‐catalysts into the COFs‐based photocatalytic system is always indispensable. Herein, through a simple solvothermal synthesis method, TpPa‐1‐COF, a typical 2D COF, which displays a wide light absorption region, is rationally...
Deficiencies in understanding the local environment of active sites and limited synthetic skills challenge the delivery of industrially‐relevant current densities with low overpotentials and high selectivity for CO2 reduction. Here, a transient laser induction of metal salts can stimulate extreme conditions and rapid kinetics to produce defect‐rich indium nanoparticles (L‐In) is reported. Atomic‐resolution...
Solar‐driven production of hydrogen peroxide (H2O2), as an important industrial chemical oxidant with an extensive range of applications, from oxygen reduction is a sustainable alternative to mainstream anthraquinone oxidation and direct hydrogenation of dioxygen methods. The efficiency of solar to hydrogen peroxide over semiconductor‐based photocatalysts is still largely limited by the narrow light...
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