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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...