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Biomass‐based hydrogels have attracted great attention in flexible and sustainable self‐powered power sources but struggled to fabricate in a green, high‐efficiency, and low‐cost manner. Herein, a novel and facile alkali‐polyphenol synergetic self‐catalysis system is originally employed for the fast gelation of self‐healable and self‐adhesive lignin‐based conductive hydrogels, which can be regarded...
Constructing heterojunction of supramolecular arrays self‐assembled on metal–organic frameworks (MOFs) with elaborate charge transfer mechanisms is a promising strategy for the photocatalytic oxidation of organic pollutants. Herein, H12SubPcB–Br (SubPc–Br) and UiO‐66 are used to obtain the step‐scheme (S‐scheme) heterojunction SubPc–Br/UiO‐66 for the first time, which is then applied in the photocatalytic...
Due to their marvelous electrical and optical properties, perovskite nanocrystals have reached remarkable landmarks in solar cells, light‐emitting diodes, and photodetectors. However, the intrinsic instability of ionic perovskites, which would undergo an undesirable phase transition and decompose rapidly in ambient humidity, limits their long‐term practical deployment. To address this challenge, halogenated...
Stepper motors and actuators are among the main constituents of control motion devices. They are complex multibody systems with rather large overall volume due to their multifunctional parts and elaborate technological assembly processes. Miniaturization of individual parts is still posing assembly problems. In this paper, a single‐step lithography process to fabricate a micro‐stepper engine with...
High‐entropy materials (HEMs) with unique configuration and physicochemical properties have attracted intensive research interest. However, 2D HEMs have not been reported yet. To find out unique properties of combining 2D materials and HEMs, a series of 2D high‐entropy hydrotalcites (HEHs) is created by coprecipitation method, including quinary, septenary, and even novenary metallic elements. It is...
For the first time, a new polymer electrode AQS/S is prepared by compositing Ni3S2 nanosheets and macromolecular anthraquinone derivative (AQD) supported on nickel foam with flying colors. The AQS/S exhibits high crystalline structure and abundant S defects. Density of state calculation shows that AQD has stable internal bonding and easy external bonding with metals, conducive to the dispersion of...
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