Surface co‐Modification of Halide Anion and Potassium Cation Promotes High‐rate CO2‐to‐Ethanol Electrosynthesis

Abstract The high-rate electrochemical CO2 conversion to ethanol with high partial current density is attractive but challenging, which requires competing with other reduction products as well as hydrogen evolution. In this work, we demonstrate the in-situ reconstruction of KCuF3 perovskite under CO2 electroreduction conditions to fabricate a surface...

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Perovskite or Not Perovskite? A Deep Learning Approach to Automatically Identify New Hybrid Perovskites from X‐ray Diffraction Patterns

Abstract Determining the crystal structure is a critical step in the discovery of new functional materials. This process is time consuming and requires extensive human expertise in crystallography. Here, we developed a machine learning based approach which enables to determine automatically if an unknown material is of perovskite type from powder X-ray...

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Molecularly Distorted Local Structure in Bi2CuO4 Oxide to Stabilize Lattice Oxygen for Efficient Formate Electrosynthesis

Abstract Electrochemical CO2 reduction reaction (CO2RR) provides an economically feasible way for converting green energy into valuable chemical feedstocks and fuels. Great progress have been achieved in understanding and synthesis of oxidized-based precatalysts; however, their dynamical changes of local structure under operando conditions still hinder...

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Tropocollagen Inspired Hierarchical Spiral Structure of Organic Fibers in Epoxy Bulk for Three‐dimensional High Thermal Conductivity

Abstract Polymers are usually considered thermal insulators; however, significant enhancements in thermal conductivity (k) have been observed in oriented fibers and films. Despite being advantageous in real-world applications, extending the linear thermal-transport advantage of polymers into the three-dimensional space in bulk materials is still limited...

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Multispectral large‐area X‐ray Imaging Enabled by Stacked Metal Halide Scintillators

Abstract Conventional energy-integration black-white X-ray imaging lacks spectral information of X-ray photons. Although X-ray spectra (energy) can be distinguished by photon-counting technique typically with CdZnTe detectors, it is very challenging to be applied to large-area flat-panel X-ray imaging (FPXI). Herein, we design multi-layer stacked scintillators...

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All‐Solid‐State Thin Film Lithium/Lithium‐Ion Microbatteries for Powering the Internet of Things

Abstract As the world steps into the era of Internet of Things (IoT), numerous miniaturized electronic devices requiring autonomous micropower sources will be connected to the internet. All-solid-state thin-film lithium/lithium-ion microbatteries (TFBs) combining solid-state battery architecture and thin-film manufacturing are regarded as ideal on-chip...

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Enabling High–Voltage “Superconcentrated Ionogel–in–Ceramic” Hybrid Electrolyte with Ultrahigh Ionic Conductivity and Single Li+–ion Transference Number

Abstract High room-temperature ionic conductivities, large Li+–ion transference numbers, and good compatibility with both Li metal anodes and high–voltage cathodes of the solid electrolytes are the essential requirement for practical solid–state lithium metal batteries. Herein, we report a unique “superconcentrated ionogel–in–ceramic” (SIC) electrolyte...

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4D Printing of Freestanding Liquid Crystal Elastomers via Hybrid Additive Manufacturing

Abstract Liquid crystal elastomers (LCE) are appealing candidates among active materials for 4D printing, due to their reversible, programmable, and rapid actuation capabilities. Recent progress has been made on direct ink writing (DIW) or digital light processing (DLP) to print LCEs with certain actuation. However, it remains a challenge to achieve...

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Cationic Polysaccharide Conjugates as Antibiotic Adjuvants Resensitize Multidrug‐Resistant Bacteria and Prevent Resistance

Abstract In recent years, traditional antibiotic efficacy has rapidly diminished due to the advent of multidrug-resistant (MDR) bacteria which pose severe threats to human life and globalized healthcare. Currently, the development cycle of new antibiotics cannot match the ongoing MDR infection crisis. Therefore, novel strategies are required to resensitize...

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Flat‐Zigzag Interface Design of Chalcogenide Heterostructure towards Ultra‐Low Volume Expansion for High‐Performance Potassium Storage

Abstract Heterostructure construction of layered metal chalcogenides can boost their alkali-metal storage performance, where the charge transfer kinetics could be promoted by the built-in electric fields. However, these heterostructures usually undergo interface separation due to severe layer expansion, especially for large-size potassium accommodation,...

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