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Prussian blue analogues (PBAs) have emerged as highly promising cathode materials for sodium‐ion batteries (SIBs) due to their affordability, facile synthesis, porous framework, and high theoretical capacity. Despite their considerable potential, practical applications of PBAs face significant challenges that limit their performance. This review offers a comprehensive retrospective analysis of PBAs'...
Optimizing the local electronic structure of electrocatalysts can effectively lower the energy barrier of electrochemical reactions, thus enhancing the electrocatalytic activity. However, the intrinsic contribution of the electronic effect is still experimentally unclear. In this work, the electron injection‐incomplete discharge approach to achieve the electron accumulation (EA) degree on the nickel‐iron...
Solid‐state lithium batteries (SSLBs) are regarded as next‐generation energy storage devices because of their advantages in terms of safety and energy density. However, the poor interfacial compatibility and low ionic conductivity seriously hinder their development. Electrospinning is considered as a promising method for fabricating solid‐state electrolytes (SSEs) with controllable nanofiber structures,...
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...
As a high energy density power system, lithium–carbon dioxide (Li–CO2) batteries play an important role in addressing the fossil fuel crisis issues and alleviating the greenhouse effect. However, the sluggish transformation kinetic of CO2 and the difficult decomposition of discharge products impede the achievement of large capacity, small overpotential, and long life span of the batteries, which require...
Triboelectric nanogenerators (TENGs) have gained significant traction in recent years in the bioengineering community. With the potential for expansive applications for biomedical use, many individuals and research groups have furthered their studies on the topic, in order to gain an understanding of how TENGs can contribute to healthcare. More specifically, there have been a number of recent studies...
Monolayer tungsten disulfide (ML WS2) is believed as an ideal photosensitive material due to its small direct bandgap, large exciton/trion binding energy, high carrier mobility, and considerable quantum conversion efficiency. Compared with other photosensitive devices, planar field emission (FE)‐type photodetectors with a full‐plane structure should simultaneously have rapider switching speed and...
Metal‐organic frameworks (MOFs) have emerged as promising novel therapeutics for treating malignancies due to their tunable porosity, biocompatibility, and modularity to functionalize with various chemotherapeutics drugs. However, the design and synthesis of dual‐stimuli responsive MOFs for controlled drug release in tumor microenvironments are vitally essential but still challenging. Meanwhile, the...
Layered manganese‐based oxides (LMOs) are promising cathode materials for sodium‐ion batteries (SIBs) due to their versatile structures. However, the Jahn–Teller effect of Mn3+ induces severe distortion of MnO6 octahedra, and the resultant low symmetry is responsible for the gliding of MnO2 layers and then inferior multiple‐phase transitions upon Na+ extraction/insertion. Here, hexagonal P2‐Na0.643...
The demand for high‐performance and cost‐effective energy storage solutions for mobile electronic devices and electric vehicles has been a driving force for technological advancements. Among the various options available, transitional metal oxides (TMOs) have emerged as a promising candidates due to their exceptional energy storage capabilities and affordability. In particular, TMO nanoporous arrays...
This work reports a covalent organic framework composite structure (PMDA‐NiPc‐G), incorporating multiple‐active carbonyls and graphene on the basis of the combination of phthalocyanine (NiPc(NH2)4) containing a large π‐conjugated system and pyromellitic dianhydride (PMDA) as the anode of lithium‐ion batteries. Meanwhile, graphene is used as a dispersion medium to reduce the accumulation of bulk covalent...
2D materials have shown great potential as electrode materials that determine the performance of a range of electrochemical energy technologies. Among these, 2D copper‐based materials, such as Cu–O, Cu–S, Cu–Se, Cu–N, and Cu–P, have attracted tremendous research interest, because of the combination of remarkable properties, such as low cost, excellent chemical stability, facile fabrication, and significant...
Metal–organic frameworks (MOFs) and covalent organic frameworks (COFs) hybrid materials are a class of porous crystalline materials that integrate MOFs and COFs with hierarchical pore structures. As an emerging porous frame material platform, MOF/COF hybrid materials have attracted tremendous attention, and the field is advancing rapidly and extending into more diverse fields. Extensive studies have...
Abnormal expression of microRNA‐21 (miR‐21) is considered to be closely associated with the pathogenesis of colorectal cancer. However, great challenges do exist for the development of ultra‐sensitive biosensors to detect the abnormal expression of miR‐21 due to the low concentration in serum (fm level) at the early stage of colorectal cancer. Therefore, electric field force is used to rotate and...
De‐Icing Technologies
Achieving self‐healing anti‐icing with low ice bonding force is quite attractive but is still a challenge. In article number 2200532, Yijun Shi and co‐workers develop an anti‐ice material, which shows an obviously higher self‐healing capability and the lowest ice adhesion strength (7 ± 1 kPa) compared with all known ice phobic materials, which can maintain well after healing...
Accumulation of snow and ice often causes problems and even dangerous situations for both industry and the general population. Passive de‐icing technologies, e.g., hydrophobic, liquid‐infused bionic surfaces, have attracted more and more attention compared with active de‐icing technologies, e.g., electric heating, hot air heating, due to the passive de‐icing technology's lower energy consumption and...
Li‐rich Mn‐based oxides (LRMOs) are promising cathode materials for next‐generation lithium‐ion batteries (LIBs) with high specific energy (≈900 Wh kg−1) because of anionic redox contribution. However, LRMOs suffer from issues such as irreversible release of lattice oxygen, transition metal (TM) dissolution, and parasitic cathode–electrolyte reactions. Herein, a facile, scalable route to build homogenous...
The sodium‐ion battery (SIB) has attracted ever growing attention as a promising alternative of the lithium‐ion battery (LIB). Constructing appropriate anode materials is critical for speeding up the application of SIB. This review aims at guiding anode design from the material's perspective, and specifically focusing on solid solution metal chalcogenide anode. The sodium ion storage mechanisms of...
In article number 2100956, Haitao Zhang, Weiqing Yang, Jun Chen, and co‐workers invent a low‐cost, scalable, and air‐stable conducting polymer ink via a facile assemble‐disperse strategy for printed micro‐supercapacitors, which exhibits remarkable energy storage capacity as a power source for wearable bioelectronics in the era of Internet of Things.
Printed electronics are expected to facilitate the widespread distributed wearable electronics in the era of the Internet of things. However, developing cheap and stable electrode inks remains a significant challenge in the printed electronics industry and academic community. Here, overcoming the weak hydrophilicity of polyaniline, a low‐cost, easy‐fabricating, and air‐stable conducting polymer (CP)...
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