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Graphene‐based materials (GBMs) possess a unique set of properties including tunable interlayer channels, high specific surface area, and good electrical conductivity characteristics, making it a promising material of choice for making electrode in rechargeable batteries. Lithium‐ion batteries (LIBs) currently dominate the commercial rechargeable battery market, but their further development has been...
Flexible aqueous zinc batteries are promising candidates as safe power sources for fast‐growing portable and wearable electronics. However, the low working voltage, poor rate capability, and cycling stability have greatly restricted their development and applications. Here, a new family of flexible bimetallic phosphide/carbon nanotube hybrid fiber electrodes with unique macroscopic microcrack structure...
Flexible Aqueous Zinc Batteries
In article number 2206338, Yang Zhao and co‐workers report a high‐performance flexible aqueous zinc battery based on hybrid fiber electrode with hierarchical microcrack structure. The unique structure can not only facilitate the penetration of electrolyte for fast charge transfer, but also relieve the stress concentrations under deformations. The fabricated flexible...
The construction of multi‐heteroatom‐doped metal‐free carbon with a reversibly oxygen‐involving electrocatalytic performance is highly desirable for rechargeable metal‐air batteries. However, the conventional approach for doping heteroatoms into the carbon matrix remains a huge challenge owing to multistep postdoping procedures. Here, a self‐templated carbonization strategy to prepare a nitrogen,...
Major challenges in developing 2D transition‐metal disulfides (TMDs) as anode materials for lithium/sodium ion batteries (LIBs/SIBs) lie in rational design and targeted synthesis of TMD‐based nanocomposite structures with precisely controlled ion and electron transport. Herein, a general and scalable solvent‐exchange strategy is presented for uniform dispersion of few‐layer MoS2 (f‐MoS2) from high‐boiling‐point...
2D metal oxide nanosheets have attracted substantial attention for various applications owing to their appealing advantages. Yet, the exploration of effective methodology for fabrication of metallic 2D metal oxides with a high concentration of N dopants in a scalable manner remains challenging. Herein, a topochemical strategy is demonstrated on vanadium oxide nanosheets by combining 2D nanostructuring,...
In article number 1900583, Kun Rui, Jiaxu Yan, Jixin Zhu, and co‐workers report a topochemical strategy for large‐scale production of 2D vanadium oxide nanosheets featured with desirable metallic electron transportation. As evidenced by density functional theory calculations and experimental results, the electron band structure engineering can be realized by rational incorporation of nitrogen dopants...
Flexible devices integrated with sensing and energy storage functions are highly desirable due to their potential application in wearable electronics and human motion detection. Here, a flexible film is designed in a facile and low‐cost leaf templating process, comprising wrinkled carbon nanotubes (CNTs) as the conductive layer and patterned polydimethylsiloxane (PDMS) with bio‐inspired microstructure...
Metal–organic frameworks (MOFs) and their derivatives with well‐defined structures and compositions show great potential for wide applications such as sensors, catalysis, energy storage, and conversion, etc. However, poor electric conductivity and large volume expansion are main obstacles for their utilization in energy storage, e.g., lithium–ion batteries and supercapacitors. Herein, a facile strategy...
Recent progress in the currently available methods of producing black phosphorus bulk and phosphorene are presented. The effective passivation approaches toward improving the air stability of phosphorene are also discussed. Furthermore, the research efforts on the phosphorene and phosphorene‐based materials for potential applications in lithium ion batteries, sodium ion batteries, and thermoelectric...
Novel F‐CuO and FeOOH hollow octahedra are developed through a facile structure‐evolution reaction. The formation of interior voids within the hierarchical octahedra is motivated by the Cl− ions based etching, under a precise control over reaction agents and conditions. Owing to the synergistic effect of unique structural features and favorable composition, the hollow octahedra exhibit superior lithium‐storage...
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