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The theoretical capacity of pristine silicon as anodes for lithium‐ion batteries (LIBs) can reach up to 4200 mAh g−1, however, the low electrical conductivity and the huge volume expansion limit their practical application. To address this challenge, a precursor strategy has been explored to induce the curling of graphene oxide (GO) flakes and the enclosing of Si nanoparticles by selecting protonated...
Development of intelligent nanoplatforms that can simultaneously target multiple factors associated with tumor growth and metastasis remains an extreme challenge. Here, an intelligent dendritic nanodevice incorporating both copper sulfide nanoparticles (CuS NPs) and 5,6‐dimethylxanthenone‐4‐acetic acid (DMXAA, a vascular disrupting agent) within the dendrimer internal cavities and surface modified...
Rechargeable magnesium batteries (RMBs) are promising candidates to replace currently commercialized lithium‐ion batteries (LIBs) in large‐scale energy storage applications owing to their merits of abundant resources, low cost, high theoretical volumetric capacity, etc. However, the development of RMBs is still facing great challenges including the incompatibility of the electrolyte and the lack of...
Logic switches enabled by nanoelectromechanical systems (NEMS) offer abrupt on/off‐state transition with zero off‐state leakage and minimal subthreshold swing, making them uniquely suited for enhancing mainstream electronics in a range of applications, such as power gating, high‐temperature and high‐voltage logic, and ultralow‐power circuits requiring zero standby leakage. As NEMS switches are scaled...
Sodium metal anode, featuring high capacity, low voltage and earth abundance, is desirable for building advanced sodium‐metal batteries. However, Na‐ion deposition typically leads to morphological instability and notorious chemical reactivity between sodium and common electrolytes still limit its practical application. In this study, a porous BN nanofibers modified sodium metal (BN/Na) electrode is...
Inspired by the stomata of plant leaves, Naien Shi, Yue Lin, Min Han, and co‐workers fabricate 2D Cu‐N‐C nanodisks with stomata‐like interconnected hierarchical porous topology by etching Cu‐tetrapyridylporphyrin (TPyP)‐metal–organic frameworks carbonization product (Cu@Cu‐N‐C) in article number 1902410. Such nanodiscs manifest superior oxygen reduction reaction performance, outperforming Cu@Cu‐N‐C,...
Metal,N‐codoped carbon (M‐N‐C) nanostructures are promising electrocatalysts toward oxygen reduction reaction (ORR) or other gas‐involved energy electrocatalysis. Further creating pores into M‐N‐C nanostructures can increase their surface area, fully expose the active sites, and improve mass transfer and electrocatalytic efficiency. Nonetheless, it remains a challenge to fabricate M‐N‐C nanomaterials...
Nanoscale surface‐engineering plays an important role in improving the performance of battery electrodes. Nb2O5 is one typical model anode material with promising high‐rate lithium storage. However, its modest reaction kinetics and low electrical conductivity obstruct the efficient storage of larger ions of sodium or potassium. In this work, partially surface‐amorphized and defect‐rich black niobium...
As one class of important functional materials, transition metal phosphides (TMPs) nanostructures show promising applications in catalysis and energy storage fields. Although great progress has been achieved, phase‐controlled synthesis of cobalt phosphides nanocrystals or related nanohybrids remains a challenge, and their use in overall water splitting (OWS) is not systematically studied. Herein,...
Utilizing pre‐synthesized supramolecular gels and a controllable thermal conversion technique, Yue Lin, Min Han, and co‐workers prepare three kinds of cobalt phosphides nanocrystals encapsulated by P‐doped carbon (PC) and “married” with P‐doped graphene (PG) nanohybrids. Compared with their pure phase counterparts, the mixed‐phase nanohybrids manifest better electrocatalytic performance toward overall...
2D transition metal carbides and nitrides (MXenes) have gained extensive attention recently due to their versatile surface chemistry, layered structure, and intriguing properties. The assembly of MXene sheets into macroscopic architectures is an important approach to harness their extraordinary properties. However, it is difficult to construct a freestanding, mechanically flexible, and 3D framework...
All‐inorganic perovskites have attracted increasing worldwide interest due to its significantly improved stability in atmospheric environment compared to organic–inorganic hybrid perovskites, which renders it infinitely applicable in many fields such as electronics, optoelectronics, and energy storage. However, all‐inorganic perovskites have to confront the challenges from fabrication before their...
Monolayer of 2D transition metal dichalcogenides, with a thickness of less than 1 nm, paves a feasible path to the development of ultrathin memristive synapses, to fulfill the requirements for constructing large‐scale high density 3D stacking neuromorphic chips. Herein, memristive devices based on monolayer n‐MoS2 on p‐Si substrate with a large self‐rectification ratio, exhibiting photonic potentiation...
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