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Over the past decades, significant advances have been made in lithium‐ion batteries. However, further requirement on the electrochemical performance is still a powerful motivator to improve battery technology. The solid electrolyte interphase (SEI) is considered as a key component on negative electrode, having been proven to be crucial for the performance, even in safety of batteries. Although numerous...
Hemorrhage remains a critical challenge in various medical settings, necessitating the development of advanced hemostatic materials. Hemostatic hydrogels have emerged as promising solutions to address uncontrolled bleeding due to their unique properties, including biocompatibility, tunable physical characteristics, and exceptional hemostatic capabilities. In this review, a comprehensive overview of...
The rational design of hybrid nanocrystals structures facilitates electronic and energetic communication between different component, which can optimize their specific performance. In this study, an efficient approach for building intricate ZnO@h‐CoO nanocomposites and their derivatives is presented, based on a lattice‐match/mismatch mechanism. Due to the ultra‐low lattice mismatch between ZnO and...
DNA strand displacement reactions are vital for constructing intricate nucleic acid circuits, owing to their programmability and predictability. However, the scarcity of effective methods for eliminating circuit leakages has hampered the construction of circuits with increased complexity. Herein, a versatile strategy is developed that relies on a spatially controlled proximity split tweezer (PST)...
LiMn1‐yFeyPO4 (LMFP) is a significant and cost‐effective cathode material for Li‐ion batteries, with a higher working voltage than LiFePO4 (LFP) and improved safety features compared to layered oxide cathodes. However, its commercial application faces challenges due to a need for a synthesis process to overcome the low Li‐ion diffusion kinetics and complex phase transitions. Herein, a solid‐state...
Lithium‐Ion Batteries
In article number 2309629, Yingqiang Wu, Li Wang, Fengli Bei, Xiangming He, and co‐workers present a LiMnxFe1‐xPO4 solid‐state synthesis method using LiFePO4 and nano LiMn0.7Fe0.3PO4 that coexist at room temperature, happen at low sintered temperatures (300–600 °C) and complete at high sintered temperatures (700∼800 °C). Following sintering at high temperatures, LiMnxFe1‐xPO4...
Photodynamic therapy (PDT), as a means of locally and rapidly inducing adipocyte death via light illumination, in combination with adipose browning induction, a more gradual and widespread effect that could transform white adipose tissue into thermogenic adipose tissue, manifests a promising approach to combat obesity. Herein, adipose‐targeting ultra‐small hybrid nanoparticles (Pep‐PPIX‐Baic NPs)...
For supporting active metal, the cavity confinement and mass transfer facilitation lie not in one sack, a trade‐off between high activity and good stability of the catalyst is present. Porous organic cages (POCs) are expected to break the trade‐off when metal particles are properly loaded. Herein, three organic cages (CC3, RCC3, and FT‐RCC3) are employed to support Pd nanoclusters for catalytic hydrogenation...
Protein drugs hold promise in treating multiple complex diseases, including cancer. The priority of protein drug application is precise delivery of substantial bioactive protein into tumor site. Metal–organic‐framework (MOF) is widely considered as a promising carrier to encapsulate protein drug owing to the noncovalent interaction between carrier and protein. However, limited loading efficiency and...
The elaborate defect‐engineering of luminescent metal‐organic frameworks (MOFs) allows them with enhanced sensing performance. A modulator‐induced defect formation strategy is adopted in this paper, and the impact of the open‐metal sites on sensing process is rationalized. It is demonstrated that the defect level can be tuned to a remarkable extent by controlling the amount of modulator. When a particular...
Designing definite transition metal heterointerfaces is considered an effective strategy for the construction of efficient and robust oxygen evolution reaction (OER) electrocatalysts, but rather challenging. Herein, amorphous NiFe hydr(oxy)oxide nanosheet arrays (A‐NiFe HNSAs) are grown in situ on the surface of a self‐supporting Ni metal–organic frameworks (SNMs) electrode via a combination strategy...
Single‐atom catalysts are proven to be an effective strategy for suppressing shuttle effect at the source by accelerating the redox kinetics of intermediate polysulfides in lithium–sulfur (Li–S) batteries. However, only a few 3d transition metal single‐atom catalysts (Ti, Fe, Co, Ni) are currently applied for sulfur reduction/oxidation reactions (SRR/SOR), which remains challenging for screening new...
Nanoporous Materials
In article number 2300697, Li Sheng, Hong Xu, Cheng Wang, Xiangming He, and co‐workers provide a method (i.e. electrospinning) to convert sulfonated polymers into high‐performance lithium battery separators. The nanofibrous Nafion separator swelled in liquid electrolytes has in situ generated nanochannels, efficiently accelerating lithium ion transport.
Sulfonated polymers have long been used as proton‐conducting materials in fuel cells, and their ionic transport features are highly attractive for electrolytes in lithium‐ion/metal batteries (LIBs/LMBs). However, most studies are still based on a preconceived notion of using them directly as polymeric ionic carriers, which precludes exploring them as nanoporous media to construct efficient lithium...
NiFe‐based (oxy)hydroxides are the benchmark catalysts for the oxygen evolution reaction (OER) in alkaline medium, however, it is still challenging to control their structures and compositions. Herein, molybdates (NiFe(MoO4)x) are applied as unique precursors to synthesize ultrafine Mo modified NiFeOxHy (oxy)hydroxide nanosheet arrays. The electrochemical activation process enables the molybdate ions...
Characterization Methods
In article number 2302208, Aimin Du, Xiangming He, and co‐workers utilize theoretical knowledge of crystal structure, structural phase transition, and crystal field theory to provide insights into the chemical‐mechanical degradation failure process of Co‐free Ni‐rich cathode materials for lithium‐ion batteries. Additionally, the authors summarize the application of commonly...
Layered Cobalt (Co)‐free Nickel (Ni)‐rich cathode materials have attracted much attention due to their high energy density and low cost. Still, their further development is hampered by material instability caused by the chemical/mechanical degradation of the material. Although there are numerous doping and modification approaches to improve the stability of layered cathode materials, these approaches...
Two‐dimensional (2D) layered materials have been widely used as catalysts due to their high specific surface area, large fraction of uncoordinated surface atoms, and high charge carrier mobility. Moiré superlattice emerges in 2D layered materials with twist angle or lattice mismatch. By manipulating the moiré superlattice structure, 2D layered materials present modulated electronic band structure,...
Sonodynamic therapy (SDT) has attracted intensive attention, but is still hindered by low sonosensitization and non‐biodegradability of the traditional sonosensitizers. Herein, perovskite‐type manganese vanadate (MnVO3) sonosensitizers integrating high reactive oxide species (ROS) production efficiency and appropriate bio‐degradability are developed for enhanced SDT. Taking advantage of the intrinsic...
FeNC catalysts demonstrate remarkable activity and stability for the oxygen reduction reaction (ORR) in polymer electrolyte membrane fuel cells and Zn–air batteries (ZABs). The local coordination of Fe single atoms in FeNC catalysts strongly impacts ORR activity. Herein, FeNC catalysts containing Fe single atoms sites with FeN3, FeN4, and FeN5 coordinations are synthesized by carbonization of...
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