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Transition metal‐based sulfides exhibit remarkable potential as electrocatalysts for oxygen evolution reaction (OER) due to the unique intrinsic structure and physicochemical characteristics. Nevertheless, currently available sulfide catalysts based on transition metals face a bottleneck in large‐scale commercial applications owing to their unsatisfactory stability. Here, the first fabrication of...
Polymeric Nanoparticles
In article number 2300801, Liang‐Yin Chu, Wei Wang, and co‐workers develop a spontaneous confined nanoemulsification strategy to facilely fabricate sub‐10 nm uniform polymeric nanoparticles by template synthesis of nanoemulsions. The strategy employs a self‐confined reaction with highly accumulated surfactants in chemically‐active droplets to achieve enhanced molecular‐level...
Sub‐10 nm nanoparticles are known to exhibit extraordinary size‐dependent properties for wide applications. Many approaches have been developed for synthesizing sub‐10 nm inorganic nanoparticles, but the fabrication of sub‐10 nm polymeric nanoparticles is still challenging. Here, a scalable, spontaneous confined nanoemulsification strategy that produces uniform sub‐10 nm nanodroplets for template...
Photocatalytic CO2 reduction is severely limited by the rapid recombination of photo‐generated charges and insufficient reactive sites. Creating electric field and defects are effective strategies to inhibit charge recombination and enrich catalytic sites, respectively. Herein, a coupled strategy of ferroelectric poling and cationic vacancy is developed to achieve high‐performance CO2 photoreduction...
Given the electronegativity and bonding environment of halogen elements, halogenation (i.e., fluorination, chlorination, bromination, and iodination) serves as a versatile strategy for chemical modifications of materials. The combination of halogens and 2D materials has triggered extensive interests since the first report on graphene fluorination in 2008. Subsequently, scholars consistently conduct...
Recently, 2D materials are in great demand for various applications such as optical devices, supercapacitors, sensors, and biomedicine. MXenes as a kind of novel 2D material have attracted considerable research interest due to their outstanding mechanical, thermal, electrical, and optical properties. Especially, the excellent nonlinear optical response enables them to be potential candidates for the...
MXenes as a kind of novel 2D transition metal carbon and/or nitrogen materials are commonly prepared by etching A‐group elements (mostly groups 13 or 14) from MAX phases. Owing to the excellent optical properties, MXenes have been widely used to realize ultrafast pulses in different lasers. In article number 2006054, Jiebo Li, Han Zhang, and co‐workers review the state of the art of MXenes, where...
The precise control of the ice crystal growth during a freezing process is of essential importance for achieving porous cryogels with desired architectures. The present work reports a systematic study on the achievement of multi‐structural cryogels from a binary dispersion containing 50 wt% 2,2,6,6‐tetramethylpiperidin‐1‐oxyl, radical‐mediated oxidized cellulose nanofibers (TOCNs), and 50 wt% graphene...
Due to the ultrathin thickness and dangling‐bond‐free surface, 2D materials have been regarded as promising candidates for future nanoelectronics. In recent years, group‐VI elemental 2D materials have been rediscovered and found superior in electrical properties (e.g., high carrier mobility, high photoconductivity, and thermoelectric response). The outstanding semiconducting properties of group‐VI...
Aerogels are one of the most popular composite reinforcement materials because of their high porosity and their continuous and homogeneous network. Most aerogels are isotropic, thus leading to isotropic composites when they are used as fillers. This fundamentally limits their applications in areas where anisotropy is needed. Here, an anisotropic microhoneycomb cellulose nanofiber‐ (CellF)‐carbon nanotube...
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