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Uniformly depositing a thin layer of functional constituents on porous foam is attractive to realize their concentrated interfacial application. Here, a simple but robust polyvinyl alcohol (PVA)‐mediated evaporation drying strategy to achieve uniform surface deposition on melamine foam (MF) is introduced. Solutes can be accumulated homogeneously to the surface periphery of MF due to the enhanced coffee‐ring...
Zinc‐Ion Batteries
In article number 2206634, Liping Wang, Jian Liu and co‐workers study the texture direction's impact on Zn metal anode and show that unidirectional texture patterns with an average depth of two microns can significantly improve the Zn reversibility. Two Zn deposition behaviors of metallic, dense “2D spreading” vs. dark, mossy‐like “3D growing” are observed alongside H2 evolution...
Understanding zinc (Zn) deposition behavior and improving Zn stripping and plating reversibility are significant in developing practical aqueous Zn ion batteries (AZIBs). Zn metal is abundant, cost‐effective, and intrinsically safe compared with Li. However, their similar inhomogeneous growth regime harms their practicality. This work reports a facile, easily scalable, but effective method to develop...
Extracellular outer‐membrane vesicles (OMVs) are attractive for use as drug nanocarriers, because of their high biocompatibility and ability to enter cells. However, widespread use is hampered by low yields. Here, a high‐yield method for magnetic harvesting of OMVs from Escherichia coli is described. To this end, E. coli are grown in the presence of magnetic iron‐oxide nanoparticles (MNPs). Uptake...
As a typical perovskite‐type crystal, polyhedral strontium titanate (SrTiO3) has shown anisotropic charge transport behavior in recent studies, however, the carrier transportation and transition of which has not been explained very clearly. This work present the existence of Sr and O divacancies in the novel rhombicuboctahedron SrTiO3 micro/nano particles (Sr1−xTiO3−x/TiO2−x) with exposing (100),...
Co2+ Photooxidation
Multiple crystal surface exposure gives SrTiO3 micro/nano crystal better photocatalytic performance. In addition to the exposed crystal surface, the vacancy is vitally important. In article number 2202659, Li‐zhu Wu, Dongping Duan, and co‐workers investigate the dynamic formation mechanism of atomic vacancies of SrTiO3 crystal deeply, and more importantly, the Sr‐O di‐vacancies...
Strong adsorption and catalysis for lithium polysulfides (LiPSs) are critical toward the electrochemical stability of Li‐S batteries. Herein, a hollow sandwiched nanoparticle is put forward to enhance the adsorption‐catalysis‐conversion dynamic of sulfur species. The outer ultrathin Ni(OH)2 nanosheets not only confine LiPSs via both physical encapsulation and chemical adsorption, but also promote...
Rechargeable zinc batteries (RZBs) have proved to be promising candidates as an alternative to lithium‐ion batteries due to their low cost, inherent safety, and environmentally benign features. While designing cost‐effective electrolyte systems with excellent compatibility with electrode materials, high energy/power density as well as long life‐span challenge their further application as grid‐scale...
The emerging potassium‐tellurium (K‐Te) battery system is expected to realize fast reaction kinetics and excellent rate performance due to the exceptional electrical conductivity of Te. However, there has been a lack of fundamental knowledge about this new K‐Te system, including the reaction mechanism and cathode structure design. Herein, a two‐step reaction pathway from Te to K2Te3 and ultimately...
The potassium‐ion battery (PIB) is an emerging energy storage technology due to its potential low cost and reasonably high energy density. However, PIB suffers from severe potassium (K) dendrites growth and even short circuiting caused by the high reactivity of K metal. To address these challenges, this work develops a robust composite gel polymer electrolyte (CGPE), named poly(vinylidene fluoride‐hexafluoropropylene)...
Potassium Metal Anodes
In article number 2107186, Jian Liu and co‐workers design a robust composite gel polymer electrolyte to achieve a long life of over 1,200 h for symmetrical potassium (K) cells. The remarkable stability can be attributed to the suppressed K dendrite growth, enhanced structural integrity, and electrochemical stability by polyacrylonitrile nanofibers.
Photocatalysis offers a sustainable strategy for hydrogen peroxide (H2O2) production, which is an essential oxidant and emerging energy carrier in modern chemical industry. The development of polymer‐based photocatalysts to produce H2O2 has great potential but is limited by lower efficiency due to the limitation of light utilization and the low charge separation efficiency. Herein, a series of monodispersed...
Herein, a paper‐based in vitro diagnostic device (IVD) is developed via inkjet printing of de novo engineered, boronic acid‐rich metal–organic frameworks (BMOFs). The newly developed BMOFs simultaneously possess crystalline and amorphous structure, mesopore size, large surface area, and retain a high level of boronic acid integration. After printing the BMOFs on the filter paper, the BMOF‐printed...
Nitrogen‐doped nanocarbons are widely used as supports for metal‐heterogeneous catalytic conversions. When nitrogen‐doped nanocarbon supports are used to disperse metallic nanoparticles (MNPs), the nitrogen dopant can enhance MNPs electron density to reach higher catalytic activity and promote MNPs stability through anchoring effects. However, the precise identification of active nitrogen species...
Biocatalysts immobilization with nanomaterials has promoted the development of biocatalysis significantly and made it an indispensable part of catalysis industries nowadays. Metal–organic frameworks (MOFs), constructed from organic linkers and metal ions or clusters, have raised significant interests for biocatalysts immobilization in recent years. The diversity of building units, molecular‐scale...
Water splitting to H2 by photocatalysis remains an effective strategy to alleviate the energy crisis. Unfortunately, single‐component photocatalyst still suffers from sluggish reaction kinetics. In this work, a noble‐metal free photocatalytic system of nitrogen‐doped carbon@Co embedded in carbon nanotubes (NC@Co‐NCT)/cadmium sulfide (CdS) is fabricated by coupling CdS nanorods with the metal–organic...
Fischer‐Tropsch synthesis (FTS) is an effective route to produce olefins, gasoline, diesel, and oxygenates from syngas (CO + H2). However, it still remains a challenge for regulating the product distribution of FTS. Here, a series of Co/C sub‐microreactors with precise designed nanoarchitectures are synthesized for selective syngas conversion. Through a combination of surface protection‐assisted etching...
The photocatalytic efficiency of polymeric carbon nitride is hampered by high carrier recombination rate and low charge transfer. Herein, these issues are addressed by constructing 1D strip‐like carbon nitride with a large π‐electron conjugated system from carbon‐doping, realizing the synchronization control of its electronic structure and morphology. Nicotinic acid, a monomer with the carboxyl group...
Heterogeneous hydrogenation reactions are of great importance for chemical upgrading and synthesis, but still face the challenges of controlling selectivity and long‐term stability. To improve the catalytic performance, many hydrogenation reactions utilize special yolk/core–shell nanoreactors (YCSNs) with unique architectures and advantageous properties. This work presents the developmental and technological...
Danqing Liu, Chongshen Guo, Bin Yang, and co‐workers report the plasmonic enhanced ROS activation on low‐work‐function tungsten nitride for near infrared (NIR)‐driven photocatalysis (article number 2004557). In the cover image, the atomic structure is the most reactive facet of (110). The background is constructed with water bubbles, while red line is the incident NIR light and the golden balls are...
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