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Humidity is one of the most important indicators affecting human health. Here, a pair of covalent organic frameworks (COFs) of positional isomers (p‐COF and o‐COF) for indoor humidity regulation is reported. Although p‐COF and o‐COF have the same sql topology and pore size, they exhibit different water adsorption behaviors due to the subtle differences in water adsorption sites. Particularly, o‐COF...
Since the linkages structured in covalent organic frameworks (COFs) usually impact the charge transfer behavior during photocatalytic hydrogen evolution reaction (pc‐HER), linkage dependence on charge transfer kinetics should be further claimed. Herein, COFs with N‐based linkages and pyrene‐based building nodes are constructed to enable us to obtain new clues about the charge transfer behavior and...
Graphdiyne (GDY) is a fascinating graphene‐like 2D carbon allotrope comprising sp and sp2 hybridized carbon atoms. However, GDY materials synthesized by solution‐phase methods normally come as thick and porous films or amorphous powders with severely disordered stacking modes that obstruct macroscopic applications. Here, a facile and scalable synthesis of ultrathin holey graphdiyne (HGDY) nanosheets...
The sustainable development of functional energy‐saving building materials is important for reducing thermal energy consumption and promoting natural indoor lighting. Phase‐change materials embedded in wood‐based materials are candidates for thermal energy storage. However, the renewable resource content is usually insufficient, the energy storage and mechanical properties are poor, and the sustainability...
A joint theoretical and experimental study is reported to systematically explore over a library of transition metal‐silicon intermetallics for understanding silicon‐controlled active site motifs and discovering hydrogen‐evolving electrocatalysts. On the one hand, every low‐index surface termination of 115 transition metal (M)‐silicon (Si) intermetallics is enumerated, followed by cataloging of stable...
Active Site Engineering
In article number 2107371, Xiaoxin Zou and co‐workers investigate a library of transition metal‐silicon (Si) intermetallic catalysts by integrating high‐throughput theoretical prediction and experimental validation. The cover design emphasizes the ability of Si to modify the arrangements of surface atoms and change adsorption sites of hydrogen intermediate for controlling catalytic...
Since the advent of graphene ushered the era of 2D materials, many forms of hydrogenated graphene have been reported, exhibiting diverse properties ranging from a tunable bandgap to ferromagnetic ordering. Patterned hydrogenated graphene with micron‐scale patterns has been fabricated by lithographic means. Here, successful millimeter‐scale synthesis of an intrinsically honeycomb‐patterned form of...
Exosomes, known as nanometer‐sized vesicles (30–200 nm), are secreted by many types of cells. Cancer‐derived exosomes have great potential to be biomarkers for early clinical diagnosis and evaluation of cancer therapeutic efficacy. Conventional detection methods are limited to low sensitivity and reproducibility. There are hundreds of papers published with different detection methods in recent years...
Protein therapy has the potential to revolutionize medicine, but the delivery of multiple proteins is challenging because it requires the development of a strategy that enables different proteins to be combined together and transported not only into cells, but also to the desired cell compartments, such as the nucleus. Here, an efficient intranuclear protein delivery nanoplatform based on modified...
Iron sulfides with high theoretical capacity and low cost have attracted extensive attention as anode materials for sodium ion batteries. However, the inferior electrical conductivity and devastating volume change and interface instability have largely hindered their practical electrochemical properties. Here, ultrathin amorphous TiO2 layer is constructed on the surface of a metal–organic framework...
Minimization of defects and ion migration in organic–inorganic lead halide perovskite films is desirable for obtaining photovoltaic devices with high power conversion efficiency (PCE) and long‐term stability. However, achieving this target is still a challenge due to the lack of efficient multifunctional passivators. Herein, to address this issue, n‐type goethite (FeOOH) quantum dots (QDs) are introduced...
Extremely soft and thin electrodes with high skin conformability have potential applications in wearable devices for personal healthcare. Here, a submicrometer thick, highly robust, and conformable nanonetwork epidermal electrode (NEE) is reported. Electrospinning of polyamide nanofibers and electrospraying of silver nanowires are simultaneously performed to form a homogeneously convoluted network...
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