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γ‐valerolactone (GVL) is a key value‐added chemical catalytically produced from levulinic acid (LA), an important biomass derivative platform chemical. Here an ultra‐efficient 3D Ru catalyst generated by in situ reduction of RuZnOx nanoboxes is reported; the catalyst features a well‐defined structure of highly dispersed in situ oxide‐derived Ru (IOD‐Ru) clusters (≈1 nm in size) spatially confined...
Microwave absorbers with high efficiency and mechanical robustness are urgently desired to cope with more complex and harsh application scenarios. However, manipulating the trade‐off between microwave absorption performance and mechanical properties is seldom realized in microwave absorbers. Here, a chemistry‐tailored charge dynamic engineering strategy is proposed for sparking hetero‐interfacial...
Interfacial Charge Dynamics
In article number 2306104, Xiaolong Jia and co‐workers clarified the charge dynamics mediated by the work function within the heterointerface. This understanding guides the proposal of a surface chemistry‐tailored strategy aimed at sparking hetero‐interfacial polarization between carbon fibers and ZnO nanowires. Consequently, the microwave attenuation ability is synergistically...
Metal single‐atom catalysts are promising in electrochemical CO2 reduction reaction (CO2RR). The pores and cavities of the supports can promote the exposure of active sites and mass transfer of reactants, hence improve their performance. Here, iron oxalate is added to ZIF‐8 and subsequently form hollow carbon nanocages during calcination. The formation mechanism of the hollow structure is studied...
Triggering reversible lattice oxygen redox (LOR) in oxide cathodes is a paradigmatic approach to overcome the capacity ceiling determined by orthodox transition‐metal (TM) redox. However, the LOR reactions in P2‐structured Na‐layered oxides are commonly accompanied by irreversible nonlattice oxygen redox (non‐LOR) and large local structural rearrangements, bringing about capacity/voltage fading and...
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...
The density and spatial distribution of substituted dopants affect the transition metal dichalcogenides (TMDCs) materials properties. Previous studies have demonstrated that the density of dopants in TMDCs increases with the amount of doping, and the phenomenon of doping concentration difference between the nucleation center and the edge is observed, but the spatial distribution law of doping atoms...
Field‐Effect Transistors
In article number 2207858, Huajie Chen, Zebing Zeng, Yuanyuan Hu, and co‐workers report a methodology of fabricating electrodes for semiconductor devices by van der Waals integration of doped organic semiconductor films (DOSCFs). The DOSCF electrodes are attractive due to their solution‐processability, mechanically flexibility, and interesting optoelectronic properties. The...
Electrodes are indispensable components in semiconductor devices, and now are mainly made from metals, which are convenient for use but not ideal for emerging technologies such as bioelectronics, flexible electronics, or transparent electronics. Here the methodology of fabricating novel electrodes for semiconductor devices using organic semiconductors (OSCs) is proposed and demonstrated. It is shown...
Chiral inorganic nanomaterials have shown promise as a potential means of combating bacteria due to their high levels of biocompatibility, easy surface modification, and excellent optical properties. In this study, a diverse range of chiral hierarchical nanomaterials are prepared from Co2+ and L/D‐Tartaric acid (Tar) ligands. By combining the ligands in different ratios, chiral Co superstructures...
The design of nanomaterials with grain orientation structure by crystal facet engineering is of great significance for boosting the catalytic ability and electrochemical properties, but the controllable synthesis is still a challenge. Here, TiN nanoflakes with exposed (001) facets are prepared using 2D Ti3C2 MXene as the initial reactant and applied as a bidirectional electrocatalyst for the reduction...
Bifunctional Catalysts
In article number 2201974, Yunqi Liu, Xuan Yang, Xiang Feng, Yuan Pan, and co‐workers propose an encapsulation‐adsorption‐pyrolysis strategy for constructing Co‐Te diatomic sites with special CoN3C1‐TeN1C3 coordination structure anchored in N‐doped carbon, as efficient bifunctional catalysts for synergistic electrocatalytic hydrogen evolution and oxygen reduction. This work...
A encapsulation–adsorption–pyrolysis strategy for the construction of atomically dispersed Co‐Te diatomic sites (DASs) that are anchored in N‐doped carbon is reported as an efficient bifunctional catalyst for electrocatalytic hydrogen evolution reaction (HER) and oxygen reduction reaction (ORR). The as‐constructed catalyst shows the stable CoN3C1‐TeN1C3 coordination structure before and after HER...
By virtue of the unprecedented ability of manipulating the optical parameters, metasurfaces open up a new avenue for realizing ultra‐compact image displays, e.g., nanoprinting on the surface and holographic displaying in the far‐field. The multifold integration of these two functions into a single metasurface can undoubtedly expand the functionality and increase the information capacity. In this study,...
Monolayer transition metal dichalcogenides (TMDCs) with high crystalline quality are important channel materials for next‐generation electronics. Researches on TMDCs have been accelerated by the development of chemical vapor deposition (CVD). However, antiparallel domains and twin grain boundaries (GBs) usually form in CVD synthesis due to the special threefold symmetry of TMDCs lattices. The existence...
Thermal management in Li‐ion batteries is critical for their safety, reliability, and performance. Understanding the thermal conductivity of the battery materials is crucial for controlling the temperature and temperature distribution in batteries. This work provides systemic quantitative measurements of the thermal conductivity of three important classes of solid electrolytes (SEs) over the temperature...
Nanoporous metal phosphonates are propelling the rapid development of emerging energy storage, catalysis, environmental intervention, and biology, the performances of which touch many fundamental aspects of portable electronics, convenient transportation, and sustainable energy conversion systems. Recent years have witnessed tremendous research breakthroughs in these fields in terms of the fascinating...
Interface engineering is promising but still challenging for developing highly efficient and stable non‐noble‐metal‐based electrocatalysts for water splitting. Herein, partially phosphidated core@shell Co@Co–P nanoparticles encapsulated in bamboo‐like N, P co‐doped carbon nanotubes (denoted as Part‐Ph Co@Co–P@NPCNTs) are prepared through a pyrolysis–oxidation–phosphidation strategy. In this structure,...
Exosomes are endosome‐derived vesicles enriched in body fluids such as urine, blood, and saliva. So far, they have been recognized as potential biomarkers for cancer diagnostics. However, the present single‐variate analysis of exosomes has greatly limited the accuracy and specificity of diagnoses. Besides, most diagnostic approaches focus on bulk analysis using lots of exosomes and tend to be less...
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