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The development of catalysts with abundant active interfaces for superior low‐temperature catalytic CO oxidation is critical to meet increasingly rigorous emission requirements, yet still challenging. Herein, this work reports a PtCo/CoOx/Al2O3 catalyst with PtCo clusters and enriched Pt─O─Co interfaces induced by hydrogen spillover from the Pt sites and self‐oxidation process in air, exhibiting excellent...
To solve surface carrier recombination and sluggish water oxidation kinetics of hematite (α‐Fe2O3) photoanodes, herein, an attractive surface modification strategy is developed to successively deposit ultrathin CoOx overlayer and Ni single atoms on titanium (Ti)‐doped α‐Fe2O3 (Ti:Fe2O3) nanorods through a two‐step atomic layer deposition (ALD) and photodeposition process. The collaborative decoration...
Intercalation of organic molecules into the van der Waals gaps of layered materials allows for the preparation of organic/inorganic superlattices for varying promising applications. Herein, the preparation of a series of dye molecule/MoO3 organic/inorganic superlattice nanoparticles by aqueous intercalation of several dye molecules into layered MoO3 for fluorescence imaging‐guided catalytic therapy...
The electrochemical carbon dioxide reduction reaction (CO2RR) provides a sustainable strategy to relieve global warming and achieve carbon neutrality. However, the practical application of CO2RR is still limited by the poor selectivity and low current density. Here, the surface molecular functionalization of unusual phase metal nanomaterials for high‐performance CO2RR under industry‐relevant current...
In article number 2007486, Liang Cheng, Chaoliang Tan, and co‐workers report the activation of the near infrared absorption of layered metal oxide nanomaterials via a simple lithium treatment‐induced structural engineering, making them promising as robust biodegradable nanoagents for photothermal cancer therapy in the second near infrared window.
Layered metal oxides including MoO3 and WO3 have been widely explored for biological applications owing to their excellent biocompatibility, low toxicity, and easy preparation. However, they normally exhibit weak or negligible near‐infrared (NIR) absorption and thus are inefficient for photo‐induced biomedical applications. Herein, the structural engineering of layered MoO3 and WO3 nanostructures...
Clear recognition and rational construction of suitable active center for specific reaction is always of great significance in designing highly efficient catalysts. Herein, a dual‐active‐site copper catalyst (DAS‐Cu) containing both CuN3 and CuN4 sites is reported. Such catalysts show extremely high catalytic performance (yield: up to 97%) toward oxyphosphorylation of alkenes, while catalysts with...
2D layered photodetectors have been widely researched for intriguing optoelectronic properties but their application fields are limited by the bandgap. Extending the detection waveband can significantly enrich functionalities and applications of photodetectors. For example, after breaking through bandgap limitation, extrinsic Si photodetectors are used for short‐wavelength infrared or even long‐wavelength...
The cover shows the extrinsic photoconduction induced Ge‐based polarization‐sensitive photodetector. The structure of the Ge‐based photodetector is shown in the upper left corner. The amplified crystal structure of GeSe with several Ge vacancies is shown in the middle. Additionally, the image of excess carriers being excited by a polarized light is shown in the lower right corner. In article number...
Ethanol is preferred to be oxidized into CO2 for the construction of a high‐performance direct ethanol fuel cell since this complete ethanol oxidation reaction (EOR) transfers 12 electrons. However, this EOR is sluggish and has the low activity as well as poor selectivity. To promote such a favorable EOR, more exactly the cleavage selectivity of CC bonds in ethanol, phosphorus‐doped silver‐core‐and‐Pd‐shell...
Covalent organic frameworks (COFs) have emerged as a fascinating crystalline porous material and are widely used in the field of catalysis. However, developing simple approaches to fabricate conjugated COFs with specific functional groups remains a significant challenge. In this study, the construction of defective COF‐LZU1 with Lewis acid sites embedded into the frameworks is fulfilled by a facile...
Palladium diselenide (PdSe2) is an emerging 2D layered material with anisotropic optical/electrical properties, extra‐high carrier mobility, excellent air stability, etc. So far, ultrathin PdSe2 is mainly achieved via mechanical exfoliation from its bulk counterpart, and the direct synthesis is still challenging. Herein, the synthesis of ultrathin 2D PdSe2 on conductive Au foil substrates via a facile...
Although transition metal dichalcogenides (TMDs) are attractive for the next‐generation nanoelectronic era due to their unique optoelectronic and electronic properties, carrier scattering during the transmission of electronic devices, and the distinct contact barrier between the metal and the semiconductors, which is caused by inevitable defects in TMDs, remain formidable challenges. To address these...
In article number 1901791, Lin Han, Hong Liu, Lin Gu, and co‐workers present a facile and effective defects‐patching approach via nitrogen plasma doping for inevitable vacancies in transition metal dichalcogenides, which opens up new opportunities for the use of high‐performance 2D devices in practical electronic applications. In the cover, the five‐color stone in the hands of Nuwa refers to the nitrogen...
Transition metal carbide compound has been extensively investigated as a catalyst for hydrogenation, for example, due to its noble metal‐like properties. Herein a facile synthetic strategy is applied to control the thickness of atomic‐layer Pt clusters strongly anchored on N‐doped Mo2C nanorods (Pt/N‐Mo2C) and it is found that the Pt atomic layers modify Mo2C function as a high‐performance and robust...
3D all‐solid‐state thin film batteries (TFBs) are proposed as an attractive power solution for microelectronics. However, the challenge in fabricating self‐supported 3D cathodes constrains the progress in developing 3D TFBs. In this work, 3D LiMn2O4 (LMO) nanowall arrays are directly deposited on conductive substrates by magnetron sputtering via controlling the thin film growth mode. 3D TFBs based...
Lithium‐rich Li[Li1/6Fe1/6Ni1/6Mn1/2]O2 (0.4Li2MnO3‐0.6LiFe1/3Ni1/3Mn1/3O2, LFNMO) is a new member of the xLi2MnO3·(1 − x)LiMO2 family of high capacity–high voltage lithium‐ion battery (LIB) cathodes. Unfortunately, it suffers from the severe degradation during cycling both in terms of reversible capacity and operating voltage. Here, the corresponding degradation occurring in LFNMO at an atomic scale...
Heteroatom doping is regarded as a promising method to enhance the sodium storage performance of carbon materials. In this work, a sulfur‐enriched N‐doped multichannel hollow carbon nanofiber (denoted as S‐NCNF) film is prepared through electrospinning technology and heat treatment with sublimed sulfur as the flexible anode for sodium ion batteries (NIBs). The S‐NCNF film displays outstanding electrochemical...
Hierarchical metal nanostructures containing 1D nanobuilding blocks have stimulated great interest due to their abundant active sites for catalysis. Herein, hierarchical 4H/face‐centered cubic (fcc) Ru nanotubes (NTs) are synthesized by a hard template‐mediated method, in which 4H/fcc Au nanowires (NWs) serve as sacrificial templates which are then etched by copper ions (Cu2+) in dimethylformamide...
In article number 1800423, Ling Li, Ze Yu, Lin Gu, and co‐workers use ZIF‐8/ZIF‐67 with electrospinning to successfully fabricate Co‐Nx‐embedded 1D porous carbon nanofibers. The unique 1D structure, such as higher graphitization degree beneficial, hierarchical porosity, and highly dispersed CoNxC active sites, is beneficial for highly efficient electrochemical performance for oxygen reduction and...
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