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Efficient bifunctional hydrogen electrocatalysis, encompassing both hydrogen evolution reaction (HER) and hydrogen oxidation reaction (HOR), is of paramount significance in advancing hydrogen‐based societies. While non‐precious‐metal‐based catalysts, particularly those based on nickel (Ni), are essential for alkaline HER/HOR, their intrinsic catalytic activity often falls short of expectations. Herein,...
Electrochemical water splitting in acidic media is one of the most promising hydrogen production technologies, yet its practical applications in proton exchange membrane (PEM) water electrolyzers are limited by the anodic oxygen evolution reaction (OER). Iridium (Ir)‐based materials are considered as the state‐of‐the‐art catalysts for acidic OER due to their good stability under harsh acidic conditions...
Sliding‐freestanding triboelectric nanogenerators (SF‐TENGs) are desirable for application in wearable power sources; however, improving their durability is the primary challenge. Meanwhile, few studies focus on enhancing the service life of tribo‐materials, especially from an anti‐friction perspective during dry operation. Herein, for the first time, a surface‐textured film with self‐lubricating...
Confined 1T‐VSe2 Ferromagnetic Nanoparticles
In article number 2300122, Cailei Yuan, Shouguo Wang, and co‐workers report confined 1T‐VSe2 ferromagnetic nanoparticles in amorphous carbon matrix for external magnetic fields assisted highly efficient oxygen evolution reaction (OER). Benefiting from the confined structure and the high‐efficient spin‐related OER kinetics under external magnetic fields,...
As a clean and effective approach, the introduction of external magnetic fields to improve the performance of catalysts has attracted extensive attention. Owing to its room‐temperature ferromagnetism, chemical stability, and earth abundance, VSe2 is expected to be a promising and cost‐effective ferromagnetic electrocatalyst for the accomplishment of high‐efficient spin‐related OER kinetics. In this...
Three‐dimensional (3D) structures constructed via coordination‐driven self‐assemblies have recently garnered increasing attention due to the challenges in structural design and potential applications. In particular, developing new strategy for the convenient and precise self‐assemblies of 3D supramolecular structures is of utmost interest. Introducing the concept of self‐coordination ligands, herein...
Versatile electrocatalysis at higher current densities for natural seawater splitting to produce hydrogen demands active and robust catalysts to overcome the severe chloride corrosion, competing chlorine evolution, and catalyst poisoning. Hereto, the core‐shell‐structured heterostructures composed of amorphous NiFe hydroxide layer capped Ni3S2 nanopyramids which are directly grown on nickel foam skeleton...
Over the past decade, stem cell‐ and tumor‐derived organoids are the most promising models in developmental biology and disease modeling, respectively. The matrix is one of three main elements in the construction of an organoid and the most important module of its extracellular microenvironment. However, the source of the currently available commercial matrix, Matrigel, limits the application of organoids...
Li||NMC811 battery, with lithium‐metal (high specific capacity and low redox potential) as anode and LiNi0.8Co0.1Mn0.1O2 (NMC811) as cathode, has been widely accepted to be a good candidate as one of the high‐energy‐density batteries. However, its cyclability needs improvement to fulfill the requirement for its future commercial use, especially under practical conditions. Electrolyte plays a key role...
Herein, for the first time, a pre‐intercalated non‐metal ion (NH4+) with rich oxygen vacancies stabilized tunnel WO3 is proposed as a new intercalation anode to construct Zn‐metal‐free rocking‐chair ZIBs. With the ethylene glycol additive in the aqueous electrolyte, the Zn2+ solvation structure can be regulated and the side reaction of hydrogen evolution can also be suppressed. Owing to the integrated...
Heterogeneous electrocatalysis typically depends on the surface electronic states of active sites. Modulating the surface charge state of an electrocatalysts can be employed to improve performance. Among all the investigated materials, nickel (Ni)‐based catalysts are the only non‐noble‐metal‐based alternatives for both hydrogen oxidation and evolution reactions (HOR and HER) in alkaline electrolyte,...
Dye aggregates have attracted a great deal of attention due to their widespread applications in organic light‐emitting devices, light‐harvesting systems, etc. However, the strategies to precisely control chromophores with specific spatial arrangements still remain a great challenge. In this work, a series of double‐ and triple‐decker supramolecular complexes are successfully constructed by coordination‐driven...
White‐light emitting elastomers (WLEEs) based on stimuli‐responsive aggregation‐induced emission (AIE) and regulated Förster resonance energy transfer (FRET) have aroused increasing attention due to the demands for wearable optoelectronic devices. Herein, the blue and orange AIEgens with different environmental sensitivities are synthesized and then encapsulated on both sides of nanofibers via side‐by‐side...
Developing cost‐efficient multifunctional electrocatalysts is highly critical for the integrated electrochemical energy‐conversion systems such as water electrolysis based on hydrogen/oxygen evolution reactions (HER/OER) and metal‐air batteries based on OER/oxygen reduction reactions (ORR). The core–shell structured materials with transition metal phosphide as the core and nitrogen‐doped carbon (NC)...
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