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Metal phase molybdenum disulfide (1T‐MoS2) is considered a promising electrocatalyst for hydrogen evolution reaction (HER) due to its activated basal and superior electrical conductivity. Here, a one‐step solvothermal route is developed to prepare 1T‐MoS2 with expanded layer spacing through the derivatization of a Mo‐based organic framework (Mo‐MOFs). Benefiting from N,N‐dimethylformamide oxide as...
Electrochemical activation strategy is very effective to improve the intrinsic catalytic activity of metal phosphate toward the sluggish oxygen evolution reaction (OER) for water electrolysis. However, it is still challenging to operando trace the activated reconstruction and corresponding electrocatalytic dynamic mechanisms. Herein, a constant voltage activation strategy is adopted to in situ activate...
DNA‐based nanodevices equipped with localized modules have been promising probes for biomarker detection. Such devices heavily rely on the intramolecular hybridization reaction. However, there is a lack of mechanistic insights into this reaction that limits the sensing speed and sensitivity. A coarse‐grained model is utilized to simulate the intramolecular hybridization of localized DNA circuits (LDCs)...
Seawater batteries are unique energy storage systems for sustainable renewable energy storage by directly utilizing seawater as a source for converting electrical energy and chemical energy. This technology is a sustainable and cost‐effective alternative to lithium‐ion batteries, benefitting from seawater‐abundant sodium as the charge‐transfer ions. Research has significantly improved and revised...
Li3V2(PO4)3 (LVP) is a promising cathode material for lithium‐ion batteries, especially when used in a wide temperature range, due to its high intrinsic ionic mobility and theoretical capacity. Herein, Ru‐ and Cl‐codoped Li3V2(PO4)3 (LVP‐Rux‐Cl3x) coated with/without a nitrogen‐doped carbon (NC) layer are synthesized. Among them, the optimized sample (LVP‐Ru0.05‐Cl0.15@NC) delivers remarkable performances...
With the rapid advancements of portable and wearable equipment, high‐efficiency electromagnetic interference (EMI) shielding materials are highly entailed to eliminate radiated electromagnetic pollution. Herein, by assembling hexagonal SrFe12O19 flakes into a Ti3C2Tx MXene/MWCNT substrate, a magnetized Ti3C2Tx‐based film is successfully fabricated by a facile filtration approach. Carbon nanotubes...
Introducing heteroatoms into atomically dispersed Fe–N4 sites with symmetric electron distribution can adjust the imperfect oxygenated adsorption‐activation and promote oxygen reduction reaction (ORR) activity. However, the relevant design synthesis and deeply understanding the electrocatalytic mechanism of such an asymmetric structure by introducing Fe–C coordination remains challenging. Herein,...
2D heterostructures provide a competitive platform to tailor electrical property through control of layer structure and constituents. However, despite the diverse integration of 2D materials and their application flexibility, tailoring synergistic interlayer interactions between 2D materials that form electronically coupled heterostructures remains a grand challenge. Here, the rational design and...
Manipulating catalytic active sites and reaction kinetics in alkaline media is crucial for rationally designing mighty water‐splitting electrocatalysts with high efficiency. Herein, the coupling between oxygen vacancies and interface engineering is highlighted to fabricate a novel amorphous/crystalline CrOx‐Ni3N heterostructure grown on Ni foam for accelerating the alkaline hydrogen evolution reaction...
Designing a synthesis of ultra‐small Ni‐based nanomaterials with high intrinsic activity and stability in alkaline hydrogen evolution reaction (HER) is a major challenge. Herein, a series of noble metal doped ultra‐small size (4 nm) M‐Ni/NiO nanoparticles supported on CNT are rationally designed by a solvent‐free microwave reduction method that is fast (60 s), simple, includes no surfactants, extensive...
Phase engineering is a promising but challenging approach to construct PtFe‐based catalysts with efficient hydrogen evolution reaction (HER) performance. Herein, the authors successfully synthesize PtFe nanofoams with face center cubic (fcc) phase, with simple cubic crystalline (scc) phase and with the mixture phases of fcc and scc phases (PtFe‐mix) by hydrogen‐assisted calcination for the first time...
Searching for Pt‐like activity, stable and economic electrocatalysts that can function at various pH values for the hydrogen evolution reaction (HER) is under increasing interest for the scientific community as H2 is a very promising energy carrier with great potential development value for renewable energy conversion. Herein, a unique self‐supported heterostructure of RuO2‐RuP2/Ru on the N, P co‐doped...
Emerging Fe bonded with heteroatom P in carbon matrix (FePC) holds great promise for electrochemical catalysis, but the design of highly active and cost‐efficient FePC structure for the electrocatalytic CO2 reduction reaction (CO2RR) and aqueous ZnCO2 batteries (ZCBs) is still challenging. Herein, polyhedron‐shaped bifunctional electrocatalysts, FeP nanocrystals anchored in N‐doped carbon polyhedrons...
There are still great challenges to prepare high‐efficiency Ru‐based catalysts that are superior to Pt/C under acidic conditions, especially under high current conditions. In this work, a series of surfactant‐free noble metal doped Ru/CNT (M‐Ru/CNT, M = Pt, Rh, Pd, Ir, CNT stands for carbon nanotube) are prepared by microwave reduction method in 1 minute with ≈3–3.5 nm in size for the first time....
Hierarchical hollow structure with unique interfacial properties holds great potential for microwave absorption (MA). Ti3C2Tx MXene has been a hot topic due to rich interface structure, abundant defects, and functional groups. However, its overhigh permittivity and poor aggregation‐resistance limit the further application. Herein, a hierarchical MXene‐based hollow microsphere is prepared via a facile...
Many enveloped viruses utilize endocytic pathways and vesicle trafficking to infect host cells, where the acidification of virus‐containing endosomes triggers the virus‐endosome fusion events. Therefore, simultaneous correlation of intracellular location, local pH, and individual virus dynamics is important for gaining insight into viral infection mechanisms. Here, an imaging approach is developed...
Zinc–air batteries (ZABs) exhibit high energy density as well as flexibility, safety, and portability, thereby fulfilling the requirements of power batteries and consumer batteries. However, the limited efficiency and stability are still the significant challenge. Oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) are two crucial cathode reactions in ZABs. Development of bifunctional...
Exploring new electrochemiluminescence (ECL) luminophores to construct high‐efficiency sensing systems is always a hot direction for developing ECL sensors. Compared with other luminophores, metal–organic frameworks (MOFs) exhibit high mass transfer ability for accelerating the reactivity in its pore channels, which is conducive to improving the performance of ECL sensors. In this work, La3+‐BTC MOFs...
Proton exchange membrane fuel cells (PEMFCs) are promising devices for clean power generation in fuel cell electric vehicles applications. The further request of high‐efficiency and cost competitive technology make high‐temperature proton exchange membranes utilizing phosphoric acid‐doped polybenzimidazole be favored because they can work well up to 180 °C without extra humidifier. However, they face...
Phototheranostics based on luminogens with aggregation‐induced emission (AIE) characteristics is captivating increasing research interest nowadays. However, AIE luminogens are inherently featured by inferior absorption coefficients (ε) resulting from the distorted molecular geometry. Besides, molecular innovation of long‐wavelength light‐excitable AIE luminogens with highly efficient phototheranostic...
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