1,881 Result(s)
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Nanotechnology
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Article
Nitrogen and fluorine co-doped graphene for ultra-stable lithium metal anodes
The heteroatom do** strategies have been utilized to effectively improve the performance of the carbon-based hosts, such as graphene, for lithium (Li) metal in high energy density lithium metal batteries. Ho...
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Open AccessFabrication of Microstructure Arrays via Localized Electrochemical Deposition
Localized electrochemical deposition microadditive manufacturing (AM) (LECD-µAM) technology represents a nontraditional manufacturing method applied for the layer-by-layer fabrication of metal microstructures ...
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An Exo III-powered closed-loop DNA circuit architecture for biosensing/imaging
With their regulated Boolean logic operations in vitro and in vivo, DNA logic circuits have shown great promise for target recognition and disease diagnosis. However, significant obstacles must be overcome to ...
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Evaluation of the Toxicity of Titanium Dioxide Nanoparticles Administered by Oral Gavage to Sprague–Dawley Rats on 94 Days of Repeated Dosing
By observing the possible toxic reactions and deaths of titanium dioxide nanoparticles given by oral gavage to Sprague–Dawley (SD) rats at 2, 10, and 50 mg/kg once a day for 94 consecutive days due to accumula...
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Prediction Model for Silicon Content of Hot Metal Based on PSO-TCN
The silicon content of hot metal, which is one of the important indexes characterizing the blast furnace temperature, reflects the blast furnace condition, iron output, and energy consumption intuitively. For ...
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Plasmon Hybridization of Au Hollow Nanocone Array for SERS Sensing
Surface-enhanced Raman scattering (SERS) spectroscopy plays a vital role in highly sensitive fingerprint detections and non-invasive point-of-care diagnostics. However, elaborate fabrication of a compact nanos...
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Microstructure and Mechanical Property of the Large Cross-Sectioned Mg–Gd–Y–Zn–Zr Alloy Produced by Small Extrusion Ratio
In this work, the microstructure and mechanical properties of large cross-sectioned Mg–9Gd–3Y–1.2Zn–0.5Zr (VWZ931) samples produced by the small extrusion ratio has been investigated. The as-extruded VWZ931 sa...
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Geometric edge effect on the interface of Au/CeO2 nanocatalysts for CO oxidation
The oxide supports play a crucial role in anchoring and promoting the active metal species by geometric confinement and chemical interaction. The design and synthesis of the well-defined oxide support with spe...
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Wettability and Interfacial Phenomena Between Silicon and Sulfur-Bearing Steels and Solid CaO Substrates
The wettability between a Si–S steel with 0.2 wt pct sulfur and 0~3.5 wt pct silicon and a CaO substrate was investigated using a sessile drop method at 1550 °C. The equilibrium contact angle between the Si–S ...
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A stepwise-responsive editor integrated with three copper ions for the treatment of oral squamous cell carcinoma
Cuprotosis, a new type of cell death, provides great opportunities for the treatment of oral squamous cell carcinoma, as nanocarriers of copper ions can induce cuprotosis and immunogenic death. Here, we studie...
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Polyzwitterionic cross-linked double network hydrogel electrolyte enabling high-stable Zn anode
Zn metal anode suffers from dendrite issues and passive byproducts, which severely plagues the practical application of aqueous Zn metal batteries. Herein, a polyzwitterionic cross-linked double network hydrog...
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Primitive functional groups directed distinct photocatalytic performance of imine-linked donor-acceptor covalent organic frameworks
The combination of donor-acceptor (D–A) structures presents a viable strategy for fabricating covalent organic frameworks (COFs) with exceptional photocatalytic performances. Nevertheless, the selection of fun...
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Low-temperature-pyrolysis preparation of nanostructured graphite towards rapid potassium storage with high initial Coulombic efficiency
Industrially prepared artificial graphite (AG) is attractive for potassium-ion batteries (PIBs), but its rate performance is poor and the production process is energy intensive, so develo** an efficient stra...
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Self-cleaning SERS sensor based on flexible Ni3S2/MoS2@Ag@PDMS composites for label-free multiplex volatile organic compounds detection
Flexible self-cleaning surface-enhanced Raman scattering (SERS) sensors are highly desirable for the detection of various environmental pollutants, including volatile organic compounds (VOCs). However, achievi...
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Revealing the Influential Mechanism of the Direct Current on Columnar-to-Equiaxed Transition in Directionally Solidified Al–15Sn–1Cu Alloy Under 10 T Magnetic Field
The effect of the direct current (DC) on the solidification structure in the directional solidification of Al–15Sn–1Cu alloy under 10 T magnetic field was investigated experimentally and numerically. The exper...
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High-Temperature Stability of Mg–1Al–12Y Alloy Containing LPSO Phase and Mechanism of Its Portevin–Le Chatelier (PLC) Effect
In this study, the high-temperature stability and the generation mechanism of the Portevin–Le Chatelier (PLC) effect in solid-solution Mg–1Al–12Y alloy with different heat treatment processes were investigated...
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Mobile iodides capture for highly photolysis- and reverse-bias-stable perovskite solar cells
For halide perovskites that are susceptible to photolysis and ion migration, iodide-related defects, such as iodine (I2) and iodine vacancies, are inevitable. Even a small number of these defects can trigger self...
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Open AccessHarnessing instability for work hardening in multi-principal element alloys
The strength–ductility trade-off has long been a Gordian knot in conventional metallic structural materials and it is no exception in multi-principal element alloys. In particular, at ultrahigh yield strengths...
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The sulfur–nitrogen co-doped porous carbon material derived from biomass was employed as the anode of a lithium–sulfur battery
The raw material selected for this research was Brazil chestnut shells (BCs), which were utilized to gain porous carbon as a positive electrode for lithium–sulfur batteries (LSBs). The effects of N/S co-doped ...
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A Data-Driven Approach for the Fast Prediction of Macrosegregation
Macrosegregation is of great importance to study due to its negative impact on the quality of casting. Although numerical models can predict macrosegregation during alloy solidification, solving the partial di...
