A5101605234- Electrocatalysts for Energy Conversion
- Advanced Photocatalysis Techniques
- Physics of Superconductivity and Magnetism
- Quantum and electron transport phenomena
- Advanced battery technologies research
- Fuel Cells and Related Materials
- Iron oxide chemistry and applications
- Solar-Powered Water Purification Methods
- Solar Thermal and Photovoltaic Systems
- 2D Materials and Applications
- Iron-based superconductors research
- Nanoplatforms for cancer theranostics
- Superconductivity in MgB2 and Alloys
- Topological Materials and Phenomena
- Molecular Sensors and Ion Detection
- ZnO doping and properties
- Advanced Thermoelectric Materials and Devices
- CO2 Reduction Techniques and Catalysts
- Magnetic and transport properties of perovskites and related materials
- Phase Change Materials Research
- Machine Learning in Materials Science
- Luminescence and Fluorescent Materials
- Surface and Thin Film Phenomena
- TiO2 Photocatalysis and Solar Cells
- Copper-based nanomaterials and applications
Northwest University
2020-2025
Nanjing University
2021-2024
Mudanjiang Medical University
2023
Beijing Graphene Institute
2021
Taiyuan University of Technology
2017-2018
Abstract As an emerging frontier, dual‐atom catalysts (DACs) have sparked broad interest in energy catalysis, however the undesired thermal atomic migration during synthesis process pose significant challenge enabling further applications. Herein, interfacial cladding strategy is reported to construct monodispersed metal sites (metal = Fe, Cu, or Ir), derived from dimer molecule functionalized metal‐organic frameworks. First, immobilized at surface of cubic ZIF‐8 by polydopamine, thus...
Simultaneously optimizing elementary steps, such as water dissociation, hydroxyl transferring, and hydrogen combination, is crucial yet challenging for achieving efficient evolution reaction (HER) in alkaline media. Herein, Ru single atom-doped WO2 nanoparticles with atomically dispersed Ru-W pair sites (Ru-W/WO2 -800) are developed using a crystalline lattice-confined strategy, aiming to gain HER. It found that Ru-W/WO2 -800 exhibits remarkable HER activity, characterized by low...
Electricity-powered C─C coupling of CO2 represents an attractive strategy for producing valuable commodity chemicals with renewable energy, but it is still challenging to gain high C2+ selectivity at current density. Here, a Sn1Cu single-atom alloy (SAA) reported isolated Sn atom embedded into the Cu lattice, as efficient ectrocatalyst reduction. The prepared Sn1Cu-SAA catalyst shows maximal Faradaic efficiency 79.3% 800 mA cm-2, which can be kept stable least 16 h. combination in situ...
Abstract Understanding the dynamical evolution from metal ions to single atoms is of great importance rational development synthesis strategies for atom catalysts (SACs) against sintering during pyrolysis. Herein, an in situ observation disclosed that formation SACs ascertained as a two‐step process. There initially into nanoparticles (NPs) (500–600 °C), followed by conversion NPs (Fe, Co, Ni, Cu SAs) at higher temperature (700–800 °C). Theoretical calculations together with control...
Tunable-aspect ratio gold nanorods have been synthesized by a modified seed-mediated synthesis method. Ascorbic acid was employed as shape controller to induce anisotropic growth, which made the aspect of range from 8.5 15.6. These possess tunable longitudinal surface plasmon resonance absorption band, covering broad near-infrared (NIR) range, ~ 680 1100 nm. When with thiol-polyethylene glycol (SH-PEG), Au showed excellent biocompatibility and stability, foreshadowed great potential their...
Abstract The gate-tunable superconductivity in metallic superconductors has recently attracted significant attention due to its rich physics and potential applications next-generation superconducting electronics. Although the operating principles of these devices have been attributed small leakage currents high-energy electrons recent experiments, generated phonons can spread over considerable distances substrate, which may limit their further applications. Here, we utilize a top gate...
Concave structure of Cu<sub>2</sub>O truncated microcubes with {100} facets etched the assistance air and PVP.
Dual-Atom Electrocatalysts In article number 2205637, Xiaolin Li, Lirong Zheng, Jinbo Bai, Yunteng Qu, and co-workers show that the interfacial cladding strategy successfully enables confinement protection of paired metal atoms by two carbon layers, gains well-defined dual-atom sites anchored in hollow cubic carbon. Among them, most representative dual Fe catalyst shows great potential electrochemical energy conversion.
Single-atom catalysts with a tunable coordination structure have shown grand potential in flexibly altering the selectivity of oxygen reduction reaction (ORR) toward desired pathway. However, rationally mediating ORR pathway by modulating local number single-metal sites is still challenging. Herein, we prepare Nb single-atom (SACs) an external-shell oxygen-modulated unsaturated NbN3 site carbon nitride and NbN4 anchored nitrogen-doped carriers, respectively. Compared typical moieties for 4e–...
This study explores gate-controlled superconductivity in metallic superconductors by employing a top-gate architecture with 15 nm monocrystalline h-BN as gate dielectric. The transport properties under voltage can be elucidated injecting high-energy electrons, following the Fowler–Nordheim electron field emission model. In contrast to conventional resistive Joule heating, injection top-gating exhibits excellent power efficiency suppressing superconductivity. A nearby superconducting bridge,...
Bi2Sr2CaCu2O8+δ (BSCCO) single crystals are promising for high-temperature superconducting electronic devices with ultimate performance. Recently, tailoring superconductivity in ultra-thin BSCCO locally has received wide attention and interest. In this work, we focus on controlling the of uppermost CuO2 double layer crystal. Gold electrodes deposited onto freshly cleaved surface by a high-vacuum situ evaporation technique at room temperature, then Josephson junctions (SJJs) between two...
We fabricated thin film Nb/Au/NbSeaamp;lt;subaamp;gt;2aamp;lt;/subaamp;gt; hybrid Josephson junctions by a dry transfer technique with only single lithography step in the process. A Au layer is deposited on Nb to prevent oxidation during fabrication The superconducting van der Waals (vdW) material NbSe2 placed top of Nb/Au layer. Electrical transport properties are studied detail and compared numerical simulations. current-voltage characteristics we observe typical for superconductor-normal...
Abstract The tunability in Josephson junctions is foundational to the superconducting classical and quantum applications. Here, we demonstrate local manipulation of supercurrent realized a interference device (SQUID) with two Nb/TiO x /Nb that biased at TiO layer. Our measurements indicate multi-port allows for an easy situ supercurrent. control mechanism can be finely explained by simple yet valid theoretical methods, which take effective electronic temperature across SQUID self inductive...
van der Waals Josephson junctions utilize the interface between two superconducting ${\mathrm{NbSe}}_{2}$ crystal flakes as a tunnel barrier. We fabricate such by dry-transfer procedure and characterize them electric transport experiments at various temperatures under microwave irradiation frequencies up to 224 GHz. observe integer Shapiro steps in current-voltage characteristics indicating sinusoidal current-phase relation possibility use this kind of junction even terahertz frequency range.
Fluorescence imaging technique has become a fundamental tool for biomedical applications, as non-invasive method，it can go beyond the limits of human vision to image diseased tissue, which will help eye distinguish tissue from healthy tissue. Of which, near infrared fluorescence overcome disadvantages traditional technology such strong absorption, scattering and spontaneous interference, exhibit deeper penetration depth achieve higher temporal spatial resolution in vivo. In recent decade, it...
Heterostructures between conventional superconductors and materials with different electronic ground states have emerged as a powerful method for exploring the exotic superconducting properties induced by proximity effect. Here, we investigate Andreev transport through interface an s-wave superconductor Nb type-II Wely semimetal NbIrTe4. The differential conductance measurement reveals anomalous zero-bias peak prominent subgap structures at low temperatures. Furthermore, found that these are...
<abstract> <b><sc>Abstract.</sc></b> This report presents the process of experimental design and analysis results. The experiment measures time for different balls rolling down a slope variety angles surfaces. An orthogonal was adopted to optimize design. Multiple variance (MANOVA) applied analyze data. result shows that four variables including balls, angles, materials initial velocities all impact significantly, speed is most significant one. can be divided into 4 parts assumption...