A5048835727- 2D Materials and Applications
- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- ZnO doping and properties
- Ga2O3 and related materials
- Electrocatalysts for Energy Conversion
- Perovskite Materials and Applications
- Graphene research and applications
- MXene and MAX Phase Materials
- Quantum Dots Synthesis And Properties
- Advanced Battery Technologies Research
- Mechanical and Optical Resonators
- Advanced Sensor and Energy Harvesting Materials
- Chalcogenide Semiconductor Thin Films
- Nanowire Synthesis and Applications
- GaN-based semiconductor devices and materials
- Acoustic Wave Resonator Technologies
- Gas Sensing Nanomaterials and Sensors
- Advanced battery technologies research
- Advanced MEMS and NEMS Technologies
- Advanced Photocatalysis Techniques
- Electronic and Structural Properties of Oxides
- Antenna Design and Analysis
- Advanced Antenna and Metasurface Technologies
- Copper-based nanomaterials and applications
University of Science and Technology Beijing
2021-2025
South China Normal University
2025
Xidian University
2015-2024
China Academy of Engineering Physics
2021-2024
Instituto de Ciencia de Materiales de Madrid
2022-2023
Consejo Superior de Investigaciones Científicas
2022-2023
Tongji University
2018-2022
Sun Yat-sen University
2021-2022
Chongqing University
2022
Anhui University
2022
Abstract Perovskites (ABX 3 ) are promising oxygen evolution reaction (OER) catalysts for their highly intrinsic activity. The in‐depth understanding and the adjustment of dynamic reconstruction active phases perovskites in OER still a daunting challenge. Here, refined A‐site management strategy is proposed perovskite oxides, which facilitates surface B‐site element based phase to enhance performance. Electrocatalyst LaNiO displays feature during with growth self‐assembled NiOOH layer, on...
Li<sub>x</sub>Sn foil anode prepared by mechanical prelithiation suppresses gassing and achieves stable full-cell cycling in lithium ion batteries.
Graphite and lithium metal are two classic anode materials their composite has shown promising performance for rechargeable batteries. However, it is generally accepted that Li wets graphite poorly, causing its spreading infiltration difficult. Here we show can either appear superlithiophilic or lithiophobic, depending on the local redox potential. By comparing wetting of highly ordered pyrolytic graphite, porous carbon paper (PCP), lithiated PCP powder, demonstrate surface contaminants pin...
We report a universal phase reconfiguration phenomenon and doping strategy to enhance the activity of multivalent nickel sulfides in hydrogen evolution. Based on these, life-time dynamic structure-activity correlation has been established.
The catalytic activity of transition metal-based catalysts is overwhelmingly dependent on the geometric configuration. Identification and interpretation different configurations' contributions to plays a pivotal role in performance elevation. Spinel structured AB2X4, consisting tetrahedral (A2+-X)Td octahedral (B3+-X)Oh configurations, prototypical category multi-geometric-configuration featured catalysts. However, it still under debate about predominant configuration responsible for spinel...
A compact triple-band microstrip slot antenna applied to WLAN/WiMAX applications is proposed in this letter. This has a simpler structure than other antennas designed for realizing characteristics. It just composed of feed line, substrate, and ground plane on which some simple slots are etched. Then, prove the validation design, prototype fabricated measured. The experimental data show that can provide three impedance bandwidths 600 MHz centered at 2.7 GHz, 430 3.5 1300 5.6 GHz.
Transition metal dichalcogenides (TMDs) have attracted considerable interest for exploration of next-generation electronics and optoelectronics in recent years. Fabrication in-plane lateral heterostructures between TMDs has opened up excellent opportunities engineering two-dimensional materials. The creation high quality with a facile method is highly desirable but it still remains challenging. In this work, we demonstrate one-step growth the construction high-quality MoS2-WS2...
A highly stable Sb based anode material of well-confined Sb@graphene@carbon (Sb@G@C) was developed for high performance PIBs. The Sb@G@C electrode exhibits a reversible capacity 474 mA h g-1 at 100 (second charge), an outstanding long cycle stability over 800 cycles with retention as 72.3% and excellent rate performance.
Abstract The active structure and catalysis pathway of catalytic materials jointly dominate the thermodynamic energy barrier kinetic rate during reactions, which severely restrict their service behaviors. Herein, whole dynamic process covering both structural evolution model catalyst spinel NiCo 2 O 4 water oxidation via in situ experiments theoretical calculations is investigated. Based on identified authentic terminated phase NiOOH figured lattice oxygen pathway, an effective expedition...
We report a spontaneous phase transformation of GaTe, occurring when the bulk is exfoliated to few layers. The results demonstrate crucial role interlayer interactions in structural stability.
Two-dimensional (2D) materials have recently received a great deal of attention due to their unique structures and fascinating properties, as well potential applications. 2D hexagonal boron nitride (2D h-BN), an insulator with excellent thermal stability, chemical inertness, electronic optical band gap 5.97 eV, is considered be ideal candidate for integration other materials. Nevertheless, the controllable growth high-quality h-BN still challenge. A comprehensive overview progress that has...
In this paper, we demonstrated AlGaN/GaN metal-insulator-semiconductor high-electron mobility transistors (MIS-HEMTs) with AlN gate dielectric grown by plasmaenhanced atomic layer deposition (PEALD). The high-quality interface of AlN/AlGaN/GaN MIS-HEMTs resulted in a very small threshold voltage (Vth) hysteresis and dispersion. Simultaneously, the exhibited high-peak transconductance 289 mS/mm Vth shift 0.8 V, while those for Al <sub xmlns:mml="http://www.w3.org/1998/Math/MathML"...
MoO2 is used as a new source material for the growth of large area and high optical quality monolayer MoS2. However, systematic study parameters still missing large-area discreet single crystals challenging. Hereby, we report shape evolution MoS2 develop methodology to achieve centimeter-scaled discrete by adopting Mo in an atmospheric-pressure chemical vapor deposition process. Our results indicate could benefit from precise control introduction time sulfur S/MoO2 ratio experiments....
Lean electrolyte (small E/S ratio) is urgently needed to achieve high practical energy densities in Li-S batteries, but there a distinction between the cathode's absorbed (AE) which cathode-intrinsic and total added (E) depends on cell geometry. While pore volume sulfur cathodes affects AE/S performance, it shown here that morphology, size, connectivity, fill factor all matter. Compared conventional thermally dried usually render "open lakes" closed pores, freeze-dried compressed (FDS-C)...
We demonstrate the fabrication of field-effect transistors based on single-layer MoS2 and a thin layer BaTiO3 (BTO) dielectric, isolated from its parent epitaxial template substrate. Thin BTO provides an ultrahigh-κ gate dielectric effectively screening Coulomb scattering centers. These devices show mobilities substantially larger than those obtained with standard SiO2 dielectrics comparable values hexagonal boron nitride, employed for high-performance two-dimensional (2D) devices. Moreover,...
π electron configuration plays a pivotal role in metal-free carbon catalysts, and its delocalization degree overwhelmingly dominates catalytic activity. However, precise targeted regulation of inherent electrons still remain challenging. Here, one chemical-bond-targeted physical clipping strategy is proposed effectively adopted the cutting-edge material system graphdiyne (GDY) as concept-of-proof. The delocalized are expected to be periodically reformatted for substantially enhancing...
Abstract Electrocatalytic water splitting is recognized as quite a promising protocol for the renewable hydrogen energy production, and significant effort has been devoted to design of high‐performance electrocatalysts that can efficiently alleviate critical issue fossil fuel scarcity. However, vast majority traditional strategies restrictedly focus on pristine electrocatalyst structure ultimate performance results, which may lead incorrect or even opposite understanding catalytic...
Hexagonal boron nitride (h-BN), one of the hallmark van der Waals (vdW) layered crystals with an ensemble attractive physical properties, is playing increasingly important roles in exploring two-dimensional (2D) electronics, photonics, mechanics, and emerging quantum engineering. Here, we report on demonstration h-BN phononic crystal waveguides designed pass stop bands radio frequency (RF) range controllable wave propagation transmission, by harnessing arrays coupled nanomechanical...
A method is presented for scaling up the production of flakes van der Waals materials via mechanical exfoliation. Using a roll-to-roll setup and an automatized, massive parallel exfoliation process, adhesive tapes with high density nanosheets are produced. The technique allows obtaining good trade-off between large lateral size excellent area scalability, while also maintaining low cost. potential demonstrated through successful fabrication field effect transistors flexible photodetectors in...