Lei Zhang

ORCID: 0000-0003-3765-7324
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About
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Research Areas
  • Advancements in Battery Materials
  • Supercapacitor Materials and Fabrication
  • Electrocatalysts for Energy Conversion
  • Advanced Battery Materials and Technologies
  • Advanced battery technologies research
  • Advancements in Solid Oxide Fuel Cells
  • Fuel Cells and Related Materials
  • Conducting polymers and applications
  • Concrete and Cement Materials Research
  • Electronic and Structural Properties of Oxides
  • Graphene research and applications
  • Gas Sensing Nanomaterials and Sensors
  • Innovative concrete reinforcement materials
  • Optical Systems and Laser Technology
  • Advanced Battery Technologies Research
  • MXene and MAX Phase Materials
  • Advanced Photocatalysis Techniques
  • Photonic and Optical Devices
  • Extraction and Separation Processes
  • Analytical Chemistry and Sensors
  • Semiconductor Lasers and Optical Devices
  • Perovskite Materials and Applications
  • Recycled Aggregate Concrete Performance
  • Nonlinear Optical Materials Studies
  • Optical Wireless Communication Technologies

Hebei University of Technology
2018-2025

Shanghai University
2020-2024

Wuhan University of Technology
2015-2024

State Key Laboratory of Advanced Technology For Materials Synthesis and Processing
2024

Anhui University
2020-2024

Beijing University of Technology
2007-2023

Southwest Petroleum University
2017-2023

Southwest University
2023

Kunming University of Science and Technology
2023

East China University of Science and Technology
2023

Graphene oxide-wrapped amorphous copper vanadium oxide is fabricated through a template-engaged redox reaction followed by vacuum dehydration. This material exhibits high reversible capacity, excellent rate capability, and out standing high-rate cyclability. The outstanding performance attributed to the fast capacitive charge storage in situ formed with enhanced electrical conductivity. ever-increasing consumer market has stimulated expansion of lithium-ion batteries from energy devices...

10.1002/advs.201500154 article EN cc-by Advanced Science 2015-08-07

Using graphene oxide (GO) as both a reducing agent and support, two-step method was used to fabricate GO decorated with Au–Ag alloy nanoparticles an Au-rich shell. The material exhibited excellent catalytic activity for the reduction of 4-nitrophenol 4-aminophenol in water at room temperature its superior that prepared by one-step either Au or Ag alone.

10.1039/c3ta10684e article EN Journal of Materials Chemistry A 2013-01-01

Heterogeneous MoS<sub>2</sub>/NiS is dimensionally constructed and selectively fine tuned to achieve different morphologies with multi-level interfaces.

10.1039/c8ta03304h article EN Journal of Materials Chemistry A 2018-01-01

Hierarchical CuCo<sub>2</sub>S<sub>4</sub> hollow spheres are constructed by continual aggregation and growth of nanocrystals on the surface gas bubbles.

10.1039/c7ta07890k article EN Journal of Materials Chemistry A 2017-10-10

Perovskite solar modules (PSMs) show outstanding power conversion efficiencies (PCEs), but long-term operational stability remains problematic. We that incorporating N,N -dimethylmethyleneiminium chloride into the perovskite precursor solution formed dimethylammonium cation and previously unobserved methyl tetrahydrotriazinium ([MTTZ] + ) effectively improved film. The in situ formation of [MTTZ] increased energy iodine vacancies enhanced migration barrier iodide cesium ions, which...

10.1126/science.ado6619 article EN Science 2024-10-31

The use of recycled coarse aggregates (RCA) in concrete production offers significant environmental and economic benefits. However, the high water absorption low mechanical strength RCA, caused by residual mortar internal cracks, severely limit its application. This study employed microbial-induced calcium carbonate precipitation (MICP) technology to improve RCA performance, systematically investigating effects key parameters such as bacterial strains, concentration, modification duration,...

10.3390/buildings15050825 article EN cc-by Buildings 2025-03-05

Layered materials are highly attractive in gas sensor research due to their extraordinary electronic and physicochemical properties. The development of cheaper faster room-temperature detectors with high sensitivities especially the parts per billion level is main challenge this rapidly developing field. Here, we show that sensitivity NO2 (S) can be greatly improved by at least two orders magnitude using an n-type electrode metal. Unconventionally for such devices, ln(S) follows classic...

10.1021/acsami.0c07193 article EN ACS Applied Materials & Interfaces 2020-05-19

Abstract The oxidation state of iron (Fe) in the crystal structure smectite clay minerals profoundly alters their physical-chemical properties. Among properties affected are layer charge, cation exchange and fixation capacity, swelling water, particle size, specific surface area, stacking order, magnetic interactions, octahedral site occupancy, acidity, reduction potential. Also is chemistry clay, which clay–water clay–organic interaction mechanisms. Rates extents degradation pesticides...

10.1351/pac200274112145 article EN Pure and Applied Chemistry 2002-01-01

Ba Ti 1 − x Ca O 3 ceramics, where 0⩽x⩽0.04, prepared by the mixed oxide route at 1500°C display a strong suppression of Curie temperature and significant increase in grain conductivity with increasing x. The ramifications these results on applicability using Ca2+ as dopant to achieve X8R specification BaTiO3-based formulations are discussed.

10.1063/1.2720305 article EN Applied Physics Letters 2007-04-02

Recently a SnS2 based NO2 gas sensor with 30 ppb detection limit was demonstrated but this required high operation temperatures. Concurrently, grown by chemical vapor deposition is known to naturally contain nanoscale defects, which could be exploited. Here, we significantly enhance the performance of on defects photon illumination, and 2.5 achieved at room temperature. Using classical Langmuir model density functional theory simulations, show S vacancies work as additional adsorption sites...

10.1039/c8ra08857h article EN cc-by-nc RSC Advances 2019-01-01

This work developed a method of femtosecond laser (fs-laser) parallel processing assisted by wet etching to fabricate 3D micro-optical components. A 2D fs-laser spot array with designed spatial distribution was generated light modulator. single-pulse exposure the entire used for processing. By subsequent etching, close-packed hexagonal arrangement, concave microlens on curved surface radius approximately 120 μm fabricated, each unit lens which has designable distribution. Characterization...

10.1364/ol.43.000831 article EN Optics Letters 2018-02-08

PtS2 is a newly developed group 10 2D layered material with high carrier mobility, wide band gap tunability, strongly bound excitons, symmetrical metallic and magnetic edge states, ambient stability, making it attractive in nanoelectronic, optoelectronic, spintronic fields. To the aim of application, large-scale synthesis necessary. For transition-metal dichalcogenide (TMD) compounds, thermally assisted conversion method has been widely used to fabricate wafer-scale thin films. However,...

10.1021/acsami.8b19218 article EN ACS Applied Materials & Interfaces 2019-02-07
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