Lei Su

ORCID: 0000-0003-1707-3102
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About
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Research Areas
  • Aerogels and thermal insulation
  • Advanced ceramic materials synthesis
  • Supercapacitor Materials and Fabrication
  • Advanced Photocatalysis Techniques
  • Nuclear materials and radiation effects
  • Electromagnetic wave absorption materials
  • High-Temperature Coating Behaviors
  • Copper-based nanomaterials and applications
  • High Entropy Alloys Studies
  • Advanced Antenna and Metasurface Technologies
  • Semiconductor materials and devices
  • 2D Materials and Applications
  • Electrocatalysts for Energy Conversion
  • MXene and MAX Phase Materials
  • Cellular and Composite Structures
  • Surface Modification and Superhydrophobicity
  • ZnO doping and properties
  • Advanced Nanomaterials in Catalysis
  • Advanced Sensor and Energy Harvesting Materials
  • Advanced materials and composites
  • Metamaterials and Metasurfaces Applications
  • Electronic and Structural Properties of Oxides
  • Electrochemical Analysis and Applications
  • High-pressure geophysics and materials
  • Nanoporous metals and alloys

Xi'an Jiaotong University
2016-2025

Wuhan University
2002-2024

Qingdao University of Technology
2023-2024

Nanjing Tech University
2024

East China University of Science and Technology
2021-2024

CHN Energy (China)
2024

Qingdao University of Science and Technology
2024

China General Nuclear Power Corporation (China)
2024

Beijing University of Chemical Technology
2010-2023

Zhangqiu City People's Hospital
2023

Abstract High-entropy ceramics (HECs) are solid solutions of inorganic compounds with one or more Wyckoff sites shared by equal near-equal atomic ratios multi-principal elements. Although in the infant stage, emerging this new family materials has brought opportunities for material design and property tailoring. Distinct from metals, diversity crystal structure electronic provides huge space properties tuning through band engineering phonon engineering. Aside strengthening, hardening, low...

10.1007/s40145-021-0477-y article EN cc-by Journal of Advanced Ceramics 2021-04-16

Ultralight ceramic aerogels with the property combination of recoverable compressibility and excellent high-temperature stability are attractive for use in harsh environments. However, conventional usually constructed by oxide nanoparticles, their practical applications have always been limited brittle nature ceramics volume shrinkage at high temperature. Silicon carbide (SiC) nanowire offers integrated properties elasticity flexibility one-dimensional (1D) nanomaterials superior thermal...

10.1021/acsnano.7b08577 article EN ACS Nano 2018-03-07

Anisotropic and hierarchical microstructure is designed to realize thermal superinsulation high stiffness of ceramic aerogels.

10.1126/sciadv.aay6689 article EN cc-by-nc Science Advances 2020-06-24

With the prevailing energy challenges and rapid development of aerospace engineering, high-performance thermal insulators with various functions are attracting more attention. Ceramic aerogels promising candidates for to be applied in harsh environments because their low conductivity simultaneously excellent chemical stabilities. In general, effective properties this class materials depend on both microstructures intrinsic building blocks. Herein, enrich family broaden application fields...

10.1021/acsami.9b02869 article EN ACS Applied Materials & Interfaces 2019-04-09

Lightweight electromagnetic (EM) wave absorbers made of ceramics have sparked tremendous interest for applications in EM interference protection at high temperatures. However, absorption by pure still faces huge challenges due to the lack efficient attenuation modes. Inspired energy dissipation mechanism during fracture lobster shells with a soft and stiff multilayered structure, we fabricate high-performance ceramic aerogel composed an alternating transparent Si3N4 (N) layer SiC (C) simple...

10.1021/acsami.1c02906 article EN ACS Applied Materials & Interfaces 2021-04-02

Abstract The enhanced compositional flexibility to incorporate multiple-principal cations in high entropy oxides (HEOs) offers the opportunity expand boundaries for accessible compositions and unconventional properties oxides. Attractive functionalities have been reported some bulk HEOs, which are attributed long-range homogeneity, lattice distortion, local chemical bonding characteristics materials. However, intricate details of composition fluctuation, metal-oxygen bond distortion...

10.1038/s41467-022-30018-y article EN cc-by Nature Communications 2022-04-29

Resilient ceramic aerogels are emerging as a fascinating material that features light weight, low thermal conductivity, and recoverable compressibility, promising widespread prospects in the fields of heat insulation, catalysis, filtration, aerospace exploration. However, construction resilient with rational designed multiscale architectures aiming for tunable physical mechanical performances remains major challenge. Here, 3D constructed SiC nanowire possessing programmed geometries...

10.1021/acsnano.2c01039 article EN ACS Nano 2022-04-11

Ceramic aerogels are highly efficient, lightweight, and chemically stable thermal insulation materials but their application is hindered by brittleness low strength. Flexible nanostructure-assembled compressible have been developed to overcome the they still show strength, leading insufficient load-bearing capacity. Here we designed fabricated a laminated SiC-SiOx nanowire aerogel that exhibits reversible compressibility, recoverable buckling deformation, ductile tensile simultaneous high...

10.1038/s41467-023-42703-7 article EN cc-by Nature Communications 2023-11-03

Carbon aerogels are elastic, mechanically robust and fatigue resistant known for their promising applications in the fields of soft robotics, pressure sensors etc. However, these generally fragile and/or easily deformable, which limits applications. Here, we report a synthesis strategy fabricating highly compressible fatigue-resistant by assembling interconnected carbon tubes. The tube demonstrate near-zero Poisson's ratio, exhibit maximum strength over 20 MPa completely recoverable strain...

10.1038/s41467-023-38664-6 article EN cc-by Nature Communications 2023-06-01

SiC ceramics are attractive electromagnetic (EM) absorption materials for the application in harsh environment because of their low density, good dielectric tunable performance, and chemical stability. However, performance current SiC-based to absorb EM wave is generally unsatisfactory due poor impedance matching. Herein, we report ultralight SiC/Si<sub>3</sub>N<sub>4</sub> composite aerogels (~15 mg·cm<sup>−3</sup>) consisting numerous interweaving nanowires Si<sub>3</sub>N<sub>4</sub>...

10.26599/jac.2023.9220684 article EN cc-by Journal of Advanced Ceramics 2023-01-10

Ceramic aerogels are attractive candidates for high-temperature thermal insulation, catalysis support, and ultrafiltration materials, but their practical applications usually limited by brittleness. Recently, reversible compressibility has been realized in flexible nanostructures-based ceramic aerogels. However, these modified still show fast brittle fracture under tension. Herein, we demonstrate achieving stretch crack insensitivity a highly compressible aerogel through engineering its...

10.1021/acsnano.1c07755 article EN ACS Nano 2021-11-12

With the booming of modern information technology, electromagnetic wave (EMW) absorption materials are playing more and crucial roles in applications ranging from wearable smart electronics to national defense security. However, application present EMW is severely hindered by their drawbacks, such as narrow bandwidth low intensity. In this work, a series highly porous well-interconnected SiC@C nanowire foams (SCNFs) rationally designed exhibit modified impedance match multiscale energy...

10.1021/acsami.9b20636 article EN ACS Applied Materials & Interfaces 2020-01-27

Resilient ceramic aerogels exhibit great potential for applications in harsh environments owing to their unique combination of ultrahigh porosity, lightweight, reversible compressibility, and good thermal chemical stabilities. However, are severely restricted by the limited size low yield due complicated time-consuming synthetic procedures. Herein, we developed an efficient method large-scale production resilient SiC nanowire (SiC NWAGs) with tunable densities desired shapes. The...

10.1021/acsami.9b16811 article EN ACS Applied Materials & Interfaces 2019-11-08

An adaptable, low-cost, and easy-to-operate biological treatment system for pollutant abatement in aquaculture water at the field pond scale needs to be developed. In this study, removal capacity of a stable bioreactor wastewater was assessed, related mechanism elucidated via an analysis microbial community’s characteristics functions. The average efficiencies chemical oxygen demand, suspended solids, total nitrogen, phosphorus were 40%, 86.22%, 38.62%, 53.74%, respectively. effluent quality...

10.3390/w17010119 article EN Water 2025-01-04

Ceramic nanofibrous nanostructure-based sponges have attracted significant attention due to ultrahigh porosity, low thermal conductivity, large specific area, and chemical stability. From the regulation of fiber itself construction method 3D networks, efforts are being made improve mechanical properties ceramic for practical applications. So far resilient compressibility has been realized in nanofibrous-based via structural design, but they still show brittle fracture under a more complex...

10.1021/acs.nanolett.2c04475 article EN Nano Letters 2023-02-07
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