Huanhuan Guo

ORCID: 0000-0001-9752-0173
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About
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Research Areas
  • Ferroelectric and Piezoelectric Materials
  • Microwave Dielectric Ceramics Synthesis
  • Advancements in Battery Materials
  • Advanced Battery Materials and Technologies
  • Multiferroics and related materials
  • Advanced Antenna and Metasurface Technologies
  • Advanced Battery Technologies Research
  • Metamaterials and Metasurfaces Applications
  • Antenna Design and Analysis
  • Electromagnetic wave absorption materials
  • Dielectric materials and actuators
  • Advanced battery technologies research
  • MXene and MAX Phase Materials
  • Polymer Nanocomposites and Properties
  • Transition Metal Oxide Nanomaterials
  • biodegradable polymer synthesis and properties
  • Dielectric properties of ceramics
  • Axial and Atropisomeric Chirality Synthesis
  • Full-Duplex Wireless Communications
  • Acoustic Wave Resonator Technologies
  • Electrocatalysts for Energy Conversion
  • Polymer crystallization and properties
  • Microwave Engineering and Waveguides
  • Molecular spectroscopy and chirality
  • Fiber-reinforced polymer composites

Jingdezhen Ceramic Institute
2022-2025

Changsha University of Science and Technology
2024-2025

Changchun University of Technology
2023

Wuhan Technology and Business University
2023

Zhengzhou University of Aeronautics
2022-2023

Harbin University of Science and Technology
2023

Shandong University
2017-2022

Euler Technology (China)
2022

Harbin Institute of Technology
2021-2022

Xingtai University
2022

Novel BaTiO<sub>3</sub>-based capacitors show promising energy storage performance with high breakdown strength and discharge density outstanding efficiency.

10.1039/c7ta05392d article EN Journal of Materials Chemistry A 2017-01-01

An ultrahigh enhancement rate of <italic>U</italic><sub>d</sub> (≈187%) and (≈19 J cm<sup>−3</sup>) have been obtained for P(VDF-HFP)-based nanocomposites using novel core–shell BaTiO<sub>3</sub>@MgO as the filler.

10.1039/d0ta03304a article EN Journal of Materials Chemistry A 2020-01-01

Microwave dielectric ceramics are vital for filters, resonators, and antennas in the 5G era. It was found that (Cu1/3Nb2/3)4+ substitution can effectively adjust TCF (temperature coefficient of resonant frequency) Li2TiO3 simultaneously increase its Q × f (Q denote quality factor frequency, respectively) value. Notably, excellent microwave properties (εr (permittivity) ≈ 18.3, 77,840 GHz, +9.8 ppm/°C) were achieved Li2Ti0.8(Cu1/3Nb2/3)0.2O3 (LTCN0.2) ceramic sintered at 1140 °C....

10.1021/acsami.0c18836 article EN ACS Applied Materials & Interfaces 2020-12-24

The LTMN<sub>0.25</sub> + 1 wt% 0.6CuO–0.4B<sub>2</sub>O<sub>3</sub> ceramic with low sintering temperature, small density and excellent performance have wide application prospects in 5G devices.

10.1039/d0tc00326c article EN Journal of Materials Chemistry C 2020-01-01

Abstract In the (Bi 1 − x Ce )VO 4 (0 ≤ 1) system, we found that 0.1) belongs to monoclinic scheelite phase and (0.7 tetragonal zircon phase, while (0.1 &lt; 0.7) mixed phases of both structure. Interestingly, two components with near‐zero temperature coefficient resonant frequency (TCF) appeared in this system. our previous work, a TCF ~+15 ppm/°C was obtained 0.75 0.25 ceramic permittivity (ε r ) ~47.9 Qf (Q = quality factor 1/dielectric loss; f frequency) value ~18 000 GHz (at 7.6 GHz)....

10.1111/jace.16759 article EN Journal of the American Ceramic Society 2019-08-21

We propose a method for achieving THz ultra-broadband coherent absorption using the anti-reflection theory of metamaterials. The metamaterial absorber consists periodic array electric ring resonators with multilayered structure which form desired refractive index dispersion and provide continuous over wide frequency range. destructive interference mechanism resonance are determined by simulation analysis numerical simulation. Simulation results show that bandwidth is almost 8.02 (absorption...

10.1039/c9nr10668e article EN Nanoscale 2020-01-01

Abstract Microwave dielectric ceramics are considered to be one of the key materials for resonators (DR) and have very broad application prospects in fifth generation (5G) mobile communication system. Here we prepared high‐quality factor Y 3 Al 5 O 12 (YAG) transparent using high‐purity α‐Al 2 powders by cold isostatic pressing vacuum sintered with tungsten meshes as heating elements. Optimum relative permittivity ( ) ~10.53, quality Q × f (Q = 1/dielectric loss, resonant frequency) ~95, 270...

10.1111/jace.17878 article EN Journal of the American Ceramic Society 2021-04-30

Abstract Exploring environment‐friendly energy storage ceramics simultaneously featuring large recoverable density ( W rec ), high‐energy efficiency ƞ and excellent temperature stability is highly desirable for the application of pulsed power systems. Herein, Nb 2 O 5 was introduced to modify BNBST‐based lead‐free relaxor ferroelectric in an effort enhance dielectric stability. (Bi 0.5 Na ) 0.65 (Ba 0.3 Sr 0.7 0.35 (Ti 0.98 Ce 0.02 )O 3 (BNBSTC) + x wt%Nb (0 ≤ 4) were prepared by a...

10.1111/jace.19050 article EN Journal of the American Ceramic Society 2023-02-09

A transparent MgAl<sub>2</sub>O<sub>4</sub> cylindrical ceramic, prepared <italic>via</italic> hot isostatic pressing, was used as a dielectric resonator antenna taking on good performance using the HE<sub>11δ</sub> fundamental modes.

10.1039/d0tc02713h article EN Journal of Materials Chemistry C 2020-01-01

The behaviour of<italic>ε</italic><sub>r</sub>in La(Nb<sub>0.9</sub>V<sub>0.1</sub>)O<sub>4</sub><italic>vs.</italic>temperature is anomalous and may have novel applications in composite ceramics.

10.1039/d0qi00981d article EN Inorganic Chemistry Frontiers 2020-10-27

An efficient catalytic asymmetric Michael-type reaction of azonaphthalenes with 5-aminoisoxazoles has been developed. The was based on the utilization a chiral phosphoric acid as catalyst, delivering large panel axially heterobiaryl diamines in generally good yields excellent enantioselectivities. gram-scale and postmodification product demonstrated their potentials synthesis catalysts ligands. This approach not only provides useful method for construction pentatomic scaffolds but also...

10.1021/acs.orglett.4c00440 article EN Organic Letters 2024-03-21

Metal-organic frameworks (MOFs) are promising candidates for thermochromic materials. In this study, a hydrogen-bonded 3D porous metal-organic framework, Co-BTC (Co3(BTC)2·12H2O, BTC = 1,3,5-benzenetricarboxylate), exhibited pink color at room temperature, attributed to the d-d transition of Co2+ ions within and displayed reversible behavior due alterations in coordination environment ions. Additionally, Co-BTC/PVB film was successfully designed fabricated as smart window with monolayer...

10.1039/d4dt03423f article EN Dalton Transactions 2025-01-01
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