A5010938462- Ferroelectric and Piezoelectric Materials
- Microwave Dielectric Ceramics Synthesis
- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Dielectric properties of ceramics
- Multiferroics and related materials
- Advanced Battery Technologies Research
- Aluminum Alloys Composites Properties
- Intermetallics and Advanced Alloy Properties
- Semiconductor materials and interfaces
- Electrocatalysts for Energy Conversion
- Perovskite Materials and Applications
- Microstructure and mechanical properties
- Advanced ceramic materials synthesis
- MXene and MAX Phase Materials
- Supercapacitor Materials and Fabrication
- Aluminum Alloy Microstructure Properties
- 2D Materials and Applications
- Quantum Dots Synthesis And Properties
- Layered Double Hydroxides Synthesis and Applications
- Titanium Alloys Microstructure and Properties
- Advanced battery technologies research
- High Entropy Alloys Studies
- Dielectric materials and actuators
- Extraction and Separation Processes
Northwestern Polytechnical University
2015-2024
Qilu University of Technology
2024
Dalian University of Technology
2019-2022
Division of Undergraduate Education
2022
Framework
2022
Ministry of Industry and Information Technology
2021
China XD Group (China)
2014-2020
Brookhaven National Laboratory
2018-2019
Guizhou Normal University
2017
Guiyang University
2017
Abstract Engineering transition metal‐nitrogen‐carbon (TM‐N‐C) catalysts with high‐density accessible active sites and optimized electronic structure holds great promise in the context of electrochemical oxygen reduction reaction (ORR). Herein, a novel modification lysozyme‐modified zeolitic imidazolate framework isolated Co atoms anchored on dominated pyridinic‐N doped carbon (Co‐pyridinic N‐C) is reported. The atomically dispersed allows maximum site exposure while introduction pyridinic N...
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.
Abstract Addressing the intrinsic charge transport limitation of metal oxides has been significance for pursuing viable PEC water splitting photoelectrodes. Growing a photoelectrode with conductive nanoobjects embedded in matrix is promising enhanced but remains challenge technically. We herein show strategy embedding laser generated nanocrystals BiVO 4 photoanode matrix, which achieves photocurrent densities up to 5.15 mA cm −2 at 1.23 V RHE (from original 4.01 ) single configuration, and...
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....
Molybdenum disulfide (MoS2 ), a 2D-layered compound, is regarded as promising anode for sodium-ion batteries (SIBs) due to its attractive theoretical capacity and low cost. The main challenges associated with MoS2 are the rate capability suffering from sluggish kinetics of Na+ intercalation poor cycling stability owning stack sheets. In this work, unique architecture bundled defect-rich (BD-MoS2 ) that consists large vacancies by ultrathin MoO3 achieved via facile quenching process. When...
Tetragonal tungsten bronzes (TTBs), an important class of oxides known to exhibit ferroelectricity, undergo complex distortions, including rotations oxygen octahedra, which give rise either incommensurately or commensurately modulated superstructures. Many TTBs display broad, frequency-dependent relaxor dielectric behavior rather than sharper frequency-independent normal ferroelectric anomalies, but the exact reasons that favor a particular type response for given composition remain unclear....
Pt–Cu alloy concave nanocubes enclosed by high-index {511} facets were synthesized in high yields and exhibited substantially enhanced electrocatalytic properties for methanol oxidation relative to commercial Pt/C.
Ni-rich LiNi1-x-y Mnx Coy O2 (NMC) layered compounds are the dominant cathode for lithium ion batteries. The role of crystallographic defects on structure evolution and performance degradation during electrochemical cycling is not yet fully understood. Here, we investigated structural a NMC in solid-state cell by situ transmission electron microscopy. Antiphase boundary (APB) twin (TB) separating phases played an important phase change. Upon Li depletion, APB extended across structure, while...
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...
Treatment of hypersaline waters is a critical environmental challenge. Pervaporation (PV) desalination promising technique to address this challenge, but current PV membranes still suffer from challenging issues such as low flux and insufficient stability. Herein, we propose in situ nanoseeding followed by secondary growth strategy fabricate high-quality stable metal–organic framework (MOF) thin membrane (UiO-66) for high-performance pervaporation waters. To the issue quality, TiO2...
The new 2D Ti 3 C 2 T x MXene material is widely studied in the field of supercapacitors. However, electrochemical performance discounted due to film's compact self‐stacking phenomenon. Therefore, synthesized flexible self‐supporting /graphene composite membrane effectively alleviates this inherent disadvantage. Unlike using traditional reduction graphene oxide, structural integrity and large‐sized flakes are through anhydrous ferric chloride (FeCl )‐intercalated natural graphite flakes;...
Rh–Pd alloy nanodendrites were synthesized and exhibited substantially enhanced performance for oxygen reduction reaction relative to commercial Pt/C.
Two-dimensional (2D) metal sulfides have been widely explored as promising electrodes for lithium-ion batteries since their two-dimensional layered structure allows lithium ions to intercalate between layers. For tin disulfide, the lithiation process proceeds via a sequence of three different types reactions: intercalation, conversion, and alloying, but full scenario reaction dynamics remains nebulous. Here, we investigate dynamical multistep reactions using in situ electron microscopy...
The selection and optimization of coating material/approach for electrode materials have been under intensive pursuit to address the high-voltage induced degradation lithium ion batteries. Herein, we demonstrate an efficient way enhance electrochemical performance LiCoO2 cathode by postcoating its composite with Li4Ti5O12 (LTO) via magnetron sputtering. With a nanoscale (∼25 nm) LTO coating, reversible capacity after 60 cycles is significantly increased 40% (to 170 mAh g-1) at room...