A5070450042- Multiferroics and related materials
- Ferroelectric and Piezoelectric Materials
- Magnetic and transport properties of perovskites and related materials
- Advanced Condensed Matter Physics
- Geochemistry and Geologic Mapping
- Geological and Geochemical Analysis
- Dielectric properties of ceramics
- Geochemistry and Geochronology of Asian Mineral Deposits
- Electrocatalysts for Energy Conversion
- earthquake and tectonic studies
- Gas Sensing Nanomaterials and Sensors
- Advanced Photocatalysis Techniques
- Analytical Chemistry and Sensors
- Acoustic Wave Resonator Technologies
- Crystal Structures and Properties
- Perovskite Materials and Applications
- Transition Metal Oxide Nanomaterials
- Geochemistry and Elemental Analysis
- Catalytic Processes in Materials Science
- Advanced battery technologies research
- Layered Double Hydroxides Synthesis and Applications
- Photorefractive and Nonlinear Optics
- Mine drainage and remediation techniques
- Educational Technology and Assessment
- Materials Engineering and Processing
Hubei Normal University
2009-2024
Huangshi Central Hospital
2010-2020
CAS Key Laboratory of Urban Pollutant Conversion
2010
Daqing Oilfield General Hospital
2009
Guangzhou Institute of Geochemistry
1996-2006
Chinese Academy of Sciences
1996-2006
MEI Research (United States)
2005
Institute of Oceanology
2004
Academia Sinica
1984-1993
China Medical University
1993
The utilization of seawater for hydrogen production via water splitting is increasingly recognized as a promising avenue the future. key dilemma electrolysis incompatibility superior hydrogen- and oxygen-evolving activities at ampere-scale current densities both cathodic anodic catalysts, thus leading to large electric power consumption overall splitting. Here, in situ construction Fe
Layered perovskites A3M2O7 are known to exhibit the so-called hybrid improper ferroelectricity. Despite experimentally confirmed cases (e.g., nonmagnetic M = Ti and Sn), ferroelectricity in magnetic Ca3Mn2O7 remains a puzzle. Here, structural, ferroelectric, magnetoelectric, optical properties of systematically investigated. Switchable polarization is directly measured, demonstrating its In addition, magnetoelectric response also evidenced, implying coupling between magnetism Furthermore,...
The superhydrophobic coating was obtained from PTFE, DOTL, PDMS and TEOS on aluminum substrate. a–d present SEM images of coatings without with 0.6 g, 1.0 g PTFE after 34 times icing/deicing experiments, respectively.
Coating a polymeric membrane for gas separation is feasible approach to fabricate sensors with selectivity. In this study, poly(methyl methacrylate)-(PMMA-)membrane-coated palladium (Pd) nanoparticle (NP) films were fabricated high-performance hydrogen (H2) sensing by carrying out gas-phase cluster deposition and PMMA spin coating. No changes induced the coating in electrical transport H2-sensing mechanisms of Pd NP films. Measurements H2 demonstrated that devices capable detecting within...
Alongside the rise in fully automated equipment and wearable devices, there is currently a high demand for optically transparent flexible gas sensors operating at room temperature. Nanoparticle films are ideal H2-sensing materials that can be coupled with substrates because of their discrete nanogranular structure unique interparticle electrical responsiveness. In this work, we present an H2 sensor based on Pd nanoparticle film, prepared polyethylene terephthalate sheet using straightforward...
Main observation and conclusion The design of high‐efficiency non‐noble earth‐abundant electrocatalysts for hydrogen evolution reaction (HER) is highly paramount water splitting renewable energy systems. Molybdenum disulfide (MoS 2 ) with abundant edge sites can be utilized as a promising alternative, but its catalytic activity greatly related to the pH values, especially in an alkaline environment due extremely high barriers adsorption dissociation steps. Here we report exceptionally...
Tungstates $A$WO$_4$ with the wolframite structure characterized by $A$O$_6$ octahedral zigzag chains along $c$-axis, can be magnetic if $A$=Mn, Fe, Co, Cu, Ni. Among them, MnWO$_4$ is a unique member cycloid Mn$^{2+}$ spin order developed at low temperature, leading to an interesting type-II multiferroic behavior. However, so far no other material in tungstate family has been found. In this work, we present synthesis and systematic study of double LiFe(WO$_4$)$_2$. Experimental...
A BiFeO3 film has been deposited on the Pt/Ti/SiO2/Si substrate by a simple chemical solution deposition method annealed at 500 °C. X-ray diffraction analysis revealed that was fully crystallized and highly (1 0 0) preferentially oriented with no impure phase. room temperature saturated hysteresis loop observed remanent polarization of ∼66 µC cm−2 after applying an electric field 916 kV cm−1. Results dielectric property showed large constant quite low loss; loss were 217.9 0.0093 1 MHz,...
Polar magnets are a family of promising candidates for future magnetoelectric (ME) applications. In particular, the ME effect is recognized its potential use in low-power electronic devices. However, searching materials with sufficiently strong remains core issue. this work, we present systematic investigation on oxide compound Sm2BaCuO5, including characterization structural, magnetic, specific heat, dielectric, and pyroelectric behaviors. The intrinsic linear revealed, two successive...
The magnetic properties of the spin-5/2 double molybdate LiFe(MoO4)2 have been characterized by heat capacity, susceptibility, and neutron powder diffraction techniques. Unlike multiferroic system LiFe(WO4)2 which exhibits two successive transitions, undergoes only one antiferromagnetic transition at TN ∼ 23.8 K. Its structure with commensurate propagation vector k = (0, 0.5, 0) has determined. Density functional theory calculations confirm ground state provide a numerical estimate relevant...
PbTiO3/BiFeO3 (PB film), BiFeO3/PbTiO3 (BP film) multilayer structural films and pure BiFeO3 film (BFO have been deposited on LaNiO3/SiO2/Si substrates by the sol–gel process annealed at 600 °C. XRD results indicate that are well crystallized no impure phases observed. The of ferroelectricity show PB BP larger polarization than BFO under same applied electric field. double remanent polarizations film, 82.2 µC cm−2, 85.6 cm−2 3.5 500 kV cm−1, respectively. dielectric property study shows a...
Abstract BiFeO3 and Bi1−xGdxFeO3 (BGFO)(x = 0.05, 0.10, 0.15) thin films were deposited on Pt/Ti/SiO2/Si substrates by a sol–gel process. X-ray diffraction results show that gradual phase transition from rhombohedral to pseudotetragonal structure may occur in BGFO with the increase of Gd content. We observed substantial remnant polarization (Pr) substitution obtained maximum value 72.6 μC/cm2 0.05 molar incorporation. The leakage current behavior at room temperature was studied it found...
The multiferroicity in the RMn2O5 family remains unclear, and less attention has been paid to its dependence on high-temperature (high-T) polarized configuration. Moreover, no consensus high-T space group symmetry reached so far. In view of this consideration, one may argue that low-T range depends poling sequence starting far above multiferroic ordering temperature. work, we investigate detail variation magnetically induced electric polarization GdMn2O5 field routine range. It is revealed...
Magnetoelectric (ME) materials have caught worldwide attentions owing to their potential technological applications in ME switching devices or high-density data storage. However, realizing a sufficiently strong effect one single material is always the key issue. Herein, we systematically investigate Co3NiNb2O9, including characterization of its crystalline structure, magnetism, specific heat, and pyroelectric properties. It revealed that Co3NiNb2O9 exhibits remarkable response below magnetic...
Strong magnetoelectric (ME) coupling has been one of the dreaming goals in and multiferroic materials. In particular, electro-control magnetic ordering magnetization is high interest. this work, we synthesize NdCrTiO5 perform a set characterization studies on properties linear ME effect. It revealed that exhibits phase transition at TN ∼ 20 K, below which remarkable response observed. On hand, it non-ferroelectric zero field as low 1.0 T sufficient to induce pyroelectric current TN,...