Mg gas infiltration for the fabrication of MgB2 pellets using nanosized and microsized B powders

Zhao, Wanli; Suo, Hongli; Wang, Shuo; Ma, Lin; Wang, Lei; Wang, Qiuliang; Zhang, Zili

doi:10.1016/j.jeurceramsoc.2022.08.029

Cited by 72 publications

(10 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…For instance, MgB 2 pellets fabricated using the Mg gas infiltration method demonstrate distinct superconducting characteristics compared to those prepared by other methods. 13 In the exploration of how different preparation methods affect the microstructure and gas sensing characteristics of TiO x NPs, similar observations have been made in other material systems. For instance, the formation of a Ni/Mn shell encapsulating a copper-rich nanocore structure and its properties illustrate the significant impact of preparation methods on the microstructure and properties of materials.…”

Section: Introductionmentioning

confidence: 59%

“…In other material systems, the preparation method significantly influences the properties of the materials. For instance, MgB 2 pellets fabricated using the Mg gas infiltration method demonstrate distinct superconducting characteristics compared to those prepared by other methods . In the exploration of how different preparation methods affect the microstructure and gas sensing characteristics of TiO x NPs, similar observations have been made in other material systems.…”

Section: Introductionmentioning

confidence: 74%

See 1 more Smart Citation

Highly Efficient Room Temperature NO₂ Sensor Using Two-Phase TiO_x Heterogeneous Nanoparticles

Huang,

Sivakumar,

et al. 2024

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

In this study, we successfully synthesized two-phase titanium oxide (TiO x ) heterogeneous nanoparticles (NPs) using an advanced sol–gel method, a significant stride in developing efficient, room temperature (RT) NO2 gas sensors. The prepared two-phase TiO x heterogeneous NPs exhibited exceptional sensitivity to low concentrations of NO2 gas at RT. The heightened gas response was attributed to a significant presence of oxygen vacancies, creating intermediate states within the two-phase heterostructures and thus narrowing the band gap. This facilitated electron transport from the valence band (VB) to the conduction band (CB), resulting in increased current at RT. The XPS analysis confirmed a substantial amount of chemisorbed oxygen O2(ads) – within the two-phase heterostructures, providing more chemisorption sites for nitrogen dioxide gas. This increase in chemisorption sites significantly improved the gas response. Furthermore, the introduction of zinc into the TiO x NPs reduced their band gap, enhancing the background resistance signal-to-noise ratio and increasing the response while maintaining remarkable stability. In summary, our work introduces a promising RT NO2 sensor based on two-phase TiO x heterogeneous NPs, holding great potential for applications in environmental monitoring and gas sensing technology. In future work, we aim to delve deeper into the capabilities of the sensor, exploring broader applications and refining its design for enhanced practicality in environmental monitoring.

show abstract

Section: Introductionmentioning

confidence: 59%

Section: Introductionmentioning

confidence: 74%

Highly Efficient Room Temperature NO₂ Sensor Using Two-Phase TiO_x Heterogeneous Nanoparticles

Huang,

Sivakumar,

et al. 2024

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

show abstract

“…Nanomaterials exhibit large specific surface areas and quantum size effects, which endow them with unique physical and chemical properties. − Carbon-based nanostructures are considered promising materials for nanoelectronics , and have garnered considerable attention in recent years owing to their various physicochemical properties, unique optical properties, high stability, and electron mobility. − …”

Section: Introductionmentioning

confidence: 99%

Simulation Studies on External Electric Field-Dependent Anisotropy of Two-Dimensional Fullerene Nanomaterials qTP C₆₀ and qHP C₆₀: Implications for Photoelectric Nanodevices

Miao,

Wang,

Wang

et al. 2023

ACS Appl. Nano Mater.

View full text Add to dashboard Cite

An external electric field can change the electronic and band structures of 2D nanomaterials, thereby regulating their physical properties and nanodevice functions. In this study, the anisotropy of the nanomaterials quasi-tetragonal phase C 60 (qTP C 60 ) and quasi-hexagonal phase C 60 (qHP C 60 ) under an applied electric field was theoretically evaluated. We investigated the physical mechanisms underlying the changes in the band structure, optical response, Bloch wave function, and electronic structure of the 2D qTP C 60 and qHP C 60 systems under an applied electric field. Our findings reveal that an external electric field can considerably shift the valence and conduction band positions within the band structure. Notably, qTP C 60 and qHP C 60 display remarkable stability and can only transition from a semiconducting state to a conducting state under specific external electric-field intensities. Visualization of the electron density distribution via Bloch wave function analysis of the qTP C 60 and qHP C 60 structures showed dominant influence of the external electric field on the structures and configurations of these systems. Because of such perturbations, the energy band structure changes, affecting the electron distribution and optical response. Additionally, qTP C 60 and qHP C 60 exhibit a surface plasmon effect within a specific wavelength range and can thus be used in photoelectric amplification nanodevices. Overall, our calculations provide a theoretical foundation for the application of qTP C 60 and qHP C 60 in the field of photoelectricity and promote the development and application of fullerene-based materials in the fields of energy storage, optoelectronics, and quantum nanodevices.

show abstract

“…MgB 2 nanoparticles were synthesized by infiltration method using boron powder and Mg gas starting materials 6 . The effects of the contribution of trivalent Ho 3+ ions, one of the rare earth elements, on Ho x CoFe 2x O 4 were investigated using the sol‐gel automatic combustion method 7 .…”

Section: Introductionmentioning

confidence: 99%

“…4,5 MgB 2 nanoparticles were synthesized by infiltration method using boron powder and Mg gas starting materials. 6 The effects of the contribution of trivalent Ho 3+ ions, one of the rare earth elements, on Ho x CoFe 2x O 4 were investigated using the sol-gel automatic combustion method. 7 40 nm cobalt ferrite thin film with (111) thread and (311)-random neck was prepared by sputtering DC magnetron onto a SiO/Si substrate.…”

Section: Introductionmentioning

confidence: 99%

Characterization and magnetic properties of CoFe₂O₄ nanoparticles synthesized by the co‐precipitation method

Bayça

2023

Int J Applied Ceramic Tech

View full text Add to dashboard Cite

In this study, the characterization and magnetic properties of CoFe2O4 nanoparticles synthesized by co‐precipitation method were investigated. The calcined products obtained were characterized by X‐ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X‐ray (EDAX), Fourier transformed infrared (FTIR) spectroscopy, and vibrating sample magnetometer. Crystallite size and phase composition were analyzed by X‐ray diffraction. Crystallite size and phase composition were analyzed by X‐ray diffraction. The average crystallite size of CoFe2O4 nanoparticles increased in the range of 15.85–32.14 nm with an increase in temperature from 500 to 700°C. It was observed that spherical CoFe2O4 nanoparticles were produced. Synthesis of CoFe2O4 nanoparticles was confirmed using XRD, SEM‐EDAX, and FTIR analyses. The effect of crystallite size, calcination temperature, and lattice parameter on saturation magnetization, remanent magnetization, coercivity, and magnetocrystalline anisotropy were investigated by vibrating sample magnetometer. As the crystallite size value increased, magnetocrystalline anisotropy also increased.

show abstract

Mg gas infiltration for the fabrication of MgB2 pellets using nanosized and microsized B powders

Cited by 72 publications

References 50 publications

Highly Efficient Room Temperature NO₂ Sensor Using Two-Phase TiO_x Heterogeneous Nanoparticles

Highly Efficient Room Temperature NO₂ Sensor Using Two-Phase TiO_x Heterogeneous Nanoparticles

Simulation Studies on External Electric Field-Dependent Anisotropy of Two-Dimensional Fullerene Nanomaterials qTP C₆₀ and qHP C₆₀: Implications for Photoelectric Nanodevices

Characterization and magnetic properties of CoFe₂O₄ nanoparticles synthesized by the co‐precipitation method

Contact Info

Product

Resources

About

Mg gas infiltration for the fabrication of MgB2 pellets using nanosized and microsized B powders

Cited by 72 publications

References 50 publications

Highly Efficient Room Temperature NO2 Sensor Using Two-Phase TiOx Heterogeneous Nanoparticles

Highly Efficient Room Temperature NO2 Sensor Using Two-Phase TiOx Heterogeneous Nanoparticles

Simulation Studies on External Electric Field-Dependent Anisotropy of Two-Dimensional Fullerene Nanomaterials qTP C60 and qHP C60: Implications for Photoelectric Nanodevices

Characterization and magnetic properties of CoFe2O4 nanoparticles synthesized by the co‐precipitation method

Contact Info

Product

Resources

About

Highly Efficient Room Temperature NO₂ Sensor Using Two-Phase TiO_x Heterogeneous Nanoparticles

Highly Efficient Room Temperature NO₂ Sensor Using Two-Phase TiO_x Heterogeneous Nanoparticles

Simulation Studies on External Electric Field-Dependent Anisotropy of Two-Dimensional Fullerene Nanomaterials qTP C₆₀ and qHP C₆₀: Implications for Photoelectric Nanodevices

Characterization and magnetic properties of CoFe₂O₄ nanoparticles synthesized by the co‐precipitation method