Constructing γ-MnO2 hollow spheres with tunable microwave absorption properties

Zhang, Fan; Du, Heng; Shang, Siyang; Qaim, Muhammad; Bao, Sen; Su, Tingting; Zhang, Rui; Lu, Hongxia; Wang, Hailong; Xu, Hongliang; Fan, Bingbing

doi:10.1016/j.apt.2020.10.006

Cited by 13 publications

(8 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…48,49 (iii) The addition of a large amount of MOF derivative particles can bring more interfaces, leading to interfacial polarization and dipole polarization between MOF derivative and ANF, resulting in microwave energy attenuation. 50 For magnetic losses, eddy current effects and natural resonance play a major role in enhancing microwave absorption. Therefore, considering the excellent over all microwave attenuation capacity, Co@C/ANF 2 : 1 can be a promising and attractive absorber for application in the MA eld.…”

Section: Resultsmentioning

confidence: 99%

MOF-derived Co@C nanoparticle anchored aramid nanofiber (ANF) aerogel for superior microwave absorption capacity

Xin

2021

RSC Adv.

View full text Add to dashboard Cite

show abstract

Section: Resultsmentioning

confidence: 99%

MOF-derived Co@C nanoparticle anchored aramid nanofiber (ANF) aerogel for superior microwave absorption capacity

Xin

2021

RSC Adv.

View full text Add to dashboard Cite

show abstract

“…He argued that the dielectric properties of the as-prepared samples increased with increasing temperature and the improved absorbing capability was primarily attributed to the impedance matching behavior and interfacial polarization effects. More recently, Zhang et al 31 fabricated the hollow γ-MnO 2 sphere with the RL min of -51.3 dB at the thickness of 3.5 mm. The excellent EMW absorption performance could be put down to the hollow structure, which resulted in the multiple interface polarization and outstanding impedance matching behavior.…”

Section: Introductionmentioning

confidence: 99%

“…He argued that the dielectric properties of the as‐prepared samples increased with increasing temperature and the improved absorbing capability was primarily attributed to the impedance matching behavior and interfacial polarization effects. More recently, Zhang et al 31 . fabricated the hollow γ‐MnO 2 sphere with the RL min of –51.3 dB at the thickness of 3.5 mm.…”

Section: Introductionmentioning

confidence: 99%

Morphology‐controlled preparation and tunable electromagnetic wave absorption performance of manganese dioxide nanostructures

Qian

et al. 2022

J Am Ceram Soc

View full text Add to dashboard Cite

The development of electromagnetic wave (EMW) absorption materials with lightweight, wide absorption bandwidth, thin thickness, and strong EMW absorption performance has become a hotspot. Herein, the morphologycontrolled preparation of α-manganese dioxide (α-MnO 2 ) was successfully obtained via a facile hydrothermal method, and the EMW absorption performance of α-MnO 2 was investigated in detail. The results indicated the asobtained Mn-1.0-120 possessed the best EMW absorption performance with minimum reflection loss of −53.43 dB at about 5.2 GHz with a thickness of 4.1 mm originated from the synergistic effects of multiply scattering, dielectric loss, and magnetic loss. This contribution demonstrates that the MnO 2 has promising candidates with a tunable EMW absorption performance for applications in the electromagnetic field in the future.

show abstract

“…Electronic products are developing toward the direction of high power and high frequency, but there is a major problem for these electronic products that they come with leakage and mutual interference of microwaves [1]. In order to resolve this problem, more and more electromagnetic wave absorbing devices are added into the design of electronic products to ensure routine operation [2].…”

Section: Introductionmentioning

confidence: 99%

Novel hierarchical structure of MoS2/TiO2/Ti3C2Tx composites for dramatically enhanced electromagnetic absorbing properties

et al. 2021

Self Cite

View full text Add to dashboard Cite

In order to prevent the microwave leakage and mutual interference, more and more microwave absorbing devices are added into the design of electronic products to ensure its routine operation. In this work, we have successfully prepared MoS2/TiO2/Ti3C2Tx hierarchical composites by one-pot hydrothermal method and focused on the relationship between structures and electromagnetic absorbing properties. Supported by comprehensive characterizations, MoS2 nanosheets were proved to be anchored on the surface and interlayer of Ti3C2Tx through a hydrothermal process. Additionally, TiO2 nanoparticles were obtained in situ. Due to these hierarchical structures, the MoS2/TiO2/Ti3C2Tx composites showed greatly enhanced microwave absorbing performance. The MoS2/TiO2/Ti3C2Tx composites exhibit a maximum reflection loss value of −33.5 dB at 10.24 GHz and the effective absorption bandwidth covers 3.1 GHz (13.9–17 GHz) at the thickness of 1.0 mm, implying the features of wide frequency and light weight. This work in the hierarchical structure of MoS2/TiO2/Ti3C2Tx composites opens a promising door to the exploration of constructing extraordinary electromagnetic wave absorbents.

show abstract

Constructing γ-MnO2 hollow spheres with tunable microwave absorption properties

Cited by 13 publications

References 25 publications

MOF-derived Co@C nanoparticle anchored aramid nanofiber (ANF) aerogel for superior microwave absorption capacity

MOF-derived Co@C nanoparticle anchored aramid nanofiber (ANF) aerogel for superior microwave absorption capacity

Morphology‐controlled preparation and tunable electromagnetic wave absorption performance of manganese dioxide nanostructures

Novel hierarchical structure of MoS2/TiO2/Ti3C2Tx composites for dramatically enhanced electromagnetic absorbing properties

Contact Info

Product

Resources

About