Microwave absorption properties and infrared emissivities of ordered mesoporous C–TiO2 nanocomposites with crystalline framework

Wang, Tao; He, Jie; Zhou, Jianhua; Tang, Jing; Guo, Yong; Ding, Xiaochun; Wu, Shichao; Zhao, Jianqing

doi:10.1016/j.jssc.2010.09.028

Cited by 54 publications

(23 citation statements)

References 54 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Especially a family of OMC named CMK-3 induced by SBA-15 template [4] has drawn more attention recently, which find application in many fields, such as adsorption and separation, catalysis, energy storage, and drug delivery [5]. More recently, OMC are considered good candidates for microwave applications due to their large dielectric loss, such as electromagnetic interference (EMI) shielding and electromagnetic (EM) wave absorbing [6][7][8][9][10]. Compared with magnetic absorbers, dielectric OMC absorbers are much more light-weight, but have much higher dielectric constants and in turn do not match up to their magnetic loss [11].…”

Section: Introductionmentioning

confidence: 99%

Enhanced microwave performance of highly ordered mesoporous carbon coated by Ni2O3 nanoparticles

Wang

et al. 2012

Journal of Alloys and Compounds

101

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Enhanced microwave performance of highly ordered mesoporous carbon coated by Ni2O3 nanoparticles

Wang

et al. 2012

Journal of Alloys and Compounds

101

View full text Add to dashboard Cite

“…Furthermore, carbon doping increases the conductivity of titania and improves the charge transfer from the bulk to the surface sites where charge carriers participate in reactions [29]. Several studies have been reported on carbon-doped mp-TiO 2 (C-mp-TiO 2 ) [199][200][201][202][203][204]. C-mp-TiO 2 films were synthesized by a sol-gel process combined with hydrothermal treatment using glucose as a source of carbon and a structure-directing agent [199].…”

Section: Carbon Dopingmentioning

confidence: 99%

Synthesis and Catalytic Applications of Non-Metal Doped Mesoporous Titania

et al. 2017

View full text Add to dashboard Cite

Mesoporous titania (mp-TiO 2 ) has drawn tremendous attention for a diverse set of applications due to its high surface area, interfacial structure, and tunable combination of pore size, pore orientation, wall thickness, and pore connectivity. Its pore structure facilitates rapid diffusion of reactants and charge carriers to the photocatalytically active interface of TiO 2 . However, because the large band gap of TiO 2 limits its ability to utilize visible light, non-metal doping has been extensively studied to tune the energy levels of TiO 2 . While first-principles calculations support the efficacy of this approach, it is challenging to efficiently introduce active non-metal dopants into the lattice of TiO 2 . This review surveys recent advances in the preparation of mp-TiO 2 and their doping with non-metal atoms. Different doping strategies and dopant sources are discussed. Further, co-doping with combinations of non-metal dopants are discussed as strategies to reduce the band gap, improve photogenerated charge separation, and enhance visible light absorption. The improvements resulting from each doping strategy are discussed in light of potential changes in mesoporous architecture, dopant composition and chemical state, extent of band gap reduction, and improvement in photocatalytic activities. Finally, potential applications of non-metal-doped mp-TiO 2 are explored in water splitting, CO 2 reduction, and environmental remediation with visible light.

show abstract

“…Wang et al suggest using it for simultaneous microwave absorption and infrared camouflage. 104,105 Metamaterials are often described as artificial structures appearing as a material at some frequency range, with properties that cannot be found in nature. The properties of metamaterials are gained from the structure instead of the material.…”

Section: Biomimic and Metamaterialsmentioning

confidence: 99%

A review of materials for spectral design coatings in signature management applications

Andersson

Åkerlind

2014

SPIE Proceedings

View full text Add to dashboard Cite

The current focus in Swedish policy towards national security and high-end technical systems, together with a rapid development in multispectral sensor technology, adds to the utility of developing advanced materials for spectral design in signature management applications. A literature study was performed probing research databases for advancements. Qualitative text analysis was performed using a six-indicator instrument: spectrally selective reflectance; low gloss; low degree of polarization; low infrared emissivity; non-destructive properties in radar and in general controllability of optical properties. Trends are identified and the most interesting materials and coating designs are presented with relevant performance metrics. They are sorted into categories in the order of increasing complexity: pigments and paints, one-dimensional structures, multidimensional structures (including photonic crystals), and lastly biomimic and metamaterials. The military utility of the coatings is assessed qualitatively. The need for developing a framework for assessing the military utility of incrementally increasing the performance of spectrally selective coatings is identified.

show abstract

Microwave absorption properties and infrared emissivities of ordered mesoporous C–TiO2 nanocomposites with crystalline framework

Cited by 54 publications

References 54 publications

Enhanced microwave performance of highly ordered mesoporous carbon coated by Ni2O3 nanoparticles

Enhanced microwave performance of highly ordered mesoporous carbon coated by Ni2O3 nanoparticles

Synthesis and Catalytic Applications of Non-Metal Doped Mesoporous Titania

A review of materials for spectral design coatings in signature management applications

Contact Info

Product

Resources

About