Negative permittivity behavior in microwave frequency from cellulose-derived carbon nanofibers

Enhanced Photocatalytic Degradation with Sustainable CaO Nanorods Doped with Ce and Cellulose Nanocrystals: In Silico Molecular Docking Studies

“… 36 The hydroxyl group of cellulose has a strong electron providing effect and a low electron loss tendency because of the lone electron pair of oxygen atoms. 37 , 38 In this perspective, CNCs may be the most viable alternative for fabricating cellulosic materials for new uses. 39 , 40 Lanthanide ions have been considered as innovative dopants to affect the structural and optoelectronic characteristics of CaO.…”

“…As a result, cellulose possesses a high degree of crystallinity . The hydroxyl group of cellulose has a strong electron providing effect and a low electron loss tendency because of the lone electron pair of oxygen atoms. , In this perspective, CNCs may be the most viable alternative for fabricating cellulosic materials for new uses. , Lanthanide ions have been considered as innovative dopants to affect the structural and optoelectronic characteristics of CaO . By forming complexes with various Lewis bases, it is possible to increase the absorbability of organic contaminants on metal surfaces.…”

Negative Permittivity Behaviors Derived from Dielectric Resonance and Plasma Oscillation in Percolative Bismuth Ferrite/Silver Composites

“…Figure a,b shows the dielectric loss tangent (tan δ) of BiFeO 3 /Ag composites. Generally speaking, tan δ is the ratio of the imaginary part to the real part of the dielectric constant, which is composed of conductivity loss and polarization loss. , From Figure a, with the increase of the test frequency, tan δ increases sharply near a certain frequency point, and then decreases rapidly to form a peak. In addition, with the increase of the Ag content, the frequency point of forming the peak decreases gradually, which is roughly the same as that realized by the imaginary part of permittivity.…”

Piezoresistive Sensor Containing Lamellar MXene-Plant Fiber Sponge Obtained with Aqueous MXene Ink

“…In this regard, sustainable biomass materials (e.g., wood sheets, plant fibers, silk fabrics, and chitosan aerogels) with hierarchical porous structures have been widely adopted as building blocks for constructing 3D porous sensing materials. − Among various biomass materials, the low-cost and hydrophilic plant fibers with excellent mechanical strength and elasticity are particularly attractive. , The electrically insulating plant fibers can be transformed into porous conductive sensing materials by simple thermal carbonization and ink coating approaches. − However, carbonized plant fibers always suffer poor sensitivity and slow response time due to their poor compression capability and insufficient elasticity . Instead, a variety of conductive inks [e.g., carbon black (CB) particles, carbon nanotubes (CNT), graphene nanosheets, and metal nanoparticles/nanowires] are coated onto porous plant fibers to simultaneously improve their mechanical and electrical properties. ,− Nevertheless, the nanoparticle aggregation of carbon and metal inks easily induces nonuniform coating of conductive layers, resulting in discrete charge transport networks.…”