Formation of porous Fe3O4/Ag composite by self-propagating combustion for lightweight and efficient microwave absorption

Chen, Zhiwei; Li, Zhou; Cao, Yufan; Fang, Gang; Zhang, Yujing; Liu, Chuyang

doi:10.1016/j.apsusc.2023.156910

Cited by 7 publications

(1 citation statement)

References 35 publications

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“… 76 According to the free electron theory, the enhanced conductivity of the nanocomposite can also significantly improve the EM loss capacity inside the nanocomposites. 77 In addition, the presence of graphite can introduce interfaces between CoFe 2 O 4 nanoparticles and graphite led to the accumulation of charge and therefore it enhanced the EM wave dissipation ability. Moreover, the noticeable relaxation peaks in the case of the GF15–TPU nanocomposite also contribute to the EM wave absorption inside the nanocomposite.…”

Section: Resultsmentioning

confidence: 99%

Optimization of CoFe₂O₄ nanoparticles and graphite fillers to endow thermoplastic polyurethane nanocomposites with superior electromagnetic interference shielding performance

Anju,

Masař,

Machovský

et al. 2024

Nanoscale Adv.

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Section: Resultsmentioning

confidence: 99%

Optimization of CoFe₂O₄ nanoparticles and graphite fillers to endow thermoplastic polyurethane nanocomposites with superior electromagnetic interference shielding performance

Anju,

Masař,

Machovský

et al. 2024

Nanoscale Adv.

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Synergy of Rh Nanoparticles With Fe₃O₄ for Efficient Selective Catalytic Transfer Hydrogenation of Nitrostyrenes Using Stoichiometric Hydrazine Hydrate

Hu,

Guo,

Zhang

et al. 2024

Applied Organom Chemis

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Hydrazine hydrate as a hydrogen source has a good effect on nitro reduction, but overuse has environmental toxicity and is prone to over‐hydrogenation, resulting in low selectivity. Herein, we report a magnetically separable Rh/Fe3O4 (1.26 wt%) catalyst containing an optimal Rh content that can completely convert 3‐nitrostyrene to 3‐vinylaniline (> 99% selectivity) using a stoichiometric molar ratio of hydrazine hydrate (‐NO2:N2H4·H2O = 1:1.5). This is due to the synergy between Rh and Fe3O4 and the natural selectivity of N2H4·H2O for nitro. The synergy can reduce the activation energy of the reaction (36.6 kJ/mol), increasing the reduction rate of nitro group and avoiding the combination of active hydrogen species (H*) to H2 as well as the hydrogenation of N2H4 to NH3. Moreover, the active H* produced by N2H4·H2O is different from that produced by H2, and excess dose of N2H4 will inevitably yield H2 thus decline the selectivity.

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Flower-like hierarchical Fe3O4-based heterostructured microspheres enabling superior electromagnetic wave absorption

Chen,

Pan,

Guan

et al. 2024

Applied Surface Science

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Formation of porous Fe3O4/Ag composite by self-propagating combustion for lightweight and efficient microwave absorption

Cited by 7 publications

References 35 publications

Optimization of CoFe₂O₄ nanoparticles and graphite fillers to endow thermoplastic polyurethane nanocomposites with superior electromagnetic interference shielding performance

Optimization of CoFe₂O₄ nanoparticles and graphite fillers to endow thermoplastic polyurethane nanocomposites with superior electromagnetic interference shielding performance

Synergy of Rh Nanoparticles With Fe₃O₄ for Efficient Selective Catalytic Transfer Hydrogenation of Nitrostyrenes Using Stoichiometric Hydrazine Hydrate

Flower-like hierarchical Fe3O4-based heterostructured microspheres enabling superior electromagnetic wave absorption

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Formation of porous Fe3O4/Ag composite by self-propagating combustion for lightweight and efficient microwave absorption

Cited by 7 publications

References 35 publications

Optimization of CoFe2O4 nanoparticles and graphite fillers to endow thermoplastic polyurethane nanocomposites with superior electromagnetic interference shielding performance

Optimization of CoFe2O4 nanoparticles and graphite fillers to endow thermoplastic polyurethane nanocomposites with superior electromagnetic interference shielding performance

Synergy of Rh Nanoparticles With Fe3O4 for Efficient Selective Catalytic Transfer Hydrogenation of Nitrostyrenes Using Stoichiometric Hydrazine Hydrate

Flower-like hierarchical Fe3O4-based heterostructured microspheres enabling superior electromagnetic wave absorption

Contact Info

Product

Resources

About

Optimization of CoFe₂O₄ nanoparticles and graphite fillers to endow thermoplastic polyurethane nanocomposites with superior electromagnetic interference shielding performance

Optimization of CoFe₂O₄ nanoparticles and graphite fillers to endow thermoplastic polyurethane nanocomposites with superior electromagnetic interference shielding performance

Synergy of Rh Nanoparticles With Fe₃O₄ for Efficient Selective Catalytic Transfer Hydrogenation of Nitrostyrenes Using Stoichiometric Hydrazine Hydrate