Biomass-derived porous carbon for microwave absorption

Zhang, Runa; Qiao, Jing; Zhang, Xue; Yang, Yuguo; Zheng, Sinan; Li, Bin; Liu, Wei; Liu, Jiurong; Zeng, Zhihui

doi:10.1016/j.matchemphys.2022.126437

Cited by 41 publications

(15 citation statements)

References 69 publications

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“…The possible shielding mechanism is shown in Figure 6 b. In addition, this high SE is superior to that of many recently reported biomass-based EMI shielding products, such as the Cs/epoxy (28 dB) [ 14 ], PEI/PA@AgNWs (32.9 dB) [ 16 ], honeycomb-like lignin-based carbon/graphene foams (28.5–70.5 dB) [ 51 ], loofah sponge-derived carbon/paraffin/urethane (32 dB) [ 52 ], epoxy/CNT sponge (33 dB) [ 53 ], Fe 3 O 4 @reduced graphene oxide (rGO)/natural rubber (37 dB) [ 54 ], rGO/polystyrene (45.1 dB) [ 55 ], multi-walled carbon nanotubes (MWCNT)/water-borne polyurethane (49.2 dB) [ 56 ], ALC based on sugarcane (51 dB) [ 15 ], SC-Co-G (55 dB) [ 21 ], and cotton fiber-derived carbon/CoFe alloy (~62 dB) [ 57 ], as summarized in Table 2 . To study the effect of structural damages of the carbonized needles on the EMI shielding property, we blended the powder-like pore-rich PNCFs@graphene sample with paraffin, and the sample shows a similar EMI SE value, as compared to that of the sample based on non-grinding pore-rich PNCFs@graphene.…”

Section: Resultsmentioning

confidence: 82%

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Pore-Rich Cellulose-Derived Carbon Fiber@Graphene Core-Shell Composites for Electromagnetic Interference Shielding

Yang

Wan

Huang³

et al. 2022

Nanomaterials

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Because of serious electromagnetic pollution caused by the widespread use of radio frequency equipment, the study of electromagnetic interference (EMI) shielding materials has been a long-standing topic. Carbon fiber and graphene composites have great potential as EMI shielding materials due to their unique microstructure and electrical conductivity. In this work, a novel kind of core-shell composite is fabricated based on the pore-rich pine needles-derived carbon fibers (coded as PNCFs) core and the graphene shell. The pore-rich PNCFs are created by KOH activation, and the integration between the pore-rich PNCFs and the graphene relies on a plasma-enhanced chemical vapor deposition (PECVD) method. The conductivity of the pore-rich PNCFs@graphene core-shell composite reaches 4.97 S cm−1, and the composite has an excellent EMI shielding effectiveness (SE > 70 dB over X-band (8.2–12.4 GHz)) and achieves a maximum value of ~77 dB at 10.4 GHz, which is higher than many biobased EMI shielding materials in the recent literature. By calculation and comparison, the large absorption loss (accounting for 90.8% of total loss) contributes to reducing secondary radiation, which is quite beneficial for stealth uses. Thus, this work demonstrates a promising design method for the preparation of green high-performance composites for EMI shielding and stealth applications (such as warcrafts, missiles, and stealth wears).

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Section: Resultsmentioning

confidence: 82%

“…In most cases, the dropped pine needles are discarded and decay into the soil. There is evidence that pine needle-derived porous carbon has excellent electromagnetic wave absorption properties [ 16 ]. Further studies on the electromagnetic shielding properties of pine needle-derived carbon are necessary.…”

Section: Introductionmentioning

confidence: 99%

Pore-Rich Cellulose-Derived Carbon Fiber@Graphene Core-Shell Composites for Electromagnetic Interference Shielding

Yang

Wan

Huang³

et al. 2022

Nanomaterials

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“…A high 3 ′′ and low 3 ′ indicate a high dielectric loss in the material. 36 As shown in Fig. 4b, adding rGO and CNT increases the dielectric loss capability of the material, which is more signicantly increased for PIC/CNT.…”

Section: Resultsmentioning

confidence: 88%

Polyimide aerogel-derived amorphous porous carbon/crystalline carbon composites for high-performance microwave absorption

et al. 2023

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“…To construct efficient microwave absorbers that are “thin, lightweight, wide, and strong”, various materials, such as carbon-, , oxide-, sulfide-, and MXene-based − materials, have been widely studied. Carbon-based materials such as nanotubes, sponges, carbon fibers, graphene, and their metal oxide-based composites have been intensively studied because they exhibit fascinating wave-absorbing properties owing to their unique dielectric structures. − While these carbon-based materials have good wave-absorbing performance, their applications are limited by their high cost and difficult synthesis . Owing to the excellent properties of carbon-based materials, researchers have used a simple biomass-derived method to develop a new method for preparation of carbon-based materials.…”

Section: Introductionmentioning

confidence: 99%

“…12−15 While these carbonbased materials have good wave-absorbing performance, their applications are limited by their high cost and difficult synthesis. 16 Owing to the excellent properties of carbonbased materials, researchers have used a simple biomass-derived method to develop a new method for preparation of carbon-based materials. Biomass materials have become a new research direction for absorbing materials because of their abundant yield, diverse structures, environmental friendliness, low cost, and sustainability.…”

Section: ■ Introductionmentioning

confidence: 99%

Co/CoO/Lotus Seedpod Nanoporous Carbon Composites Reduced from Co₃O₄ for High-Performance Microwave Absorbers

Qin

Kimura

et al. 2023

ACS Appl. Nano Mater.

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To obtain microwave-absorbing materials with high absorptivity, broad bandwidth, and lightweight properties, Co 3 O 4 / lotus seedpod carbon (Co 3 O 4 /LSC) composites were reduced under a hydrogen pressure of 3 MPa. As the reduction temperature increases, the phases of the Co 3 O 4 /LSC composites change from Co 3 O 4 to CoO/Co. At 200 °C (named as the 3200 nanocomposite), partial Co 3 O 4 changes to CoO, the Co 3 O 4 completely transfers into CoO with a little Co detectable at 300 °C (3300 nanocomposite), and the concentration of Co increases more than that of the 3300 nanocomposite once temperature is raised to 400 °C (3400 nanocomposite). Moreover, the morphology of the Co 3 O 4 /LSC composites changes from irregular particles to a sintering state in the reduction process. When 3200, 3300, and 3400 nanocomposites are compared, the 3400 nanocomposite exhibits the highest permittivity and best microwave absorption performance: the 3400 nanocomposite exhibits a strong reflection loss of −60.63 dB (2.0 mm, 18.0 GHz) and an absorption bandwidth of 14.10 GHz (4.7 mm, 3.9−18.0 GHz). The hydrogenated LSC/Co 3 O 4 nanocomposite has a strong absorption capacity and wide effective bandwidth, is lightweight, and can be used as a high-performance biomass-based microwave-absorbing material.

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Biomass-derived porous carbon for microwave absorption

Cited by 41 publications

References 69 publications

Pore-Rich Cellulose-Derived Carbon Fiber@Graphene Core-Shell Composites for Electromagnetic Interference Shielding

Pore-Rich Cellulose-Derived Carbon Fiber@Graphene Core-Shell Composites for Electromagnetic Interference Shielding

Polyimide aerogel-derived amorphous porous carbon/crystalline carbon composites for high-performance microwave absorption

Co/CoO/Lotus Seedpod Nanoporous Carbon Composites Reduced from Co₃O₄ for High-Performance Microwave Absorbers

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Biomass-derived porous carbon for microwave absorption

Cited by 41 publications

References 69 publications

Pore-Rich Cellulose-Derived Carbon Fiber@Graphene Core-Shell Composites for Electromagnetic Interference Shielding

Pore-Rich Cellulose-Derived Carbon Fiber@Graphene Core-Shell Composites for Electromagnetic Interference Shielding

Polyimide aerogel-derived amorphous porous carbon/crystalline carbon composites for high-performance microwave absorption

Co/CoO/Lotus Seedpod Nanoporous Carbon Composites Reduced from Co3O4 for High-Performance Microwave Absorbers

Contact Info

Product

Resources

About

Co/CoO/Lotus Seedpod Nanoporous Carbon Composites Reduced from Co₃O₄ for High-Performance Microwave Absorbers