Electromagnetic wave absorption properties of NiCoP alloy nanoparticles decorated on reduced graphene oxide nanosheets

Ye, Weichun; Fu, Jiajia; Wang, Qin; Wang, Chunming; Xue, Desheng

doi:10.1016/j.jmmm.2015.07.087

Cited by 44 publications

(11 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…[14][15][16][17] In addition, magnetic nanoparticles (Fe, Co, Ni) can also be combined with graphene to form composite materials, and have a signicant effect in the eld of EM wave absorption. [18][19][20][21][22] Among them, the research on Ni is the most. Chen et al, 23 grew a hexagonal close-packed Ni nanocrystal on the surface of graphene by a one-step solution phase method, and a minimum reection loss (RL) of À17.8 dB occurred when the sample thickness was 5 mm.…”

Section: Introductionmentioning

confidence: 99%

One-step hydrothermal synthesis of Ni–Fe–P/graphene nanosheet composites with excellent electromagnetic wave absorption properties

Zhao

Wang

et al. 2019

RSC Adv.

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

One-step hydrothermal synthesis of Ni–Fe–P/graphene nanosheet composites with excellent electromagnetic wave absorption properties

Zhao

Wang

et al. 2019

RSC Adv.

View full text Add to dashboard Cite

show abstract

“…Nevertheless, single RGOs could not achieve ideal microwave absorption performance due to their high permittivity and low permeability, which would lead to unfavorable electromagnetic impedance matching. In order to mitigate the dilemma, a lot of research has been conducted by combining RGO with magnetic components, such as FeCo [12], Ni [13], NiCoP [14], CoFe 2 O 4 [15], and Fe 3 O 4 [16]. For example, Xu et al synthesized RGO/Ni hybrids with different mass ratios to obtain an optimal reflection loss value of −39.03 dB at 13 GHz [13].…”

Section: Introductionmentioning

confidence: 99%

“…For example, Xu et al synthesized RGO/Ni hybrids with different mass ratios to obtain an optimal reflection loss value of −39.03 dB at 13 GHz [13]. Xue et al synthesized NiCoP/RGO nanocomposites by one-pot reaction in order to improve dielectric and magnetic loss and thus enhance the reflection loss [14]. Chu et al synthesized α-Fe 2 O 3 /RGO with a maximum reflection loss of up to −42.8 dB at a thickness of 1.8 mm [16].…”

Section: Introductionmentioning

confidence: 99%

Reduced Graphene Oxide-Wrapped Super Dense Fe3O4 Nanoparticles with Enhanced Electromagnetic Wave Absorption Properties

Wang

Chen

et al. 2019

Nanomaterials

View full text Add to dashboard Cite

The efficient preparation of electromagnetic wave absorbing materials with low density and excellent electromagnetic wave absorption remains a considerable challenge. In this study, reduced graphene oxide (RGO) wrapped Fe3O4 nanoparticles (NPs) were synthesized based on one-step reaction by the reduction of graphene oxide (GO), and the generation of super-fine Fe3O4 NPs was achieved. The phase structure, chemical composition, micromorphology, and magnetism were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscope (XPS), scanning electron microscope (SEM), transmission electron microscope (TEM), and vibrating sample magnetometer (VSM), respectively. The electromagnetic characteristics were evaluated on a vector network analyzer by the coaxial line method. The results showed that super-fine Fe3O4 NPs with an average size of 6.18 nm are densely distributed on the surface of graphenes. The RGO/Fe3O4 nanocomposites exhibited excellent microwave absorption properties with a minimum reflection loss (RL) of up to −55.71 dB at 6.78 GHz at 3.5 mm thickness and the highest effective absorption bandwidth with RL values exceeding −10 dB is 4.76 GHz between 13.24 and 18 GHz at 1.7 mm thickness. This work provides a concise method for the development of RGO supported super dense Fe3O4 nanocomposites for high performance electromagnetic absorption applications.

show abstract

“…наук, старший научный сотрудник § Автор для переписки частот, -ферромагнитных металлоуглеродных нанокомпозитов. К таким системам можно отнести нанокомпозитные материалы, представляющие собой высокодисперсные системы «твердое в твердом», содержащие наноразмерные частицы сплавов NiCo [11][12][13][14][15]. Разработка новых видов радиопоглощающих материалов актуальна в связи с интенсивным развитием устройств СВЧ−радиоэлектроники, увеличением их мощности и активным внедрением во все сферы жизнедеятельности [16][17][18].…”

Section: Introductionunclassified

The controllable magnetic properties of Nico/C nanocomposites

Yakushko

Кожитов

Муратов

et al. 2019

Izv. vysš. učebn. zaved., Mater. èlektron. teh.

View full text Add to dashboard Cite

The NiCo/C metal-carbon nanocomposites based on the NiCl2/CoCl2/Polyacrylonitrile (PAN) precursors were synthesized using IR heating. The results of studies of NiCo/C nanocomposites by X-ray phase analysis, transmission electron microscopy, and vibration magnetometry showed the dependence of the structure and properties of NiCo/C nanocomposites on the synthesis temperature, concentration, and metal ratio in the precursor. According to the results of the X-ray phase analysis, it was found that during the IR pyrolysis of the precursor, NiCo metal nanoparticles are stabilized in the carbon matrix, an increase in the synthesis temperature from 350 to 800 °C leads to an increase in the average size of nio nanoparticles from 10 to 80 nm, it is established that the formation of the alloy occurs due to the gradual dissolution of cobalt in nickel with the simultaneous transition of cobalt from the hcp modification to FCC. The structure of nanocomposites was shown by transmission electron microscopy of samples synthesized at 600 °C. It was found that with an increase in the metal concentration in the precursor from 10 to 40 wt.%, the average size of NiCo nanoparticles increases and the concentration of nanoparticles in the carbon matrix increases. The study of the magnetic properties of nanocomposites showed that with an increase in the content of metals in the precursor from 10 to 40 wt.%, an almost linear increase in the saturation magnetization from 5.94 to 25.7 A · m2/kg is observed. A change in the ratio of metals from Ni : Co = 4 : 1 to Ni : Co = 1 : 4 causes an increase in magnetization from 11.46 to 23.3 A · m2/kg.

show abstract

Electromagnetic wave absorption properties of NiCoP alloy nanoparticles decorated on reduced graphene oxide nanosheets

Cited by 44 publications

References 34 publications

One-step hydrothermal synthesis of Ni–Fe–P/graphene nanosheet composites with excellent electromagnetic wave absorption properties

One-step hydrothermal synthesis of Ni–Fe–P/graphene nanosheet composites with excellent electromagnetic wave absorption properties

Reduced Graphene Oxide-Wrapped Super Dense Fe3O4 Nanoparticles with Enhanced Electromagnetic Wave Absorption Properties

The controllable magnetic properties of Nico/C nanocomposites

Contact Info

Product

Resources

About