Fabrication of High Thermal Conductivity Carbon Nanotube Arrays by Self Assembled Fe 3 O 4 particles

Zhang, Kai; Gao, Jinhao; Xu, Bing

doi:10.1016/j.cirp.2007.05.084

Cited by 13 publications

(6 citation statements)

References 10 publications

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“…4d), we can see that it has multilayer porous structure with average diameter of $360 nm, which is bigger than that of original macroporous Fe 3 O 4 due to the loss of oxygen atoms in the molecular structure. [36][37][38][39]. In order to verify that the macroporous Fe 3 O 4 has the same behavior as the Fe 3 O 4 -NPs, the experiment of chemical vapor deposition is carried out using macroporous Fe 3 O 4 as catalyst.…”

Section: Resultsmentioning

confidence: 99%

“…The macroporous Fe 3 O 4 was heated to 950°C under a argon flow of 200 ml min À1 , then a mixed flow of H 2 (150 ml min À1 ) and CH 4 (500 ml min À1 ) and was passed through for 10 min to generate single-walled carbon nanotubes on the surface of Fe 3 O 4 , which played the role of a catalyst [36][37][38][39].…”

Section: Growth Of Carbon Nanotubes On Macroporous Fe 3 Omentioning

confidence: 99%

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Fabrication of superparamagnetic macroporous Fe3O4 and its derivates using colloidal crystals as templates

Cong

2011

Journal of Colloid and Interface Science

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Section: Resultsmentioning

confidence: 99%

Section: Growth Of Carbon Nanotubes On Macroporous Fe 3 Omentioning

confidence: 99%

Fabrication of superparamagnetic macroporous Fe3O4 and its derivates using colloidal crystals as templates

Cong

2011

Journal of Colloid and Interface Science

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“…The LED device was adhered to the CNT-TIM by dispensing some room temperature fast cured thermally conductive polymer around the CNT-TIM and letting it cure. The detailed process flow of patterning a CNT-TIM and assembling it to an HB-LED package is described elsewhere [21].…”

Section: Hb-led Testing With Cnt-timmentioning

confidence: 99%

Carbon nanotube thermal interface material for high-brightness light-emitting-diode cooling

et al. 2008

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Aligned carbon nanotube (CNT) arrays were fabricated from a multilayer catalyst configuration by microwave plasma-enhanced chemical vapor deposition (PECVD). The effects of the thickness and annealing of the aluminum layer on the CNT synthesis and thermal performance were investigated. An experimental study of thermal resistance across the CNT array interface using the modified ASTM D5470 standard was conducted. It was demonstrated that the CNT-thermal interface material (CNT-TIM) reduced the thermal interfacial resistance significantly compared with the state-of-art commercial TIM. The optimized thermal resistance of the CNT arrays is as low as 7 mm(2) K W(-1). The light performance of high-brightness light-emitting diode (HB-LED) packages using the aligned CNT-TIM was tested. The results indicated that the light output power was greatly improved with the use of the CNT-TIM. The usage of the CNT-TIM can be also extended to other microelectronics thermal management applications.

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“…Among various iron oxide phases, magnetite (Fe 3 O 4 ) and maghemite (γ-Fe 2 O 3 ) with spinel structures are widely used in biomedical applications due to their appropriate saturation magnetisation for hyperthermia, high biocompatibility, favourable magnetic properties, low price, and ease of synthesis [11]. Many studies have been conducted to find the appropriate methods and production of particles with appropriate particle size, size distribution, and composition [12,13]. Magnetic NPs can form micro size clusters due to the magnetic dipole-dipole interactions leading to obstruction of blood vessels.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of iron oxide nanoparticles for hyperthermia application: effect of ultrasonic irradiation assisted co-precipitation route

Gahrouei

Imani

Soltani

et al. 2020

Adv. Nat. Sci: Nanosci. Nanotechnol.

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In this research, maghemite (γ-Fe2O3) and magnetite (Fe3O4) nanoparticles (NPs) were synthesised by co-precipitation route with the aid of ultrasonic irradiation. The morphology, crystallite size, particle size, and structural analysis of magnetic NPs were investigated by transmission electron microscope (TEM) and X-ray diffraction (XRD). Thermal properties of magnetic NPs were also investigated by specific loss power (SLP) measurements. The X-ray diffraction patterns determined the formation of maghemite and magnetite phases. The results obtained from the TEM analysis indicated that the mean particle size of maghemite and magnetite NPs was 20 ± 0.2 nm and 22 ± 0.3 nm, respectively. Moreover, the crystallite size was calculated by modified Scherrer method. Vibration sample magnetometer (VSM) was used to evaluate magnetic behaviour of the synthesised NPs. The magnetic saturation for both γ-Fe2O3 and Fe3O4 was 44 emu g−1 and 55 emu g−1, and coercivity field was 2 Oe and 70 Oe, respectively. The SLP values for synthesised NPs were significant, and the temperature of these magnetic NPs reached 44 °C–47 °C within 10 min in the existence of an external magnetic field with an intensity of about 6 kA/m. This temperature range seems to be appropriate for hyperthermia application and destruction of cancerous cells. In addition, the size of these magnetic NPs was less than 50 nm, which facilitates better penetration of these NPs into the cancerous tumours.

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Fabrication of High Thermal Conductivity Carbon Nanotube Arrays by Self Assembled Fe 3 O 4 particles

Cited by 13 publications

References 10 publications

Fabrication of superparamagnetic macroporous Fe3O4 and its derivates using colloidal crystals as templates

Fabrication of superparamagnetic macroporous Fe3O4 and its derivates using colloidal crystals as templates

Carbon nanotube thermal interface material for high-brightness light-emitting-diode cooling

Synthesis of iron oxide nanoparticles for hyperthermia application: effect of ultrasonic irradiation assisted co-precipitation route

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