Magnetic Behavior of Ni/NiO Core�Shell Nanoparticles under Electromagnetic Waves for Oil�Water Interfacial Tension Reduction

Baig, M.K. and Soleimani, H. and Yahya, N. and Sabet, M. (2019) Magnetic Behavior of Ni/NiO Core�Shell Nanoparticles under Electromagnetic Waves for Oil�Water Interfacial Tension Reduction. Journal of Materials Engineering and Performance, 28 (9). pp. 5882-5889. ISSN 10599495

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Abstract

The increasing demand for oil and gas has led to a hope of developing more efficient recovery methods. It is well known that nanoparticles adsorbed at the oil�water interface, but there is no consensus that has been reached on whether magnetic nanoparticles under electromagnetic waves affect the interfacial tension. In this paper, nickel/nickel oxide nanoparticles have been synthesized using sol�gel auto combustion method. The product was characterized using x-ray diffraction, Raman spectroscopy, field emission scanning electron microscopy, Fourier transforms infrared spectroscopy and vibrating sample magnetometer. The results show the Ni/NiO phases and the ferromagnetic nature of the sample. The Ni/NiO nanofluids were prepared to investigate the effect on oil�water interfacial tension in enhanced oil recovery under electromagnetic waves using an inverted pendant drop method. The results show a significant decrease in interfacial tension under electromagnetic waves of frequency 2.2 kHz at low wt. of Ni/NiO and at room temperature. The decrease in the interfacial tension has been observed by increasing the temperature to 90 °C using temperature controller. The decrease in the interfacial tension could be due to the interaction of oscillating B-field of waves and magnetic domains of adsorbing nanoparticles at the oil�water interface which disturbed the oil�water interface. © 2019, ASM International.

Item Type: Article
Additional Information: cited By 4
Uncontrolled Keywords: Circular waveguides; Electromagnetic waves; Field emission microscopes; Fourier transforms; Infrared spectroscopy; Magnetic domains; Nanofluidics; Nanomagnetics; Nanoparticles; Nickel oxide; Phase interfaces; Scanning electron microscopy; Sols; Surface tension; Synthesis (chemical), Auto-combustion methods; Field emission scanning electron microscopy; Fourier transforms infrared spectroscopies; Magnetic behavior; Magnetic nano-particles; Shell nanoparticles; Temperature controllers; Vibrating sample magnetometer, Enhanced recovery
Depositing User: Mr Ahmad Suhairi UTP
Date Deposited: 10 Nov 2023 03:25
Last Modified: 10 Nov 2023 03:25
URI: https://khub.utp.edu.my/scholars/id/eprint/11339

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