Coconut oil capped nano iron oxide for EMI shielding application

Arya M. A.; Madhvi Tiwari; Priyesh V. More; Saurabh Parmar; Suwarna Datar; Pawan K. Khanna

Carbon: Science and Technology (Sep 2019)

Coconut oil capped nano iron oxide for EMI shielding application

Arya M. A.,
Madhvi Tiwari ,
Priyesh V. More,
Saurabh Parmar,
Suwarna Datar ,
Pawan K. Khanna

Affiliations

Arya M. A.: Department of Applied Chemistry, Defence Institute of Advanced Technology (DIAT), DRDO, Pune - 411025, Maharashtra, India.
Madhvi Tiwari: Department of Applied Chemistry, Defence Institute of Advanced Technology (DIAT), DRDO, Pune - 411025, Maharashtra, India.
Priyesh V. More: Department of Applied Chemistry, Defence Institute of Advanced Technology (DIAT), DRDO, Pune - 411025, Maharashtra, India.
Saurabh Parmar: Department of Applied Physics, Defence Institute of Advanced Technology (DIAT), DRDO, Pune - 411025, Maharashtra, India.
Suwarna Datar: Department of Applied Physics, Defence Institute of Advanced Technology (DIAT), DRDO, Pune - 411025, Maharashtra, India.
Pawan K. Khanna: Department of Applied Chemistry, Defence Institute of Advanced Technology (DIAT), DRDO, Pune - 411025, Maharashtra, India.

Journal volume & issue: Vol. 11, no. 3
pp. 28 – 40

Abstract

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The super-paramagnetic particles of large surface area with controlled size Fe2O3 nanoparticles are synthesized by addition of reducing agents along with green capping agents via Coprecipitation method which is one of the simplest and productive method to synthesize such nanoparticles in large quantities. γ-Fe2O3 NPs so-obtained as confirmed by XRD were further characterized by various analytical techniques like UV-Visible, and FT-IR Spectroscopy, SEM/EDX and PSA. Nanocomposite films of very small thickness are fabricated by blending capped and uncapped Fe2O3 nanoparticles in PVA matrix at different loading concentration and their shielding efficiency is studied using Vector Network Analyzer (VNA) in the X-band frequency (8.2-12.4 GHz) and Ku-band frequency (12.4-18 GHz). EMI SE in Ku-band was maximum for capped Fe2O3 NPs PVA film with value of -13.06 dB, better than uncapped Fe2O3 NPs/PVA film.

Published in Carbon: Science and Technology

ISSN: 0974-0546 (Online)
Publisher: Applied Science Innovations Private Limited
Country of publisher: India
LCC subjects: Technology: Chemical technology: Chemical engineering
Website: http://www.applied-science-innovations.com/cst-web-site/cst-1.html

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