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Flexible Bacterial Cellulose Permalloy nanocomposite xerogel sheets size scalable magnetic actuator cum electrical conductor (1701.02792v1)
Published 21 Dec 2016 in cond-mat.mtrl-sci and physics.class-ph
Abstract: Permalloy nanoparticles containing bacterial cellulose hydrogel obtained after reduction was compressed into a xerogel flexible sheet by hot pressing at 60 C at different pressures. The permalloy nanoparticles with an ordered structure have a bimodal size distribution centered around 25 nm and 190 nm. The smaller nanoparticles are superparamagnetic while the larger particles are ferromagnetic at room temperature. The sheets have a room temperature magnetisation of 20 emu/g and a coercivity of 32 Oe. The electrical conductivity of the flexible sheets increases with hot pressing pressure from 7 S/cm to 40 S/cm at room temperature.