@article {45722,
	title = {Polypropylene-based conducting nanocomposites: effect of aspect ratio of second conducting filler on the electrical percolation},
	journal = {Journal of Thermoplastic Composite Materials},
	volume = {30},
	year = {2017},
	month = {JUN},
	pages = {840-854},
	type = {Article},
	abstract = {<p>Powder-mixed polypropylene (PP)-graphite binary composites exhibit an electrical percolation threshold at 10 wt\% graphite signifying insulator-semiconductor transition. Three conducting fillers such as carbon black (CB), sonicated expanded graphite (s-ExGr), and carbon nanofiber (CNF) are mixed with PP-7 wt\% graphite binary composites. The electrical percolation threshold has been found to have inverse relation to the aspect ratio of second conducting fillers in hybrid composites. The aspect ratio of second conducting fillers varies in the order CB \&lt; ExGr \&lt; CNF. The electrical percolation threshold is found to vary for the hybrid composites as 2.2 wt\% for CB addition, 0.75 wt\% for ExGr addition, and 0.2 wt\% for CNF addition in the PP-7 wt\% graphite binary composites. When the aspect ratio of second conducting fillers increases, they reduce the barrier for the charge transport. The second conducting fillers occupy the interspace of graphite and alternating current studies show that the effective dielectric constant increases with the concentration of second conducting filler in the hybrid composites. The composites are characterized by transmission electron microscopy and scanning electron microscopy. Melt-crystallized PP-7 wt\% graphite-CNF composites exhibit higher percolation threshold due to decrease in the polymer viscosity which increases the interparticulate distance.</p>},
	keywords = {carbon nanofiber, Conducting polymer composites, Electrical properties, graphite nanosheets, hybrid composites, percolation, scanning, transmission electron microscopy},
	issn = {0892-7057},
	doi = {10.1177/0892705715614063},
	author = {Ramanujam, B. T. S. and Radhakrishnan, S. and Deshpande, S. D.}
}
@article {48147,
	title = {Facile synthesis of nanocomposites of CNF-Sn and C-Sn microspheres: Prospective field emitter},
	journal = {Journal of Alloys and Compounds},
	volume = {907},
	year = {2022},
	month = {JUN },
	pages = {164318},
	type = {Article},
	abstract = {<p>
	We report synthesis of Carbon nanofibers (CNFs) and hybrid nanocomposites namely, CNF-Sn and C-Sn microspheres using simple electrospinning technique, followed by annealing in controlled atmosphere. The as-prepared materials were characterized using X-raydiffraction (XRD), Field emission scanning electron microscopy (FESEM), Transmission electron microscopy (TEM), Ultra-violet photoelectron spectroscopy (UPS), and Raman spectroscopy to reveal their physico-chemical properties. As carbon family members are potential materials for field emission (FE) based applications, owing to their high aspect ratio FE characteristics of the synthesized materials were explored at base pressure of 1 x 10(-8) mbar. Interestingly, the hybrid nanocomposite CNF-Sn and C-Sn emitters showed improved FE behavior (with the turn-on field of 3.4 and 1.36 V/mu m, respectively) in contrast to the pristine CNFs emitter (turn-on field of 5.4 V/mu m). Furthermore, the maximum emission current density is substantially enhanced, 7.75 and 4.6 mA/cm(2) for CNF-Sn and C-Sn emitters, respectively. The improvement in the FE behavior of nanocomposite emitters is attributed to the combined effect of morphology and modulation of electronic properties at the interface of nanocomposites. The results confirm that FE characteristics of pristine nanostructures can be greatly improved upon formation of their nanocomposites and this approach can be extended to other nanostructures for improving their multi-functionalities. (c) 2022 Elsevier B.V. All rights reserved.</p>
},
	keywords = {carbon nanofiber, electrospinning, field emission, Nanocomposite, Tin},
	issn = {0925-8388},
	doi = {10.1016/j.jallcom.2022.164318},
	author = {Badadhe, Satish S. and Yadav, Poonam and Suryawanshi, Sachin and More, Mahendra A.}
}
