Preparation and microwave absorption properties of polyaniline/Mn0.8Zn0.2Fe2O4 nanocomposite in 2–18 GHz

Dielectric and nano-scale free volume properties of polyaniline/polyvinyl alcohol nanocomposites

“…(4) The dielectric permitivity e 0 and loss e 00 increase with increasing the PANI content and decreases as the frequency increases. (5) The values of the frequency exponent for the correlated barrier hopping s and the binding energy of the charge carriers W m for the investigated nanocomposites decrease with increasing PANI content. (6) The dielectric permittivity, e 0 was found to be directly proportional to the relative fractional free volume, F r .…”

“…They have also biological and medical applications [4]. Polyaniline (PANI) is an extensively studied conductive polymer [5][6][7][8]. It is light-weight polymer exhibiting high conductivity, low operational voltage and high stress.…”

Dielectric spectroscopy of PVA-Ni0.5Zn0.5Fe2O4polymer nanocomposite films

“…Polymer nanocomposites have been widely investigated not for their numerous applications but to understand their physical properties [1][2][3]. In light of these studies, it was observed that adding a small fraction of the nanoparticles to the polymer matrix develop considerable properties for several applications such as electromagnetic shielding, electrostatic dissipation, charge storage capacitor systems and microwave absorbers [4][5][6]. Nano-magnetic materials are liable to serious research, since they have remarkable aspects which can be utilized in catalysis, biomedicine and environmental remediation [7].…”

Effect of manganese doping on the magnetic and magnetocaloric properties of zinc ferrite

“…MnZn ferrites attracted considerable investigations because of their potential applications in catalysis, magnetic storage, cancer therapy, medical imaging and electronic devices. [1][2][3][4][5] The chemical processes currently in vogue for the synthesis of MnZn ferrite particles include co-precipitation, [6][7][8][9] the sol-gel auto-combustion method, [10][11][12][13] the solid-state reaction method, [14][15][16] solvothermal technique, [17][18][19] microwave processing technique, [20][21][22] hydrothermal synthesis etc. [23][24][25][26][27] The solvothermal technique has the advantages of functioning at low temperatures, being a simple, lowcost synthetic process, exhibiting an ease of compositional control and producing ultrafine particles with a narrow-sized distribution.…”