@article {47341,
	title = {Bimetallic ZnFe2O4 nanosheets prepared via electrodeposition as binder-free high-performance supercapacitor electrodes},
	journal = {Applied Surface Science},
	volume = {559},
	year = {2021},
	month = {SEP },
	pages = {149951},
	type = {Article},
	abstract = {<p>Binder-free bimetallic ZnFe2O4 nanosheets were fabricated using one-step electrodeposition, which facilitated excellent electrical contact between the ZnFe2O4 nanosheets and the nickel substrate. The resultant numerous ZnFe2O4 nanosheets with their cubic spinel structures promote interfacial activity to enhance the electrochemical and Faradaic redox reactions. The metallic Zn and Fe from the cubic spinel structure of ZnFe2O4 attract electrolytic ions and increase the energy-storage capability, thus yielding a specific capacitance of 1093 F.g(-1) at a current rate of 1 A.g(-1). Different samples were prepared by varying the amount of metal salts in the electrodeposition solution while maintaining a constant ZnNt:FeSO4 concentration ratio of 1:2 for all cases. The optimal electrode composition, which yielded an energy density of 54 Wh.kg(-1) and a capacitance retention of 93.5\% at N = 5000 charge-discharge cycles, was identified.</p>},
	keywords = {Bimetallic, Electrodeposition, Energy storage device, supercapacitor, ZnFe2O4 nanosheet},
	issn = {0169-4332},
	doi = {10.1016/j.apsusc.2021.149951},
	author = {Joshi, Bhavana and Samuel, Edmund and Park, Chanwoo and Kim, Yongil and Lee, Hae-Seok and Yoon, Sam S.}
}
@article {48412,
	title = {Electrospun zinc-manganese bimetallic oxide carbon nanofibers as freestanding supercapacitor electrodes},
	journal = {International Journal of Energy Research},
	volume = {46},
	year = {2022},
	month = {DEC},
	pages = {22100-22112},
	type = {Article},
	abstract = {<p>
	Flexible, lightweight, and freestanding zinc-manganese oxide carbon nanofibers are promising materials for the fabrication of portable electronic devices. Composite nanofibers were synthesized using terephthalic acid and sodium dodecyl sulfate. Terephthalic acid improves the flexibility of the composite fibers and facilitates the diffusion of electrolytic ions. Meanwhile, sodium dodecyl sulfate aids to elevate the metal (zinc) oxide particles to the surface of the nanofibers during annealing. The texturing of the carbon nanofiber surface with ZnO enhances the electrochemical activity of the composite fibers. Parametric studies were conducted by varying the weight ratio of zinc and manganese acetates from zero to unity. The optimal case with a ratio of 0.75 produces specific capacitances of 1080 and 817 F center dot g(-1) at current densities of 1 and 10 A center dot g(-1), respectively, with a wide potential window of 1.6 V, indicating outstanding energy storage capabilities. The capacitance retention was 92\% after 10 000 galvanostatic charge-discharge cycles. The bending angle test confirmed the mechanical durability of the freestanding carbon nanofiber electrodes, and the corresponding change in the cyclic voltammetry curve was negligible.</p>
},
	keywords = {electrospinning, freestanding electrode, high-energy-density, supercapacitor, ZnMn2O4},
	issn = {0363-907X},
	doi = {10.1002/er.7719},
	author = {Joshi, Bhavana and Samuel, Edmund and Kim, Yongil and Kim, Taegun and El-Newehy, Mohamed and Aldalbahi, Ali and Yoon, Sam S.}
}
