Sheet-on-sheet like calcium ferrite and graphene nanoplatelets nanocomposite : a multifunctional nanocomposite for high-performance supercapacitor and visible light driven photocatalysis
Israr, Muhammad (Institut Català de Nanociència i Nanotecnologia)
Iqbal, Javed (Quaid-i-Azam University. Department of Physics)
Arshad, Aqsa (International Islamic University. Department of Physics)
Gómez-Romero, Pedro 1959- (Institut Català de Nanociència i Nanotecnologia)

Fecha:	2021
Resumen:	Calcium ferrite-graphene nanoplatelets nanocomposites with sheet-on-sheet like morphology are fabricated and investigated for their physicochemical characteristics, electrochemical energy storage capacity and photocatalysis. Interestingly, the (CF) (GNPs) nanocomposite-based electrode has shown maximum specific capacitance up to 422 ​Fg¯¹ at 0. 25 Ag¯¹ with excellent cycling stability, 2. 6 times higher than that of neat CF nanosheets. Furthermore, the synergistic contribution from photocatalytic and photo-Fenton reactions enables (CF) (GNPs) nanocomposites to offer superior photocatalytic activity (99. 4% dye removal in 90 ​min). The inclusion of GNPs significantly enhances the charge carriers separation and transportation. The excellent electrochemical efficiency of (CF) (GNPs) could be attributed to the 2D interfacial interactions that provide a better charge transport at electrode/electrolyte interface. These interactions are also responsible for creating effective charge transport pathways and efficient e/h separation leading to rapid dye-degradation, which make the material potential for remediation of water pollution and energy storage systems.
Derechos:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades.
Lengua:	Anglès
Documento:	Article ; recerca ; Versió sotmesa a revisió
Materia:	Graphene ferrites nanocomposite ; Nanosheets ; Energy storage ; Photocatalysis
Publicado en:	Journal of solid state chemistry, Vol. 293 (Jan. 2021) , art. 121646, ISSN 1095-726X

DOI: 10.1016/j.jssc.2020.121646

Preprint 23 p, 1.4 MB

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