Europium oxide nanorod-reduced graphene oxide nanocomposites towards supercapacitors

Abstract

Fast charge/discharge cycles are necessary for supercapacitors applied in vehicles including, buses, cars and elevators.

LSNR:GO template for BSA interaction, photo and sonocatalytic reductions of fluorescent dyes in aqueous solutions

“…The single sharp GO peak at 2 θ = 8.83°, despite treatment with Gt, means a stronger oxidising mixture could not disrupt the covalent bond between C atoms, but it weakened the van der Waals forces (VWF) binding the GO sheets. The GO matrix accommodated a lesser amount of LSNR dopant due to 4f #e in the doping 43 (Fig. 8a–e).…”

Nanoengineering of Lanthanide‐Doped BaGdF5‐Graphene Oxide as a Tunable‐Nanocomposite Platform for Biological Applications

“…Our nanoparticles and their nanocomposite materials are designed for use within living organisms. Because in-vitro experiments cannot accurately reproduce the conditions found within a complete organism, [2,29,[34][35][36] therefore, it is difficult to make definitive statements about the overall biological compatibility of the nanoparticles based on in-vitro experiments alone. This prompted us to use zebrafish embryos as vertebrate-animal models to assess the biocompatibilities of our as-synthesized nanomaterials.…”

“…We further explored if GO could also modulate nanocomposite's biocompatibility properties in a dose‐dependent manner. As detailed insights about the comparative behavior of nanocomposite variants and their nanocomponents are challenging to achieve solely through in‐vitro studies because in‐vitro experiments cannot replicate the conditions present in the whole organism [2,29,34–36] . So, for biocompatibility assessment, we have used whole zebrafish larvae as vertebrate‐animal model in which craniofacial development, cardiac rhythm, and their overall survivability were used as sensitive biomarkers upon exposure to nanocomposites variants or their individual nanocomponents.…”

“…[6,7,[22][23][24][25] Lately, various GObased nanocomposites materials (NCM) like TiO 2 -graphene nanocomposite, ZnO nanorods/graphene, graphene nanosheet/ Al 2 O 3 , graphene/europium oxide (Eu 2 O 3 ), metal-organic framework (MOFs) composites have been synthesized, which finds huge application in the field of magnetic, lighting, photocatalysis/catalysis, solar cell etc. [7,19,[26][27][28][29][30][31][32] Interestingly, even though the Ln 3 + doped nanoparticles have superior optical and magnetic properties than semiconductor nanocrystals and organic fluorophores, [12][13]15,18,[32][33] the nanocomposite between Ln 3 + doped ions in ternary fluoride with GO as host to offer tunable functionalization capabilities are virtually non-existing. Thus, we undertook this study to describe a successful synthesis of two variants of a nanocomposite between Ln 3 + (Eu or Tb)-doped BaGdF 5 nanoparticles and GO as host material using room temperature, taskspecific ionic liquids based one-pot 'green' synthesis approach.…”

Designing 3D Ternary Hybrid Composites Composed of Graphene, Biochar and Manganese Dioxide as High-Performance Supercapacitor Electrodes

“…A supercapacitor is a great supplement for energy conversion and high-rate power supply devices that deliver significant energy with high power density [ 1 , 2 ]. Recently, more interests have been focused on designing novel electronic devices by developing high-performance supercapacitors [ 3 , 4 , 5 , 6 ]. Due to their unique features, including high power density, fast charge and discharge rate, and long cycle life, supercapacitors are a promising substitute for current energy-storing devices [ 7 , 8 ].…”