3D highly porous microspherical morphology of NiO nanoparticles for supercapacitor application

Sheokand, Sandeep; Kumar, Prashant; Jabeen, Shakra; Samra, Kawaljeet Singh

doi:10.1007/s10008-022-05366-w

Cited by 14 publications

(4 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Magnetic experiments on nanocrystalline NiO show that smaller nanoparticles with Ms values between 1.2 and 1.8 emu/g behave superparamagnetic when compared with Ms values between 0.1 and 0.4 emu/g. Rhamnolipids were used as the surfactant together with n‐heptane, water, and the microemulsion technique by Sheokand et al 22 to study the crystalline and spherical shape NiO nanostructures. For pH levels of 11.6, 12.0, and 12.5 correspondingly, NiO particles of 86, 63, and 47 nm were produced.…”

Section: Literature Reviewmentioning

confidence: 99%

Biosynthesis of a tri‐metallic nanoalloy for magnetic and biomedical applications

Pushparaj¹,

Raj²,

Rani³

et al. 2023

Applied Organom Chemis

View full text Add to dashboard Cite

The tri‐metallic magnetic nanoalloy synthesized via the eco‐friendly procedure discussed here contains cobalt (Co), nickel (Ni), and zirconium (Zr) metals in a 3:1:1 M ratio (Co3O4.NiO.ZrO2 nanoalloy). Two different plant extracts which are rich in biologically active compounds from Spermacoce hispida and Vernonia cinereum were combined to get a multispecies nanoalloy with magnetic properties and medicinal values. The Fourier transform infrared, X‐ray diffraction, and transmission and scanning electron microscopes analyses confirmed the spherical shape of the bioinspired Co3O4.NiO.ZrO2 nanoalloy. The average size of our nanoalloy was 32 nm, but the individual nanoparticles are between 21 and 73 nm in size. A vibrating sample magnetometer study of the magnetic characteristics of the nanoalloy reveals strong saturation magnetization (12.42 emu/g), low retentivity (Mr), and low coercivity (Hc) (282.36 Oe). The higher saturation magnetization in nanoalloy is attributed to their larger particle size, a high degree of crystalline structure, and slight external spinning deformation. The low coercive field (Hc) value reveals the unique soft nature of our nanoalloy. The disc diffusion study confirms that a 6.3 μg/mL solution of the nanoalloy kills almost 96% of the harmful bacteria like Bacillus subtilis (29 mm), Bacillus cereus (26 mm), and Escherichia coli (21 mm). It shows a moderate effect of 85% killing factor against Staphylococcus albus (17 mm), Pseudomonas aeruginosa (13 mm), and Klebsiella pneumoniae (15 mm) bacteria.

show abstract

Section: Literature Reviewmentioning

confidence: 99%

Biosynthesis of a tri‐metallic nanoalloy for magnetic and biomedical applications

Pushparaj¹,

Raj²,

Rani³

et al. 2023

Applied Organom Chemis

View full text Add to dashboard Cite

show abstract

“…62 NiO is a nontoxic, eco-friendly and low-cost semiconductor material with good catalytic properties, high mechanical strength, high surface area, good chemical stability, high theoretical capacity and good cycling performance 63 and broadly applied in gas sensors, electrochemical sensors, solar cells, energy storage devices and adsorbents. 64 Therefore, in this work, the rGO nanosheets were modified with NiO nanoparticles to enhance their removal efficiency and eliminate toxic substances from aquatic environments. The asprepared NiO/rGO nanocomposite was further functionalized with polyvinyl alcohol (PVA) to enhance its long-term stability.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Fabrication of a symbiotic polyvinyl alcohol-functionalized NiO/rGO nanoadsorbent for control of bisphenol-a removal

Buledi,

Solangi,

Ali

et al. 2024

New J. Chem.

View full text Add to dashboard Cite

show abstract

“…Recently, the attention of researchers in this field has been attracted by the methods of forming anisotropic nanomaterials with a hierarchical organization of the microstructure and a developed surface which, in turn, accelerates the charge transfer processes and enables a significant improvement of the corresponding materials’ electrophysical properties [ 22 , 23 , 24 , 25 , 26 , 27 ]. According to data from the literature, one of the most convenient methods for obtaining self-organized nanomaterials is by using the hydrothermal method which, depending on the process conditions, allows for the formation of solid phase particles of different shapes and dispersions and is characterized by the necessary crystal structure type and crystallinity degree [ 28 , 29 , 30 , 31 ]. In the majority of works devoted to the hydrothermal synthesis of nickel hydroxide or nickel oxide, the base medium is provided by sodium hydroxide, ammonia hydrate, and urea [ 32 , 33 , 34 , 35 , 36 , 37 ].…”

Section: Introductionmentioning

confidence: 99%

Hydrothermal Synthesis of Nickel Oxide and Its Application in the Additive Manufacturing of Planar Nanostructures

et al. 2023

View full text Add to dashboard Cite

The hydrothermal synthesis of nickel oxide in the presence of triethanolamine was studied. Furthermore, the relationship between the synthesis conditions, thermal behavior, crystal structure features, phase composition and microstructure of semi-products, and the target oxide nanopowders was established. The thermal behavior of the semi-products was studied using a simultaneous thermal analysis (in particular, using one that involved thermogravimetric analysis and differential scanning calorimetry, TGA/DSC). An X-ray diffraction (XRD) analysis revealed that varying the triethanolamine and nickel chloride concentration in the reaction system can govern the formation of α- and β-Ni(OH)2-based semi-products that contain Ni(HCO3)2 or Ni2(CO3)(OH)2 as additional components. The set of functional groups in the powders was determined using a Fourier-transform infrared (FTIR) spectroscopy analysis. Using microextrusion printing, a composite NiO—(CeO2)0.80(Sm2O3)0.20 anode film was fabricated. Using XRD, scanning electron microscopy (SEM), and atomic force microscopy (AFM) analyses, it was demonstrated that the crystal structure, dispersity, and microstructure character of the obtained material correspond to the initial nanopowders. Using Kelvin probe force microscopy (KPFM) and scanning capacitance microscopy (SCM), the local electrophysical properties of the printed composite film were examined. The value of its conductivity was evaluated using the four-probe method on a direct current in the temperature range of 300–650 °C. The activation energy for the 500–650 °C region, which is of most interest in the context of intermediate-temperature SOFCs working temperatures, has been estimated.

show abstract

3D highly porous microspherical morphology of NiO nanoparticles for supercapacitor application

Cited by 14 publications

References 34 publications

Biosynthesis of a tri‐metallic nanoalloy for magnetic and biomedical applications

Biosynthesis of a tri‐metallic nanoalloy for magnetic and biomedical applications

Fabrication of a symbiotic polyvinyl alcohol-functionalized NiO/rGO nanoadsorbent for control of bisphenol-a removal

Hydrothermal Synthesis of Nickel Oxide and Its Application in the Additive Manufacturing of Planar Nanostructures

Contact Info

Product

Resources

About