Synthesis and Characterization of Ni Nanoparticles via the Microemulsion Technique and Its Applications for Energy Storage Devices

Abstract

Herein, a unique synthetic approach called microemulsion is used to create nickel nanoparticles (Ni-NPs). SEM, TEM, EDX, and XRD techniques were employed for the investigation of morphology and structures of the synthesized material. Electrons from electroactive components are transferred to external circuits by Ni-NPs’ superior electrical conductivity and interconnected nanostructures, which also provide a large number of channels for ion diffusion and additional active sites. The experimental findings showed that as a positive electrode for supercapacitors (SC), Ni-NPs had an outstanding ability to store charge, with a dominant capacitive charge storage of 72.4% when measured at 10 mV/s. Furthermore, at 1 A/g, Ni-NP electrodes exhibit a maximum capacitance of 730 F/g. Further, the Ni-NP electrode retains 92.4% of its capacitance even for 5000 cycles, highlighting possible applications for it in the developing field of renewable energy. The current study provides a new method for producing high-rate next-generation electrodes for supercapacitors.

A Redox Mediator-Free Highly Selective and Sensitive Electrochemical Aptasensor for Patulin Mycotoxin Detection in Apple Juice Using Ni–NiO Pseudocapacitive Nanomaterials

“…The BJH method unveiled the synthesized composite as nanoporous with an average pore size of 2.1 nm and pore volume of 0.056 cc/g (Figure S3). The uniform pore size (2.1 nm) distribution further facilitates rapid redox reaction to occur. Additionally, within the realm of pseudocapacitance, a high surface area typically corresponds to increased capacitance and increases the electrochemical detection sensitivity .…”

“…Porosity and surface area can be used to forecast the binding capacity and uptake behavior of an adsorbent. 35 In the relative pressure range of 0.7−0.99, the isotherm exhibits type IV characteristics with a small hysteresis loop. The calculated BET surface area of the nanocomposite was 61.65 m 2 /g (Figure 4).…”

A Review of the Current State of Magnetic Force Microscopy to Unravel the Magnetic Properties of Nanomaterials Applied in Biological Systems and Future Directions for Quantum Technologies

“…Substitution strategies of ferrite nanoparticles by europium [129] or samarium [130] offer suitable alternatives to gadolinium MNPs. Nickel nanoparticles produced by thermal decomposition are another class of MNPs with promising applications in magnetic data storage in electronic devices owing to their excellent electrical properties [131] or for the production of the next-generation electrodes for supercapacitors [132].…”

Microemulsions of Nonionic Surfactant with Water and Various Homologous Esters: Preparation, Phase Transitions, Physical Property Measurements, and Application for Extraction of Tricyclic Antidepressant Drugs from Aqueous Media

“…Nanomaterials 2023, 13, x FOR PEER REVIEW 2 of 32 [13][14][15], alternative fuels [16,17], catalysis [18][19][20], templated synthesis of nanoparticles [21][22][23][24][25][26], and environmental remediation [27][28][29][30][31].…”

“…Microemulsions have emerged over the past decades as a major research topic in colloid science. This is primarily due to their multiple areas of application, spanning fields like cosmetics [ 1 , 2 , 3 ], pharmaceuticals [ 4 , 5 , 6 , 7 ], agriculture [ 8 , 9 ], food [ 10 , 11 , 12 ], oil recovery [ 13 , 14 , 15 ], alternative fuels [ 16 , 17 ], catalysis [ 18 , 19 , 20 ], templated synthesis of nanoparticles [ 21 , 22 , 23 , 24 , 25 , 26 ], and environmental remediation [ 27 , 28 , 29 , 30 , 31 ].…”