Microwave-Assisted Synthesis of Nickel Oxide Nanoparticles Using Coriandrum sativum Leaf Extract and Their Structural-Magnetic Catalytic Properties

Abstract

In this paper, using Coriandrum sativum L., a leaf-extracted, assisted microwave method (MM) was used to synthesize nickel oxide formation. We synthesized nickel oxide nanoparticles (NiO) with a crystal size in the range of 15–16 nm by a Coriandrum sativum leaf-assisted microwave method (LAMM). The synthesized materials show that an X-ray diffraction (XRD) study confirmed the formation of a single phase structure exhibiting a crystallite size in the range of 15–16 nm using Scherrer’s method. The nickel oxide prepared by the MM had a surface area of 60.35 m2/g, pore volume of 0.9427 cm3/g and an average pore diameter of 13.27 Å. Surface morphology was analyzed by the scanning electron microscope (SEM), X-ray photoelectron spectroscope, Brunauer-Emmett-Teller (BET) analysis, and the vibrating sample magnetometer (VSM). Catalytic activity (CA) tended toward the oxidation of styrene to benzaldehyde. The inexpensive catalyst tested is likely effective as a catalyst due to synergistic interactions between metal oxides with high dispersion. In comparison with other findings, LAMM is easy and eco-friendly. The current study obtained nanocrystalline NiO that was suitable for potential applications in catalysis. The synthesized NiO could potentially be used in therapeutic field due to their competent antibacterial activity.

Metal–Acid Synergy: Hydrodeoxygenation of Anisole over Pt/Al‐SBA‐15

“…The efficacy of small Pt particles for anisole HDO to methoxycyclohexane contrasts with that of phenol HDO over Ni/SiO 2 and 2‐(2‐methoxyphenoxy)‐1‐phenylethanol HDO over Ru/NbOPO 4 for which deoxygenation products dominate; this difference may be a consequence of the greater oxophilicity of Ni and Ru compared to Pt, and hence the retention of Lewis acidic NiO x and RuO x sites under the reaction conditions . DFT calculations and microkinetic analysis suggest that the hydrogenation of the aromatic ring in phenolics is favored over dissociation to benzene .…”

Influence of Pamoic Acid as a Complexing Agent in the Thermal Preparation of NiO Nanoparticles: Application to Electrochemical Water Oxidation

“…Over the past two decades, bulk and nanoscale nickel oxide (NiO) have attracted attention for their high stability, [1][2][3][4][5][6][7][8][9] nontoxicity, [5,7] and anomalous chemical, [9][10][11][12] electrochemical, [5][6][7][8][13][14][15][16][17][18][19][20] electronic, [3,21,22] magnetic, [2,9,23] and catalytic [2,4,9,24] and optical [10,13,22,24] properties. NiO nanoparticles (NiONPs), in particular, are used in a variety of fields as electrochemical sensors, [15] biosensors, [6,16] electrochromic windows, [13] gas sensors, [11,12] super capacitor, [17] batteries, [5] fuel cells,…”

“…Over the past two decades, bulk and nanoscale nickel oxide (NiO) have attracted attention for their high stability, nontoxicity,, and anomalous chemical, electrochemical,, electronic,,, magnetic,,, and catalytic,,, and optical,,, properties. NiO nanoparticles (NiONPs), in particular, are used in a variety of fields as electrochemical sensors, biosensors,, electrochromic windows, gas sensors,, super capacitor, batteries, fuel cells,, photovoltaic cell, electrochemical water splitting,, catalysis,,, and photocatalysis . The broad applicability of nanoscale NiO relies on the material's high surface area and interesting properties, including chemical, electrochemical, and catalytic properties, which are not present in the bulk material.…”

“…The broad applicability of nanoscale NiO relies on the material's high surface area and interesting properties, including chemical, electrochemical, and catalytic properties, which are not present in the bulk material. To meet the high demand for this nanoscale material, several synthetic methods have been developed based on hydrothermal,,,, sol‐gel,,, hot‐injection, co‐precipitation, microwave,, reverse micelle templated, electrochemical and pulsed laser ablation techniques, as well as techniques based on complex formation with an organic moieties and successively their thermal decomposition . Among the mentioned methods, the latest one is well known as scalable with high yield.…”

“…So far, nanoscale NiO particles have been prepared to have a variety of sizes and shapes, including nanospheres (NPs),,,,,,, nanoplates, nanosheets,,, nanoplatelets, flaked like architectures, nanorings, nanoflowers,, nanorods, and nanocubes . Numerous studies have examined the preparation of nanoscale NiO, and the development of novel synthetic methods that are simpler and provide smaller or more monodisperse product profiles remains a topic of interest.…”