Study on structural and magnetic properties of nanosized M-type Ba-hexaferrites synthesized by urea assisted citrate precursor route

Mudsainiyan, Rahul Kumar; Jassal, Amanpreet Kaur; Gupta, M. P.; Chawla, S.K.

doi:10.1016/j.jallcom.2015.04.218

Cited by 19 publications

(3 citation statements)

References 45 publications

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“…As a result, the FeNi-CTAB micelles were successfully synthesized. The calcination of FeNi-CTAB at a temperature of 200 °C also caused the metal chlorides and sulfates to change into ammonium CTAB salt, which accelerated the creation of a metal nanostructure with a lathery surface …”

Section: Resultsmentioning

confidence: 99%

“…The calcination of FeNi-CTAB at a temperature of 200 °C also caused the metal chlorides and sulfates to change into ammonium CTAB salt, which accelerated the creation of a metal nanostructure with a lathery surface. 63 Electrochemical Urea Oxidation. The electro-oxidation of urea on the FeNi alloy as the anode material was studied using cyclic voltammetry (CV), linear sweep voltammetry (LSV), and electrochemical impedance spectroscopic (EIS) techniques.…”

Section: ■ Introductionmentioning

confidence: 99%

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CTAB-Assisted Synthesis of FeNi Alloy Nanoparticles: Effective and Stable Electrocatalysts for Urea Oxidation Reactions

Dhawale,

Munde,

Mulik

et al. 2024

Langmuir

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Development of highly efficient electrocatalysts for treating urearich wastewater is an important problem in environmental management and energy production. In this work, an iron−nickel alloy (Fe−Ni alloy) was synthesized via soft-template cetyltrimethylammonium bromide (CTAB)-assisted precipitation using low-temperature calcination. The as-synthesized nanoalloy was characterized by X-ray diffraction (XRD), which revealed the formation of a facecentered cubic (FCC) structure of the Fe−Ni alloy; field emission-scanning electron microscopic (FE-SEM) analysis revealed the spherical shape of the Fe− Ni alloy; high-resolution transmission electron microscopy (HR-TEM) revealed the average size to be ∼33.09 nm; and X-ray photoelectron spectroscopy (XPS) showed the presence of Fe, Ni, C, and O components and their chemical composition and valence states in the Fe−Ni alloy. The electrochemical urea oxidation reaction (UOR) was investigated by conducting linear sweep voltammetry (LSV) tests on the synthesized electrocatalysts with different Ni/Fe ratios in alkaline electrolytes with urea. The potential required to reach a current density of 10 mA cm −2 is 1.27 V vs RHE, which demonstrates the higher electrochemical activity of the Fe−Ni alloy compared to other individual compounds. This could be due to CTAB which improved the structural stability and synergetic and electronic effects in the nanoscale. This study will further contribute to renewable energy generation technology with long-term energy sustainability and also opens up great potential for reducing water pollution.

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Section: Resultsmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

CTAB-Assisted Synthesis of FeNi Alloy Nanoparticles: Effective and Stable Electrocatalysts for Urea Oxidation Reactions

Dhawale,

Munde,

Mulik

et al. 2024

Langmuir

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“…As a result, the CuCo–Citrate complex was formed. Further, during high-temperature calcination of CuCo–Citrate, the nitrates of metals were reduced into ammonium citrate and combusted into gaseous products with instantaneous growth of a metal oxide nanostructure with a lathery surface …”

Section: Resultsmentioning

confidence: 99%

Facile Synthesis of Spinel-Type Copper Cobaltite Nanoplates for Enhanced Electrocatalytic Detection of Acetylcholine

Balasubramanian

Balamurugan

Chen

et al. 2019

ACS Sustainable Chem. Eng.

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Herein, we report the preparation of novel spinel-type CuCo2O4 nanoplates (CCO NPs) through a cost-effective, soft-template (citrate)-assisted method, followed by low-temperature calcination. In the synthesis process, the metal cations such as Cu2+ and Co2+ can react with citrate molecules via coordination interaction to form the CuCo-citrate at elevated temperature. During the calcination process at 500 °C, the citrate molecules were eliminated from the CuCo-citrate precursor via simple organic species, and thus, spinel-type CuCo2O4 nanoplates were formed successfully. Surface morphology, crystalline nature, and phase purity of as-synthesized CCO NPs were assessed by transmission electron microscopy (TEM), X-ray diffraction (XRD), and X-ray photoelectron microscopy (XPS). As-synthesized CuCo2O4 nanoplates were used to construct a sensitive and reliable enzyme-free electrochemical sensor of acetylcholine (ACh) that shows a meaningful limit of detection (30 nM) with broad dynamic range (0.2–3500 μM) covering the clinical range of ACh. Furthermore, the developed ACh sensor delivered long-term durability and good reproducibility. The point-of-care utility of the ACh sensor was demonstrated in spiked blood serum samples with acceptable recovery rates. The present work demonstrates a facile synthesis method with an extensive potential toward the preparation of binary transition metal oxides (BTMOs) for divergent electrocatalytic applications.

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Advances in the Processing of Ferrite Nanoparticles

Thakur

Sharda

2023

Materials Horizons: From Nature to Nanomaterials

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Study on structural and magnetic properties of nanosized M-type Ba-hexaferrites synthesized by urea assisted citrate precursor route

Cited by 19 publications

References 45 publications

CTAB-Assisted Synthesis of FeNi Alloy Nanoparticles: Effective and Stable Electrocatalysts for Urea Oxidation Reactions

CTAB-Assisted Synthesis of FeNi Alloy Nanoparticles: Effective and Stable Electrocatalysts for Urea Oxidation Reactions

Facile Synthesis of Spinel-Type Copper Cobaltite Nanoplates for Enhanced Electrocatalytic Detection of Acetylcholine

Advances in the Processing of Ferrite Nanoparticles

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