Synthesis of Mn<sub>3</sub>O<sub>4</sub> Nanoparticles for Catalytic Application via Ultrasound‐Assisted Ball Milling

Chen, Ding; Yang, Bing; Jiang, Yong; Zhang, Ying-zhe

doi:10.1002/slct.201702878

Cited by 10 publications

(6 citation statements)

References 31 publications

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“…Contact between the active material and the electrolyte in a large area leads to a faster reaction rate and corresponding specific capacitance. The agglomerated Mn 3 O 4 nanoparticles reduce the exposure area between the electrode material and electrolyte through limiting the number of active sites; hence, it may affect the specific capacitance value 16,17,28,47,49 …”

Section: Resultsmentioning

confidence: 99%

“…The agglomerated Mn 3 O 4 nanoparticles reduce the exposure area between the electrode material and electrolyte through limiting the number of active sites; hence, it may affect the specific capacitance value. 16,17,28,47,49 The EDX analysis of Mn 3 O 4 nanoparticles ( Figure 5B) signifies that the synthesized sample consists of 30.25 at. % manganese and 69.75 at.% oxygen.…”

Section: Morphological Analysismentioning

confidence: 98%

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Electrochemical prospects and potential of hausmannite Mn ₃ O ₄ nanoparticles synthesized through microplasma discharge for supercapacitor applications

et al. 2020

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The special characteristics of microplasma such as microscale geometry, atmospheric operation, self-organization property, and high radical density are suitable for the synthesis of nanoparticles. Trimanganese tetroxide (Mn 3 O 4) nanoparticles (NPs) were synthesized through plasma reduction mechanism by the use of sustainable, rapid, and microplasma array method at atmospheric conditions in a single step. 96.10% reaction yield of hausmannite Mn 3 O 4 NPs were gained by the reduction of potassium permanganate (KMnO 4) precursor solution in the presence of radicals in the microplasma discharge with a processing time of 30 minutes. The structure, oxidation state, morphology, composition, and specific surface area of synthesized particles were determined by XRD, FTIR, XPS, FE-SEM with EDX, HR-TEM, and BET characterization techniques. Spherical polydisperse particles with high surface area (304.01 m 2 g −1) and narrow distribution were obtained. The performance of synthesized Mn 3 O 4 NPs as an electrode material for supercapacitor application was analyzed by electrochemical workstation, which exhibited a high specific capacitance of 144.5 Fg −1 at a current density of 0.5 Ag −1 and the electrode material retained 43.54% of its initial capacitance after 1500 cycles. The asymmetric performance of Mn 3 O 4 NPs as one of the electrode materials exhibited high cyclic stability with 100% retention capacitance with an energy density of 3.33 Wh kg −1 at 0.1 Ag −1 and high power density of 422.5 W kg −1 at 0.5 Ag −1 , respectively. The present study gives new perspectives on a simple, efficient, eco-friendly, and powerful microplasma array method for the coalescence of Mn 3 O 4 NPs and the analysis of electrochemical behavior of corresponding NPs. K E Y W O R D S electrochemical performances, microplasma discharge, Mn 3 O 4 nanoparticles, supercapacitor 1 | INTRODUCTION The rapid growth of technology in all the aspects of our human and societal life has brought about many changes [Correction added on 10 February 2021, after first online publication: reference citations and Figure 13 have been corrected.]

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Section: Resultsmentioning

confidence: 99%

Section: Morphological Analysismentioning

confidence: 98%

Electrochemical prospects and potential of hausmannite Mn ₃ O ₄ nanoparticles synthesized through microplasma discharge for supercapacitor applications

et al. 2020

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“…Mn3O4 is an important material, which finds applications in numerous fields (Chen et al, 2018;Han et al, 2020;Stoševski et al, 2021). This material exhibits a tetragonal spinel structure (Chang et al, 2004, Hirai et al, 2015.…”

Section: Mn3o4mentioning

confidence: 99%

X-ray Absorption Spectroscopy for Estimation of Oxidation State, Chemical Fraction and Local Atomic Structure of Materials

Singh

Nandy

Chae

et al. 2022

Prabha Materials Science Letters

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This work discussed the role of X-ray absorption spectroscopy (XAS) in determining the oxidation state, chemical fraction, and local atomic structure of the materials. These aspects of XAS were discussed by taking LiNiO2 and Mn3O4 as prototype materials. The oxidation state of metal ions in these oxides was estimated with the help of XAS spectra of the reference oxides such as NiO (in the case of LiNiO2), MnO, Mn2O3, and MnO2 (in the case of Mn3O4). Analysis of the oxidation state was performed from the main absorption edge which was estimated from half of the step height. This showed that the Ni K-edge absorption edge of LiNiO2 is slightly above that of NiO. In the case of Mn ions, the main absorption edges show a linear variation with the oxidation states. This estimates the presence of a mixed oxidation state (2.6+) of Mn ions in Mn3O4. Linear combination fitting results exhibit that almost 35% of ions are in a 2+ oxidation state. The remaining ions are in a 3+ oxidation state. Thus, XAS can determine the fractions of each oxidation state of a particular ion in a given material. Quantitative information on coordination number and bond distance of nearest neighbor for a given element of a material is another important use of this technique.

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“…7,8 Different synthesis methods and chemical compositions may affect the catalyst morphology and structure, which may change the catalytic activity. 9 Mn 3 O 4 nanoparticles have been synthesized by various methods, including polyetherimide-templated (spherical, 8.7-31.5 nm), 10 chemical precipitation (spherical, ~20 to 50 nm), 11 ultrasound-assisted ball milling (small size, ~30 nm), 12 hydrothermal (nanorods, 5-30 nm), 13 solvothermal (irregular, 12-40 nm), 14 sol-gel (spherical, 1 μm), 15 combustion (spherical, ~43 nm), 16 low temperature (spherical, 35 nm), 17 and microwave combustion (spongy aggregates, 28.08 nm) synthesis methods. 18 Among these, microwave-assisted synthesis methods have certain advantages, including simple procedure, rapid and selective heating, energy-saving, higher yields, high purity, small and narrow particle size distribution, lower processing cost, and eco-friendliness.…”

Section: Introductionmentioning

confidence: 99%

Temperature‐dependent synthesis of Mn ₃ O ₄ nanostructures by microwave irradiation method for high‐performance supercapacitors

Sreekanth

Yoo

Kim

2021

Intl J of Energy Research

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Summary Nanostructured Mn3O4 electrodes were synthesized via a simple and rapid one‐step microwave irradiation route, using manganese (II) nitrate hexahydrate and hydrazine hydrate. Four different morphologies (plate‐like, hexagonal‐like, rice‐like, and sphere‐like) were obtained by changing the reaction temperature such as 125°C, 150°C, 175°C, and 200°C (denoted as Mn‐125, Mn‐150, Mn‐175, and Mn‐200). Various analytical techniques such as X‐ray diffraction, Brunauer‐Emmett‐Teller, Raman, X‐ray photoelectron spectroscopy, scanning electron microscope, and high‐resolution transmission electron microscopy analysis were utilized to characterize the physicochemical properties of the prepared electrodes. The average crystallite sizes of the Mn‐125, Mn‐150, Mn‐175, and Mn‐200 samples were ~32.3, ~28.8, ~31.7, and ~28.9 nm, respectively. To evaluate the electrochemical properties of the Mn3O4 nanostructures for supercapacitors, cyclic voltammetry and galvanostatic charge/discharge measurements were performed. Remarkably, the hexagonal‐like Mn3O4 electrode showed a higher specific capacitance of 449.98 F g−1 at a lower current density of 1 A g−1 and showing outstanding cyclic permanence (95% capacitance retention 5000 cycles) than the other nanostructures.

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Synthesis of Mn₃O₄ Nanoparticles for Catalytic Application via Ultrasound‐Assisted Ball Milling

Cited by 10 publications

References 31 publications

Electrochemical prospects and potential of hausmannite Mn ₃ O ₄ nanoparticles synthesized through microplasma discharge for supercapacitor applications

Electrochemical prospects and potential of hausmannite Mn ₃ O ₄ nanoparticles synthesized through microplasma discharge for supercapacitor applications

X-ray Absorption Spectroscopy for Estimation of Oxidation State, Chemical Fraction and Local Atomic Structure of Materials

Temperature‐dependent synthesis of Mn ₃ O ₄ nanostructures by microwave irradiation method for high‐performance supercapacitors

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Synthesis of Mn3O4 Nanoparticles for Catalytic Application via Ultrasound‐Assisted Ball Milling

Cited by 10 publications

References 31 publications

Electrochemical prospects and potential of hausmannite Mn 3 O 4 nanoparticles synthesized through microplasma discharge for supercapacitor applications

Electrochemical prospects and potential of hausmannite Mn 3 O 4 nanoparticles synthesized through microplasma discharge for supercapacitor applications

X-ray Absorption Spectroscopy for Estimation of Oxidation State, Chemical Fraction and Local Atomic Structure of Materials

Temperature‐dependent synthesis of Mn 3 O 4 nanostructures by microwave irradiation method for high‐performance supercapacitors

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Synthesis of Mn₃O₄ Nanoparticles for Catalytic Application via Ultrasound‐Assisted Ball Milling

Electrochemical prospects and potential of hausmannite Mn ₃ O ₄ nanoparticles synthesized through microplasma discharge for supercapacitor applications

Electrochemical prospects and potential of hausmannite Mn ₃ O ₄ nanoparticles synthesized through microplasma discharge for supercapacitor applications

Temperature‐dependent synthesis of Mn ₃ O ₄ nanostructures by microwave irradiation method for high‐performance supercapacitors