Synthesis and characterization of nano Mn3O4 and LiMn2O4 spinel from manganese ore and pure materials

Zawrah, M.F.; Fadaly, Ezzat A. El; Khattab, R.M.; Aly, M. H.; Shafei, Heba El

doi:10.1016/j.ceramint.2020.04.049

Cited by 14 publications

(3 citation statements)

References 38 publications

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“…It was observed that the XRD pattern of Mn 3 O 4 consists of several diffraction peaks at 13.82°, 29.13°, 31.32°, 32.60°, 36.33°, 44.69°, 51.01°, 58.76°, 60.13°, and 64.88°, which were corresponding to the lattice planes of (101), (112), (103), (211), (004), ( 220), (105), (321), ( 224) and (400), respectively. Tetragonal-phase Mn 3 O 4 nanoparticles matched well with the reported JCPDS number 80-0382 [35][36][37][38]. The average crystallite size (D) was calculated to be 20.92 nm using the Scherrer equation, described in equation (2):…”

Section: Structural Analysis Of Gomn 3 O 4 Nanocompositesupporting

confidence: 77%

Graphene oxide-Mn₃O₄ nanocomposites for advanced electrochemical biosensor for fumonisin B1 detection

et al. 2023

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Occurrence of mycotoxins in food samples threat to its safety issue due to the presence of high toxicity and carcinogenic behavior, thus requiring highly sensitive and selective detection. Herein, the trimanganese tetraoxide (Mn3O4) nanoparticles in combination with graphene oxide (GO) nanocomposite were used to enhance the electrochemical performance for fabrication of electrochemical biosensor for fumonisin B1 (FB1) detection. The various characterization tools were used to validate the fabrication of GOMn3O4 nanocomposites. To fabricate the electrochemical biosensor on an indium tin oxide (ITO) coated glass substrate, a thin film of GOMn3O4 nanocomposite was prepared using electrophoretic deposition (EPD) technique, and antibodies (ab-FB1) were immobilized onto the electrode for selective FB1 detection. The differential pulse voltammetry (DPV) technique was used to observe the sensing performance. The non-binding sites of the ab-FB1 on the immunoelectrode were blocked with bovine serum albumin (BSA). The biosensor electrode was fabricated as BSA/ab-FB1/GOMn3O4/ITO for the detection of FB1. The sensitivity of the biosensor was obtained as 10.08 µA mL ng-1 cm-2 in the detection range of 1 pg mL-1 to 800 ng mL-1 with a limit of detection (LOD) of 0.195 pg mL-1. In addition, the recovery of BSA/ab-FB1/GOMn3O4/ITO immunoelectrodes was also performed on sweet corn samples and is calculated to be 98.91%.

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Section: Structural Analysis Of Gomn 3 O 4 Nanocompositesupporting

confidence: 77%

Graphene oxide-Mn₃O₄ nanocomposites for advanced electrochemical biosensor for fumonisin B1 detection

et al. 2023

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“…The magnetic property of Mn 3 O 4 -MnO 2 nanocomposite is a function of the external magnetic field. Manganese oxides are known to be extremely useful in industries due to their environmental compatibility and low-cost production [50]. They also find use in pharmaceutical, and medicinal fields [49].…”

Section: Discussionmentioning

confidence: 99%

Characterization of Mn₃O₄‐MnO₂ nanocomposites biosynthesized by cell lysate of Haloferax alexandrinus GUSF‐1

Alvares

Gaonkar

Naik³

et al. 2023

J Basic Microbiol

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Manganese oxide nanocomposites attract huge attention in various biotechnological fields due to their extensive catalytic properties. This study reports an easy, rapid, and cost‐effective method of using the cell lysate of haloarchaeon, Haloferax alexandrinus GUSF‐1 for the synthesis of manganese oxide nanoparticles. The reaction between the cell lysate and manganese sulfate resulted in the formation of a dark brown precipitate within 48 h at room temperature. The X‐ray diffraction pattern showed the existence of Mn3O4 and MnO2 phases consistent with the JCPDS card no. (01‐075‐1560 and 00‐050‐0866). The dark brown colloidal suspension of MnO3‐MnO2 in methanol showed maximum absorption between 220 and 260 nm. The EDX spectrum confirmed the presence of manganese and oxygen. The Transmission electron microscopy revealed the spherical morphology with an average particle size between 30 and 60 nm. The magnetic moment versus magnetic field (MH) curve, at room temperature (300 K) did not saturate even at a high magnetic field (±3T) indicating the paramagnetic nature of the prepared nanocomposite. The Atomic Emission Spectroscopic analysis showed a negligible amount of soluble manganese (0.03 ppm in 50 ppm) in the Mn3O4‐MnO2 suspension suggesting the maximum stability of the material in the solvent over time. Interstingly, Mn3O4‐MnO2 nanocomposites evidenced antimicrobial activity in the order of Pseudomonas aeruginosa > Salmonella typhi > Escherichia coli > Proteus vulgaris > Candida albicans > Staphylococcus aureus. Conclusively, this is the first report on the formation of Mn3O4‐MnO2 nanocomposites using cell lysate of salt pan haloarcheon Haloferax alexandrinus GUSF‐1 with antimicrobial potential.

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“…As one of the main materials for lithium-ion positive electrodes, LiMn 2 O 4 has been mainly prepared through the high-temperature calcination of electrolytic MnO 2 in industry [1][2][3][4]. More and more studies have shown that LiMn 2 O 4 prepared using Mn 3 O 4 has better electrochemical performance compared to electrolytic MnO 2 [5]. Due to the high electrolysis cost, uneven particle size, and poor dispersion of MnO 2 , the LiMn 2 O 4 crystal size is uneven, resulting in low specific capacity and poor cycling performance.…”

Section: Introductionmentioning

confidence: 99%

Study and Property Characterization of LiMn2O4 Synthesized from Octahedral Mn3O4

Wang,

Wang

et al. 2023

Sustainability

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The structure of Mn3O4 with an octahedron structure was similar to that of LiMn2O4, and the lithium manganate prepared with it had good electrochemical performance. During the preparation of octahedron Mn3O4, the effects of the pH regulator, temperature, and reaction pH on its morphology, specific surface area, and other properties were studied in this paper. LiMn2O4 was prepared from Octahedron Mn3O4 obtained by using better technology. The effects of calcination time and temperature on the physicochemical and electrochemical properties of LiMn2O4 were studied. The research results indicated that the optimal synthesis conditions for Mn3O4 were as follows: ammonia water was used as a pH regulator and complexing agent, reaction pH was 8, reaction temperature was 80 °C, reaction time was 12 h, and oxygen flow rate was 3 L∙min−1. The LiMn2O4 synthesized had a good octahedron morphology when the calcination temperature was 800 °C and the calcination time was 10 h. The first discharge-specific capacity was 121.9 mAh∙g−1 at a current density of 0.2 C, the discharge-specific capacity was 114.1 mAh∙g−1 after 100 cycles, and the capacity retention rate was 93.6%. Therefore, the lithium manganate prepared by using octahedron manganous oxide had good electrochemical reversibility and a good application prospect.

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Synthesis and characterization of nano Mn3O4 and LiMn2O4 spinel from manganese ore and pure materials

Cited by 14 publications

References 38 publications

Graphene oxide-Mn₃O₄ nanocomposites for advanced electrochemical biosensor for fumonisin B1 detection

Graphene oxide-Mn₃O₄ nanocomposites for advanced electrochemical biosensor for fumonisin B1 detection

Characterization of Mn₃O₄‐MnO₂ nanocomposites biosynthesized by cell lysate of Haloferax alexandrinus GUSF‐1

Study and Property Characterization of LiMn2O4 Synthesized from Octahedral Mn3O4

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Synthesis and characterization of nano Mn3O4 and LiMn2O4 spinel from manganese ore and pure materials

Cited by 14 publications

References 38 publications

Graphene oxide-Mn3O4 nanocomposites for advanced electrochemical biosensor for fumonisin B1 detection

Graphene oxide-Mn3O4 nanocomposites for advanced electrochemical biosensor for fumonisin B1 detection

Characterization of Mn3O4‐MnO2 nanocomposites biosynthesized by cell lysate of Haloferax alexandrinus GUSF‐1

Study and Property Characterization of LiMn2O4 Synthesized from Octahedral Mn3O4

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Graphene oxide-Mn₃O₄ nanocomposites for advanced electrochemical biosensor for fumonisin B1 detection

Graphene oxide-Mn₃O₄ nanocomposites for advanced electrochemical biosensor for fumonisin B1 detection

Characterization of Mn₃O₄‐MnO₂ nanocomposites biosynthesized by cell lysate of Haloferax alexandrinus GUSF‐1