Improved performance of Mn3O4-based nanocomposites in photocatalytic removal of methylene blue

Osgouei, M. Saket; Kamrani, N.; Fazli-Shokouhi, Sara; Khatamian, M.

doi:10.1016/j.jallcom.2022.163729

Cited by 11 publications

(3 citation statements)

References 76 publications

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“…01-024-0734), respectively. 24 For comparison, the reference JCPDS diffraction patterns of each phase are also presented in Figure 1A. The PXRD result justifies the presence of Mn 3 O 4 , NiSe 2 , and MnSe 2 phases in the material.…”

Section: ■ Introductionmentioning

confidence: 68%

“…In addition, diffraction peaks at 2θ values of 18.1, 28.9, 32.2, 36.1, 58.5, 59.8, and 64.6° can be indexed to the (101), (112), (103), (211), (321), (224), and (400) lattice planes of tetragonal Mn 3 O 4 (JCPDS no. 01-024-0734), respectively . For comparison, the reference JCPDS diffraction patterns of each phase are also presented in Figure A.…”

Section: Resultsmentioning

confidence: 99%

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Hierarchical Mn₃O₄/NiSe₂–MnSe₂: A Versatile Electrode Material for High-Performance All-Solid-State Hybrid Pseudocapacitors with Supreme Working Durability

Srivastav,

Singh,

Meher

2023

Langmuir

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As highly efficient electrochemical energy storage devices are in indispensable demand for numerous modern-day technologies, herein sluggish precipitation followed by an anion exchange procedure has been developed to synthesize an oxide-selenide mixed phase (Mn3O4/NiSe2–MnSe2) novel electrode material with high surface area and porosity for high-performance all-solid-state hybrid pseudocapacitors (ASSHPC). Mn3O4/NiSe2–MnSe2 shows a rich Tyndall effect (in H2O) and possesses randomly arranged low-dimensional crystallites of nearly similar size and uniform shape. The electrochemical analyses of Mn3O4/NiSe2–MnSe2 corroborate good electrochemical reversibility during charge transfer, superior pseudocapacitive charge-storage efficiency, and very low charge transfer and series resistance, ion-diffusion resistance, and relaxation time, which endorse the quick pseudocapacitive response of the material. The Mn3O4/NiSe2–MnSe2||N-rGO ASSHPC device demonstrates excellent charge-storage physiognomies suggestive of rich electrochemical and electromicrostructural compatibility between the electrode materials in the fabricated assembly. The Mn3O4/NiSe2–MnSe2||N-rGO ASSHPC device delivers high mass and area specific capacitance/capacity, very low charge-transfer resistance (∼0.74 Ω), total series resistance (∼0.76 Ω), diffusion resistance, and a relaxation time constant, which endorse the quick pseudocapacitive response of the device. The device delivers higher energy and power density (∼34 W h kg–1 at ∼2994 W kg–1), rate efficiency (∼17 W h kg–1 at ∼11,995 W kg–1), and cyclic performance (∼97.2% specific capacity/capacitance retention after 9500 continuous GCD cycles). The superior Ragone and cyclic efficiencies of the ASSHPC device are ascribed to the multiple redox-active Ni and Mn ions which lead to the supplemented number of redox reactions; “electroactive-ion buffering pool”-like physiognomics of Mn3O4/NiSe2–MnSe2, which facilitate the electrolyte ion dissemination to the electroactive sites even at high rate redox condition; and ideal electro-microstructural compatibility between the electrode materials, which leads to assisted charge transfer and absolute ion dissemination during the charge-storage process.

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Section: ■ Introductionmentioning

confidence: 68%

Section: Resultsmentioning

confidence: 99%

Hierarchical Mn₃O₄/NiSe₂–MnSe₂: A Versatile Electrode Material for High-Performance All-Solid-State Hybrid Pseudocapacitors with Supreme Working Durability

Srivastav,

Singh,

Meher

2023

Langmuir

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“…00-024-0734. 50,51 Mn 3 O 4 has a tetragonal crystal system with space group and number of I41/amd and 141, respectively, and unit cell parameters a (Å) and b (Å) = 5.7621 and c (Å): 9.4696. GO exhibited strong and weak intense diffraction peaks located at near 12°and 20°, ascribed to the (001) and (002) planes, 18 respectively.…”

Section: Structural Characterizationmentioning

confidence: 99%

Construction of Sr@Mn₃O₄/GO nanocomposite: a synergistic electrocatalyst for nitrofurantoin detection in biological and environmental samples

Vinothkumar

Sakthivel

Chen

et al. 2023

Environ. Sci.: Nano

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Biosynthesis of Mn3O4/PVP Nanocomposite for Enhanced Photocatalytic Degradation of Organic Dyes Under Sunlight Irradiation

Salmi,

Souhaila,

Salah Eddine

et al. 2023

J Clust Sci

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Improved performance of Mn3O4-based nanocomposites in photocatalytic removal of methylene blue

Cited by 11 publications

References 76 publications

Hierarchical Mn₃O₄/NiSe₂–MnSe₂: A Versatile Electrode Material for High-Performance All-Solid-State Hybrid Pseudocapacitors with Supreme Working Durability

Hierarchical Mn₃O₄/NiSe₂–MnSe₂: A Versatile Electrode Material for High-Performance All-Solid-State Hybrid Pseudocapacitors with Supreme Working Durability

Construction of Sr@Mn₃O₄/GO nanocomposite: a synergistic electrocatalyst for nitrofurantoin detection in biological and environmental samples

Biosynthesis of Mn3O4/PVP Nanocomposite for Enhanced Photocatalytic Degradation of Organic Dyes Under Sunlight Irradiation

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Improved performance of Mn3O4-based nanocomposites in photocatalytic removal of methylene blue

Cited by 11 publications

References 76 publications

Hierarchical Mn3O4/NiSe2–MnSe2: A Versatile Electrode Material for High-Performance All-Solid-State Hybrid Pseudocapacitors with Supreme Working Durability

Hierarchical Mn3O4/NiSe2–MnSe2: A Versatile Electrode Material for High-Performance All-Solid-State Hybrid Pseudocapacitors with Supreme Working Durability

Construction of Sr@Mn3O4/GO nanocomposite: a synergistic electrocatalyst for nitrofurantoin detection in biological and environmental samples

Biosynthesis of Mn3O4/PVP Nanocomposite for Enhanced Photocatalytic Degradation of Organic Dyes Under Sunlight Irradiation

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Hierarchical Mn₃O₄/NiSe₂–MnSe₂: A Versatile Electrode Material for High-Performance All-Solid-State Hybrid Pseudocapacitors with Supreme Working Durability

Hierarchical Mn₃O₄/NiSe₂–MnSe₂: A Versatile Electrode Material for High-Performance All-Solid-State Hybrid Pseudocapacitors with Supreme Working Durability

Construction of Sr@Mn₃O₄/GO nanocomposite: a synergistic electrocatalyst for nitrofurantoin detection in biological and environmental samples