Green synthesis of nanosized manganese dioxide as positive electrode for lithium-ion batteries using lemon juice and citrus peel

Hashem, Ahmed M.; Abuzeid, Hanaa M.; Kaus, Maximilian; Indris, Sylvio; Ehrenberg, Helmut; Mauger, A.; Julien, C.

doi:10.1016/j.electacta.2018.01.024

Cited by 43 publications

(12 citation statements)

References 54 publications

(46 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, the relative quality of ESM-templated MnO 2 NPs remained at 2.61% after ESM was burnt out. It was reported that MnO 2 was thermally decomposed at 500 °C and conversed into Mn 2 O 3 [ 51 ]. Moreover, further thermal decomposition of Mn 2 O 3 to Mn 3 O 4 occurred above 1000 °C [ 52 ].…”

Section: Resultsmentioning

confidence: 99%

Eggshell Membrane-Templated MnO2 Nanoparticles: Facile Synthesis and Tetracycline Hydrochloride Decontamination

Wang

Tang

et al. 2018

Nanoscale Res Lett

View full text Add to dashboard Cite

Taking advantages of reticular proteins and reductive groups on the surface, eggshell membrane (ESM) was selected to synthesize MnO2 nanoparticles from potassium permanganate through a super simple way in which ESM acted as both template and reductant. This process avoided harsh reaction conditions or complicated aftertreatments and thus owned the merits of green synthesis, handy operation, low cost, and easy purification. The ESM-templated MnO2 nanoparticles (MnO2 NPs/ESM) were characterized, and the content of nanomaterials on the template was tested. MnO2 NPs/ESM showed a good capacity for decontamination of tetracycline hydrochloride (TCH). The macroscopical materials can be separated easily by taking the membrane out to stop the degradation instead of centrifugation or filtration. It was studied that 72.27% of TCH (50 mg/L) was decontaminated in 20 min by 0.1920 g/L MnO2 nanoparticles, and removal efficiency could reach 83.10% after 60 min under buffered condition. The kinetics was studied with or without buffer, and it was concluded that the degradation process followed a pseudo-second-order model. The facile synthesis of materials and effective degradation would facilitate the nano-MnO2-based decontamination applications.Electronic supplementary materialThe online version of this article (10.1186/s11671-018-2679-y) contains supplementary material, which is available to authorized users.

show abstract

Section: Resultsmentioning

confidence: 99%

Eggshell Membrane-Templated MnO2 Nanoparticles: Facile Synthesis and Tetracycline Hydrochloride Decontamination

Wang

Tang

et al. 2018

Nanoscale Res Lett

View full text Add to dashboard Cite

show abstract

“…[1][2][3] Based on how these structural units are interconnected to form tunnels with specific sizes, the MnO 2 family has been categorized into several well-known phases such as l-MnO 2 , g-MnO 2 , b-MnO 2 (pyrolusite), a-MnO 2 (hollandite or cryptomelane), and t-MnO 2 (todorokite) 4,5 . Figures 1A-1C depict the theoretical structure of three representative phases, and it also illustrates how each tunnel phase is conventionally named as M 3 N, where M and N stand for the numbers of the [MnO 6 ] octahedra constructing the tunnel height and width, respectively. Also illustrated inside the brackets are the angstrom-scale size of each M 3 N, making MnO 2 polymorphs ideal for application in ion transport and storage, such as rechargeable ion batteries.…”

mentioning

confidence: 99%

“…Also illustrated inside the brackets are the angstrom-scale size of each M 3 N, making MnO 2 polymorphs ideal for application in ion transport and storage, such as rechargeable ion batteries. [6][7][8] For larger tunnels such as the 2 3 2 tunnels and 3 3 3 tunnels, the large opening typically requires the presence of hydrated cations (pink spheres) within the tunnel to prevent structural collapse. 9,10 The highly polymorphic nature of tunnel MnO 2 has attracted substantial effort aiming to develop a specific tunnel phase with uniform tunnel size for energy storage applications, and to further establish the tunnel structure-property relationship.…”

mentioning

confidence: 99%

Ordering Heterogeneity of [MnO6] Octahedra in Tunnel-Structured MnO2 and Its Influence on Ion Storage

Yuan

Liu

Byles

et al. 2019

Joule

128

View full text Add to dashboard Cite

Correctly establishing a structure-property relationship is necessary to rationally develop energy materials for performance optimization. Bulk characterizations fall short of deciphering localized structural features at nanoscale and atomic scale. This work atomically resolves structural heterogeneity existing in single MnO 2 nanoparticles and demonstrates its significant effect on energy storage property, which was neglected by traditional bulk characterizations. Attention should thus be paid to controllable synthesis toward structural homogeneity with predictable/ tunable energy storage property and the proper choice of structural characterization tools. SUMMARY[MnO 6 ] octahedra are the structural units for a large family of manganese dioxides (MnO 2 ) possessing one-dimensional tunnel structures with extensive applications in catalysis and energy storage. Despite the long-range [MnO 6 ] ordering confirmed by conventional diffraction tools, surprisingly, the functional properties of a specific MnO 2 tunnel phase still vary significantly in literature with unclear structural origins. Here, we demonstrate the existence of tunnel heterogeneity featuring localized tunnel intergrowths within single MnO 2 nanoparticles via atomically resolved imaging. The degree of tunnel heterogeneity increases with the size increase of tunnels from b-MnO 2 (1 3 1 tunnel) to a-MnO 2 (2 3 2 tunnel), and to todorokite MnO 2 (3 3 3 tunnel). Furthermore, the tunnel heterogeneity within one MnO 2 nanoparticle significantly affects the energy storage kinetics even down to sub-nanometer scale. These findings are expected to call for renewed attention to the controlled synthesis of homogeneous tunnel-specific phases with predictable properties and to yield a more precise structure-property relationship in polymorphic materials.

show abstract

“…The higher the number of hydroxyl groups, the higher the antioxidant activity [30]. Previously, we reported successful preparations of nanostructured MnO 2 via biological reducing agents such as extract of green and black tea [27], citrus peel [31], and extract of orange peel [25]. Broccoli is a kind of vegetable similar to cauliflower and cabbage, all of them are rich in natural antioxidants, antimicrobial and anticancer activities [32].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of High Surface Area α-KyMnO2 Nanoneedles Using Extract of Broccoli as Bioactive Reducing Agent and Application in Lithium Battery

Hashem

Abuzeid

Winter³

et al. 2020

Materials

View full text Add to dashboard Cite

With the aim to reduce the entire cost of lithium-ion batteries and to diminish the environmental impact, the extract of broccoli is used as a strong benign reducing agent for potassium permanganate to synthesize α-KyMnO2 cathode material with pure nanostructured phase. Material purity is confirmed by X-ray powder diffraction and thermogravimetric analyses. Images of transmission electron microscopy show samples with a spider-net shape consisting of very fine interconnected nanoneedles. The nanostructure is characterized by crystallite of 4.4 nm in diameter and large surface area of 160.7 m2 g−1. The material delivers an initial capacity of 211 mAh g−1 with high Coulombic efficiency of 99% and 82% capacity retention after 100 cycles. Thus, α-KyMnO2 synthesized via a green process exhibits very promising electrochemical performance in terms of initial capacity, cycling stability and rate capability.

show abstract

Green synthesis of nanosized manganese dioxide as positive electrode for lithium-ion batteries using lemon juice and citrus peel

Cited by 43 publications

References 54 publications

Eggshell Membrane-Templated MnO2 Nanoparticles: Facile Synthesis and Tetracycline Hydrochloride Decontamination

Eggshell Membrane-Templated MnO2 Nanoparticles: Facile Synthesis and Tetracycline Hydrochloride Decontamination

Ordering Heterogeneity of [MnO6] Octahedra in Tunnel-Structured MnO2 and Its Influence on Ion Storage

Synthesis of High Surface Area α-KyMnO2 Nanoneedles Using Extract of Broccoli as Bioactive Reducing Agent and Application in Lithium Battery

Contact Info

Product

Resources

About