Enhanced electrochemical properties of Mn3O4/graphene nanocomposite as efficient anode material for lithium ion batteries

Varghese, Shibu P.; Babu, B. Rajesh; Prasannachandran, Ranjith; Antony, Rosy; Shaijumon, Manikoth M.

doi:10.1016/j.jallcom.2018.11.394

Cited by 61 publications

(41 citation statements)

References 60 publications

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“…Such a good cycling performance under high current density further reflects the excellent stability of the V 3 O 5 microcrystals. Furthermore, the above demonstrated rate capability is significantly better than that of many LIB anodes reported previously such as SnSb/C composite (151 mAh g −1 at 5 A g −1 ), Nb 2 O 5 /carbon nanocomposite (134 mAh g −1 at 5 A g −1 ), Mn 3 O 4 /graphene nanocomposite (180 mAh g −1 at 2.5 A g −1 ), and peapod‐like V 2 O 3 nanowires (183 mAh g −1 at 1.0 A g −1 ), implying that V 3 O 5 is a very promising anode to construct superior LIBs with both high power and high energy densities.…”

Section: Introductionmentioning

confidence: 73%

Oxyvanite V₃O₅: A new intercalation‐type anode for lithium‐ion battery

Chen

Tan

Rui

et al. 2019

InfoMat

126

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In the present study, V3O5 microcrystals that synthesized via vacuum calcination are employed as anodes for lithium‐ion batteries (LIBs) for the first time. Despite the widely observed sluggish reaction kinetics and poor cycling stability in most micro‐sized transition metal oxides, the V3O5 microcrystals exhibit excellent rate capability (specific capacities of 144 and 125 mAh g−1 are achieved at extremely high current densities of 20 and 50 A g−1, respectively) and long‐term cycling performance (specific capacity of 117 mAh g−1 is sustained over 2000 cycles at 50 A g−1). It is ascribed to the three‐dimensional open‐framework structure of the V3O5 microcrystals as a major factor in dictating the fast reaction kinetics (lithium diffusion coefficient: ~10−9 cm2 s−1). In addition, significant insight into the reaction mechanism of the V3O5 microcrystals in concomitant its phase evolution are obtained from ex‐situ XRD study, revealing that the V3O5 microcrystals undergo intercalation reaction with insignificant structural change in response to lithiation/delithiation.

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Section: Introductionmentioning

confidence: 73%

Oxyvanite V₃O₅: A new intercalation‐type anode for lithium‐ion battery

Chen

Tan

Rui

et al. 2019

InfoMat

126

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“…As shown in Figure 4A, the diffraction peaks at 18.2°, 28.8°, 32.5°, 36 Figure 4B, the weak peaks at 316 and 368 cm −1 and the strong peak at 651 cm −1 are corresponded to Mn 3 O 4. [25][26][27][28] The Raman band at 651 cm −1 is a typical A 1g model, which is derived from the vibration of tetrahedral Mn-O bond and the stretching of MnO 6 octahedron, indicating the synthesis of Mn 3 O 4 nanoparticles. 6,29,30 The peaks located at 1337 and 1570 cm −1 are corresponded to the D and G peaks of carbon, indicating the existence of NC.…”

Section: Resultsmentioning

confidence: 99%

Mn₃ O₄ nanoparticles on activated carbonitride by soft chemical method for symmetric coin cell supercapacitors

et al. 2019

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Summary Trimanganese tetraoxide (Mn3O4) is limited in supercapacitor application due to its poor electrical conductivity and cycle stability. An effective strategy for improving its electrochemical performance is to be combined with good conductive materials, such as carbon materials. A facile method was developed to prepare a Mn3O4/activated carbonitride composite (MONC) as electrode material for supercapacitor. Mn3O4 particles with small size were homogeneously grown on the surface of activated carbonitride (NC). Notably, the addition of NC not only improves the electrical conductivity of Mn3O4 but also serves as a supporting matrix to maintain the stability of the composite. Electrochemical characterization results show that the specific capacitance of the composite can reach 180 F/g at a current density of 0.5 A/g, which is two times higher than that of Mn3O4 at the same current density. After 2000 cycles, the specific capacitance of MONC can be maintained at 80.2% of the initial specific capacitance. The symmetric coin cell (SCC) assembled by MONC as positive and negative electrodes shows large voltage window, excellent cycle stability, and superior energy/power densities. This work will be one of important references for the application of other transition metal oxides in energy storage devices.

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“…The contents of C in CMnHNs, SnCoCNCs, and SnCoCMnYNCs were analyzed by TG (Figure f). In TG curves, the mass loss of SnCoCNCs and SnCoCMnYNCs at below 180 °C was caused by the volatilization of a small amount of bound water . When the temperature continued to rise to 180–300 °C, the mass of SnCoCNCs and SnCoCMnYNCs slightly increased due to the preliminary oxidation of SnCo nanoparticles under air conditions.…”

Section: Resultsmentioning

confidence: 99%

“…In TG curves, the mass loss of SnCoCNCs and SnCoCMnYNCs at below 180 °C was caused by the volatilization of a small amount of bound water. 53 When the temperature continued to rise to 180−300 °C, the mass of SnCoCNCs and SnCoCMnYNCs slightly increased due to the preliminary oxidation of SnCo nanoparticles under air conditions. The mass loss of CMnHNs at below 300 °C could be attributed to desorption of volatile substances.…”

Section: Resultsmentioning

confidence: 99%

SnCo@C@Mn₃O₄ Yolk–Shell Hierarchical Hybrid Nanocubes with Exceptional Lithium Storage Performance

et al. 2021

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SnCo@C@Mn3O4 yolk–shell hierarchical hybrid nanocubes are successfully fabricated via the thermal reduction of CoSn(OH)6@polydopamine and the subsequent surface-coating of Mn3O4 nanoparticles on the carbon layer. In the novel yolk–shelled nanostructures, the multiple SnCo alloy nanocores decrease the size of alloy nanoparticles and provide sufficient sites for the lithiation of Sn. Simultaneously, N-doped carbon as the intermediate layer prevents the agglomeration between SnCo and Mn3O4 nanoparticles and thus improves their structural stability. More importantly, Mn3O4 nanoparticles reinforce the carbon shell of yolk–shell nanostructures while decreasing the carbon content, resulting in high capacity and outstanding cyclic stability of SnCo@C@Mn3O4 nanocubes. With the respective advantages of three nanocomponents and their synthetic effects, SnCo@C@Mn3O4 yolk–shell hierarchical hybrid nanocubes show impressive reversible capacity (999 mAh g–1 at 0.1A g–1 after 300 cycles) and outstanding high-rate cyclic stability (734 mAh g–1 at 0.5A g–1 after 650 cycles). This study provides new insight into the rational design of novel Sn-based nanocomposites for enhanced electrochemical properties.

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Enhanced electrochemical properties of Mn3O4/graphene nanocomposite as efficient anode material for lithium ion batteries

Cited by 61 publications

References 60 publications

Oxyvanite V₃O₅: A new intercalation‐type anode for lithium‐ion battery

Oxyvanite V₃O₅: A new intercalation‐type anode for lithium‐ion battery

Mn₃ O₄ nanoparticles on activated carbonitride by soft chemical method for symmetric coin cell supercapacitors

SnCo@C@Mn₃O₄ Yolk–Shell Hierarchical Hybrid Nanocubes with Exceptional Lithium Storage Performance

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Enhanced electrochemical properties of Mn3O4/graphene nanocomposite as efficient anode material for lithium ion batteries

Cited by 61 publications

References 60 publications

Oxyvanite V3O5: A new intercalation‐type anode for lithium‐ion battery

Oxyvanite V3O5: A new intercalation‐type anode for lithium‐ion battery

Mn3 O4 nanoparticles on activated carbonitride by soft chemical method for symmetric coin cell supercapacitors

SnCo@C@Mn3O4 Yolk–Shell Hierarchical Hybrid Nanocubes with Exceptional Lithium Storage Performance

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Oxyvanite V₃O₅: A new intercalation‐type anode for lithium‐ion battery

Oxyvanite V₃O₅: A new intercalation‐type anode for lithium‐ion battery

Mn₃ O₄ nanoparticles on activated carbonitride by soft chemical method for symmetric coin cell supercapacitors

SnCo@C@Mn₃O₄ Yolk–Shell Hierarchical Hybrid Nanocubes with Exceptional Lithium Storage Performance