Synthesis of Sn-MnO@nitrogen-doped carbon yolk-shelled three-dimensional interconnected networks as a high-performance anode material for lithium-ion batteries

Zhang, Fanchao; Wang, Yong; Rao, Shun; Mao, Peiyuan

doi:10.1016/j.cej.2018.11.004

Cited by 34 publications

(22 citation statements)

References 42 publications

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“…20 nm (Figure S1d). Moreover, EDS mappings of NCHSs confirm that a certain amount of N can be detected, which comes from the dopamine (Figure S2) …”

Section: Resultsmentioning

confidence: 83%

“…In the final step, MnO 2 can be generated with the reaction of KMnO 4 and carbon on the surface of NCHSs (Equation (1)), and then reduced to MnO at 750 °C under H 2 /Ar (5 : 95) atmosphere (Equation (2)), leading to the successful generation of NC@MnO HHSs (Figure d).

true 4 M n O_{4}^{-} + 3 C + H_{2} O \to 4 M n O_{2} + C O_{3}^{2 -} + 2 H C O_{3}^{-}

true M n O_{2} + H_{2} \to M n O + H_{2} O

…”

Section: Resultsmentioning

confidence: 99%

“…Figure c, e and f indicate that O, Mn and C are uniformly distributed in NC@MnO HHSs, implying that MnO nanoparticles well deposit on NCHSs. Moreover, the N element of NC@MnO HHSs can be distinctly detected (Figure d), which may come from N‐containing PDA …”

Section: Resultsmentioning

confidence: 99%

“…Moreover, EDS mappings of NCHSs confirm that a certain amount of N can be detected, which comes from the dopamine ( Figure S2). [27,32] In the final step, MnO 2 can be generated with the reaction of KMnO 4 and carbon on the surface of NCHSs (Equation (1)), [33,34] and then reduced to MnO at 750°C under H 2 /Ar (5 : 95) atmosphere (Equation (2)), [23,27] leading to the successful generation of NC@MnO HHSs (Figure 1d).…”

Section: Resultsmentioning

confidence: 99%

“…Moreover, the N element of NC@MnO HHSs can be distinctly detected (Figure 3d), which may come from N-containing PDA. [27,32] XRD pattern of NC@MnO HHSs is shown in Figure 4a. All the sharp peaks of NC@MnO HHSs are assigned to MnO (JCPDS No.…”

Section: Resultsmentioning

confidence: 99%

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Highly Reversible Lithium Storage of Nitrogen‐Doped Carbon@MnO Hierarchical Hollow Spheres as Advanced Anode Materials

et al. 2019

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The practical implementation of MnO‐based anode materials is still obstructed because of their short cyclic life and unsatisfactory rate performance, attributable to low conductivity, large volume variation and self‐aggregation of MnO during intense cycles. To overcome these obstacles, we successfully fabricated nitrogen‐doped carbon@MnO hierarchical hollow spheres through a novel approach. As anode nanomaterials for Li‐ion batteries, the nanocomposite possesses a highly reversible capacity of 1302 mAh g−1 after the 200th cycle at 0.1 Ag−1 and 964 mAh g−1 after the 500th cycle at 0.5 Ag−1, respectively. The prominent electrochemical performances of the nanocomposite may result from synthetic effects of nitrogen‐doped carbon hollow structures, nanosized MnO and the gradual generation of high‐oxide‐state manganese oxide on nitrogen‐doped carbon hollow spheres during intensive cycles. The aforementioned results also demonstrate that MnO nanocrystals can be well utilized by attaching to nitrogen‐doped carbon hollow spheres, which is a valid way to achieve excellent lithium storage properties for transition metal oxides.

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“…20 nm (Figure S1d). Moreover, EDS mappings of NCHSs confirm that a certain amount of N can be detected, which comes from the dopamine (Figure S2) …”

Section: Resultsmentioning

confidence: 83%

true 4 M n O_{4}^{-} + 3 C + H_{2} O \to 4 M n O_{2} + C O_{3}^{2 -} + 2 H C O_{3}^{-}

true M n O_{2} + H_{2} \to M n O + H_{2} O

…”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 3 more Smart Citations

Highly Reversible Lithium Storage of Nitrogen‐Doped Carbon@MnO Hierarchical Hollow Spheres as Advanced Anode Materials

et al. 2019

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Synergistic Corrosion Engineering on Metallic Manganese Toward High‐Performance Electrochemical Energy Storage

Sun,

Wang,

Lyv

et al. 2024

Adv Funct Materials

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MnO/rGO with enhanced electrochemical kinetic properties is widely investigated as electrode for high‐performance electrochemical energy storage (EES) devices. However, the synthesis of MnO/rGO via traditional methods suffers from low atomic utilization and complex techniques that are undesirable for practical implementation. Different from existing fabrication strategies, here using metallic manganese as Mn source, a novel, eco‐friendly, and corrosion engineering‐based approach to address the above issues is demonstrated. It is thermodynamically feasible as supported by the E‐pH analysis and for the first time, a significant synergetic effect is observed between NH4+ and GO in strengthening the metallic Mn corrosion reaction. Particularly, in the “ammonia circulation” process, the NH3 molecule, derived from NH4+, acts as a “carrier” for Mn2+ to facilitate its transfer by forming [Mn(NH3)2]2+, which effectively prevents “in situ corrosion”. The phase and structure evolution during the reaction are clarified, and the synergistic corrosion mechanism is also proposed. Benefiting from the efficient lithium‐ion evolution kinetics, Mn─O─C bond formed between MnO and rGO and outstanding structural integrity, the resultant MnO/rGO demonstrates exceptional EES performances in both lithium‐ion batteries and lithium‐ion capacitors. This finding will offer potential for mild, cost‐effective, and environmentally friendly fabrication of other graphene‐based metal oxide electrodes using corrosion engineering.

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Alloying and Nanotechnology for Sn‐based Anode Materials: Paving the Way to the Future of Lithium‐Ion Batteries

Ding,

Zhang,

et al. 2023

Batteries & Supercaps

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The development of lithium‐ion batteries (LIBs) with high energy density is of utmost importance to meet the growing demand for 3C devices and electric automobiles worldwide. Over the past three decades, there has been significant interest in Sn‐based anode materials for LIBs, owing to their high specific capacity and low charge/discharge plateau. Two primary strategies, namely alloying and nanotechnology, have been extensively investigated to enhance the electrochemical performance of Sn‐based anodes. However, the complete understanding and recognition of the full potential of these strategies, both in the past and future, remains incomplete. This review aims to provide a comprehensive discussion on the development of Sn‐based anodes prepared using the aforementioned strategies. Furthermore, it emphasizes the practical potential of Sn‐based anodes and the associated preparation technologies for large‐scale production. Establishing a strong connection between these technologies and high‐performance Sn‐based composites is crucial, and this objective will be achieved through an extensive comparison and detailed introduction of relevant concepts. By addressing these aspects, this review will contribute to the advancement of Sn‐based anodes research and its application in high‐performance LIBs, ultimately driving progress in the field of energy storage.

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Synthesis of Sn-MnO@nitrogen-doped carbon yolk-shelled three-dimensional interconnected networks as a high-performance anode material for lithium-ion batteries

Cited by 34 publications

References 42 publications

Highly Reversible Lithium Storage of Nitrogen‐Doped Carbon@MnO Hierarchical Hollow Spheres as Advanced Anode Materials

Highly Reversible Lithium Storage of Nitrogen‐Doped Carbon@MnO Hierarchical Hollow Spheres as Advanced Anode Materials

Synergistic Corrosion Engineering on Metallic Manganese Toward High‐Performance Electrochemical Energy Storage

Alloying and Nanotechnology for Sn‐based Anode Materials: Paving the Way to the Future of Lithium‐Ion Batteries

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